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Prekom
Prekom for Porsche
Prekom is a family-run business specialising in steering and suspension parts renovation and manufacturing, with a strong focus on Porsche applications. Their range covers stock replacement steering and suspension components for Porsche models, supplied through Design911.
A Quick Look at Prekom
The Prekom family passion has always been cars, technology and aiming to do things that they like the most. This spark led to the start of production and renovation of steering and suspension car parts in 1978, and the second generation is now running the business. Over time they have focused on manufacturing and industrial renovation of aftermarket suspension and steering parts. After initially working across a wide variety of car brands, including steering parts for buses, transportation and construction vehicles, they have for the last two decades specialised in stock replacement steering and suspension parts for Porsche, Ferrari, Maserati and Lamborghini vehicles. Prekom are also OEM to several Porsche parts. Information on this page is based on details supplied by the manufacturer or distributor, plus any OE references provided with the parts.
Choosing the Right Fit for Your Porsche
Where Prekom parts are listed for Porsche, use the supplied model coverage and OE references on the product pages to confirm suitability. Pay close attention to details that commonly affect fitment such as model year, body variant, steering layout, side/position, and any notes about bushes, joints, or mounting style.
- Typical reasons people replace these parts include wear in steering and suspension components, restoring precise handling and safety, and choosing stock replacement options that match original characteristics.
- Common symptoms before replacement can include knocking over bumps, vague steering, wandering, uneven tyre wear, vibration through the wheel, and clunks when turning or braking.
- Practical tips include planning for a professional wheel alignment after steering or suspension work, inspecting related bushes and joints at the same time, and replacing parts in axle pairs where sensible for balanced behaviour.
Browse by Category
If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the diagnosis and parts choice grounded.
Steering Parts — Steering components from Prekom are used to restore precise control and feedback in Porsche models where listed. They are typically chosen when addressing play, knocking, or vague steering, and when you want stock replacement parts that work with the original system design.
Track Rods — Track rods (tie rods) connect the steering rack to the hubs; Prekom replacements, where available for Porsche, are used to remove play, improve alignment control, and bring back a direct steering feel during routine maintenance or front-end refresh work.
Suspension & Axle — In this area, Prekom suspension and axle parts for Porsche are aimed at bringing ride, stability and braking behaviour back to how it should be when original components have worn, with a focus on stock-style geometry and fitment.
Track Control Arms FRONT — Front track control arms from Prekom, where listed for Porsche, are selected to correct geometry, reduce unwanted movement and restore steering precision when original arms, bushes or ball joints have degraded.
Suspension Upgrades — Where Prekom components appear within suspension upgrade packages for Porsche, they are generally used to renew key wear items as part of a wider upgrade, helping keep geometry consistent while other performance parts are fitted.
Explore Prekom at Design911
View the current Prekom range for Porsche at Design911, then filter by model and category to narrow down to the right parts. Always cross-check product notes, OE references and fitment information before ordering, and consider professional installation and alignment for steering and suspension work.
Enhance your Porsche’s steering precision and suspension performance with the Heavy Duty Front Control / A-Arm Bushings Set.
Designed as a direct-fit replacement for worn factory rubber bushings, this HD set features a stiffer, high-durometer compound (~25% firmer than OEM). It minimizes unwanted A-arm flex, keeping your suspension geometry tight and predictable during aggressive cornering, braking, and acceleration.
Sold As A Set Of 4.
x1 Set Required Per Car.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Fits On To Diagram Ref No 14
What This Product Does:
- Pivot / Movement — Let the control arm move in its intended direction as the suspension rebounds or compresses.
- Control & Constrain Motion — Prevent unwanted lateral, fore/aft, or rotational movement of the control arm (i.e. limit flex).
- Isolate Vibration & Noise — Absorb and damp small road-induced vibration or harshness before it transmits to the chassis.
- Maintain Geometry — Help keep consistent alignment (toe, camber) under dynamic loads — braking, acceleration, cornering — by resisting unwanted deflection.
- Steering “slop” / looseness — the front feels less precise, vague in response
- Clunks / knocking over bumps or when braking/accelerating
- Uneven or accelerated tire wear (front tires) due to alignment shifts
- Wandering or drifting behavior under cornering or over undulations
- Excess vibration or harshness in the ride, especially at higher speeds or over rough roads
- Loss of front-end stability — particularly under load (hard cornering, braking)
- Sharper Steering Response – Eliminates compliance that dulls handling.
- Improved Suspension Geometry – Keeps camber and toe settings consistent under load.
- Enhanced Durability – Resistant to deformation, heat, and aging.
- Better Handling Feedback – Feels tighter and more connected to the road.
- Ideal for Street or Track Use – A perfect blend of comfort and control.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134190100
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Upgrade your Porsche’s rear suspension with the Heavy Duty Rear Trailing Arm Bushings Set — designed to deliver sharper handling and long-lasting durability.
These bushings secure the rear trailing arms to the chassis and are critical for maintaining correct wheel alignment and suspension geometry. Over time, original rubber bushings soften or crack, leading to excess flex, vague handling, and uneven tire wear.
The HD bushings are made from a stiffer, high-durometer rubber compound that resists deformation under load. This firmer material minimizes unwanted arm movement during acceleration, braking, and cornering — ensuring your Porsche remains planted, predictable, and precise.
Sold As A Set Of 4
x1 Set Required Per Car.
Fits:
Diagram Ref No 3
What This Product Does:
Symptoms Of Worn Or Failing Trailing Arm Bushings:
- Rear-end clunks or knocks over bumps or during acceleration / deceleration
- Loose or vague rear behavior — the rear may feel less planted or drift under load
- Uneven or accelerated rear tire wear due to shifting alignment or toe changes
- Poor handling / reduced grip in corners or when the suspension is loaded
- Vibration or harshness transmitted from rear suspension movements
- Better Handling Feedback & Precision - Less compliance means the rear responds more immediately to inputs — you feel more connection and confidence.
- Improved Geometry Under Load - During cornering or under dynamic stresses, a stiffer bushing holds alignment (camber, toe) more reliably.
- Reduced Deflection & Movement - Limits unwanted movement in the rear suspension, especially under acceleration, braking, or high lateral loads.
- Increased Durability - Heavy-duty compounds resist fatigue, heat, and aging better than soft OEM rubber, especially in performance use.
- Better Tire Wear Behavior - With more consistent alignment, your rear tires wear more evenly and predictably.
- Upgraded Feel Without Harshness - While fully rigid mounts can introduce harshness and noise, a quality heavy-duty bushing strikes a better balance: firmer control with acceptable comfort for road use.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90133105900
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Upgrade your front suspension geometry with the De-Cambered Ball Joint Set (FI-18). These offset ball joints are engineered to provide an inbuilt additional 3mm negative camber bias, improving front-end grip and cornering response without the need for major suspension modifications.
Sold As A Set.
x2 Sets Required Per Car.
Fits:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
What This Product Does:
- Increases Negative Camber “by Default” - Because the stud is offset outward, the wheel gets a small amount of negative camber without requiring changes at the top strut mount. This helps maintain better contact patch under cornering forces.
- Counters Camber Loss Under Load - In cornering, body roll or suspension compression tends to reduce negative camber (i.e. flatten the tire). The de-cambered joint helps offset that loss so the inside tire stays more planted.
- Improves Handling Stability and Turn-In - With more negative camber under load, the front end grips better, reducing understeer and making turn-in sharper.
- Mild Track / Performance Tuning Without Major Mods - Rather than needing to retrofit adjustable camber plates or change strut towers, this joint gives a modest camber “boost” in a bolt-on manner.
- Retains Full Ball Joint Functionality - It still allows articulation (steering, suspension travel) like a normal ball joint — the offset is only in its alignment, not in its motion.
- Knocking or Clunking Noises - A dull knock from the front suspension, particularly over bumps or while turning, often indicates play in the ball joint.
- Uneven or Excessive Tire Wear - Worn joints allow uncontrolled camber and toe changes, wearing the inside or outside edges of the front tires.
- Loose or Wandering Steering - When the ball joint develops play, the steering feels vague or “floaty” — the car no longer holds a consistent line through corners.
- Vibration or Shimmy at Speed - Free play in the joint can cause steering wheel vibration, particularly over rough surfaces.
- Visible Wear or Damage - Torn dust boots, leaking grease, or excessive movement when inspected during service are clear signs the joints need replacing.
- Inconsistent Handling Under Load - The car may feel unstable mid-corner or react unpredictably to bumps due to geometry shifts caused by worn ball joints.
- Restores Safety & Structural Integrity - The ball joint supports the front suspension load. A failure can cause complete loss of steering control.
- Maintains Proper Wheel Alignment - Fresh joints eliminate unwanted camber/toe drift and keep tires correctly aligned under all loads.
- Improves Steering Precision - Tight, new ball joints restore that crisp Porsche steering feel and predictable handling
- Enhances Cornering Grip - The de-cambered design adds built-in negative camber, improving tire contact and front-end grip through corners.
- Prevents Secondary Wear - Worn joints increase stress on tires, control arms, and suspension bushings — leading to expensive downstream repairs.
- Perfect for Performance & Track Use - The offset camber geometry helps maintain optimal contact patches during high lateral loads, reducing understeer and improving lap-to-lap consistency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134104704
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Upgrade your Porsche’s rear suspension precision with this Heavy Duty Trailing Arm Bushings Set.
Designed for Porsche 944 and 924, this set replaces the factory trailing arm bushings with a higher-durometer heavy-duty compound that minimizes flex and improves handling stability.
Sold As A Set Of 4.
x1 Set Required Per Car.
Fits:
Fits On To Diagram Ref No 4
What This Product Does:
Trailing arm bushings support the rear suspension’s trailing arms—these are the suspension arms that locate the rear wheels fore-and-aft (controlling longitudinal movement) and maintain alignment under load.
The “heavy-duty” or performance version of the bushing set:
Symptoms / Signs You Need Replacement:
- Rear-end clunks, knocks, or “trailing arm slap” over bumps
- Wandering or instability in the rear under braking or cornering
- Poor handling or vagueness in rear responses
- Uneven tire wear on rear wheels
- The rear may feel loose, sloppy, or disconnected under load
Why Upgrade To Heavy Duty Bushings:
- Sharper Handling & Feedback – Stiffer material minimizes unwanted flex.
- Improved Alignment Retention – Keeps toe and camber consistent under load.
- Enhanced Stability – Increases rear-end composure at speed and in corners.
- Long-Lasting Performance – Heavy-duty rubber resists aging and deformation.
- Ideal for Performance & Restoration – Perfect for spirited road driving or track setups.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95133102101
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
Enhance drivetrain precision and performance with the HD Semi-Solid Engine / Transmission Mount Set, designed specifically for Porsche 911 and 912 models
These heavy-duty mounts replace the factory rubber units with a semi-solid, high-durometer compound — around 25 % firmer than standard — providing improved control and response without sacrificing comfort.
The semi-solid design effectively reduces engine and gearbox movement under acceleration, braking, and cornering, giving sharper throttle response, smoother gear changes, and tighter handling stability.
One kit includes 2 halves of mount, (2 kits required per car).
Fits:
Work as engine mounts in 1965-1989 911/912/930
Work as transmission mounts in 1972-1986 911/912/930 (915/930 Transmission Only)
What This Product Does:
- In the Heavy Dusty semi-solid version, the stiffer rubber reduces unwanted flex while still providing some damping, hence a compromise between fully soft and fully rigid (solid) mounts.
Symptoms / Indications That Replacement Or Upgrading Is Needed:
- Engine / gearbox movement or “rocking” under throttle or deceleration
- Clunking or banging noises from the engine bay when shifting or applying torque
- Increased vibration in the cabin or floorboard
- Misalignment over time, causing stress or wear in driveshafts, couplings, or mount brackets
- Feel of looseness or lag in throttle response or drivetrain “lash”
Why Upgrading to HD Semi-Solid Mounts Matters:
- Sharper Response & Less Flex - Because mounts deflect less, the engine / gearbox stays more stable under load, improving throttle response, shift feel, and power delivery.
- Better Drivetrain Alignment - Less movement helps maintain correct angle relationships between engine, gearbox, driveshafts, etc., reducing stress and wear.
- Improved Stability Under Load - During hard cornering, braking, or acceleration, stiffer mounts help avoid drivetrain “twist” or slop, which can upset handling balance.
- Dampening Retained - Semi-solid design still absorbs vibration and noise more than fully rigid mounts, providing a balanced tradeoff for street use.
- Straightforward Installation - Because the inserts fit existing mount shells, installation is simpler — no need for custom brackets or drastic modifications.
- Good for Performance / Restoration Builds - Especially in cars that see spirited driving or occasional track use, the HD semi-solid mounts are a common upgrade that improves control without completely sacrificing comfort.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91137504306
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Enhance cornering precision and grip with the De-Cambered Ball Joint Kit, engineered for Porsche 911 and Porsche 914 models.
This “new type” FI16 ball joint includes a built-in negative camber offset of approximately 3 mm, allowing the front suspension to maintain improved tire contact during aggressive cornering.
The result is sharper turn-in, increased lateral grip, and more consistent geometry under load — all without the need for additional camber plates or major suspension modification.
Sold As A Kit.
x2 Kits Required Per Car.
Fits:
Diagram Ref No 17, 19, 20, 21
What This Product Does:
Typical Symptoms / Use-Case Indicators:
- Camber losses under hard cornering (e.g. inside shoulder lifting)
- You run aggressive alignment on track setups and want to preserve negative camber under load
- You want a simple way to bias the geometry slightly without major suspension changes
Why Choose A De-Cambered Joint:
- Improved Tire Contact Patch – Keeps the tire flatter to the road mid-corner.
- Better Cornering Balance – Reduces understeer by optimizing front grip.
- Maintains OEM Geometry – No structural modification needed.
- Durable, Race-Proven Design – Forged construction handles high loads.
- Enhanced Precision – Ideal for track-day cars, restorations, and spirited street driving.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134104905
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Upgrade your Porsche’s front suspension performance and precision with the HD Front Control Arm Bushing (Rear Position).
This heavy-duty bushing mounts at the rear point of the front lower control arm (wishbone), helping maintain proper suspension geometry and steering alignment.
It features a high-durometer (sport) rubber compound that is around 25% firmer than factory OEM, reducing deflection under load and delivering sharper, more consistent handling.
Sold As A Set Of 2.
Fits:
Fits On To Diagram Ref No 12
What This Product Does:
Symptoms / Signs Of Wear Or Inadequacy:
- Vibration or shudder in the steering wheel, especially under load or during cornering
- A vague or “wandering” front end feel
- Alignment changes under cornering or braking (toe drift)
- Uneven or accelerated tire wear
- Noises (clunks or creaks) from the front suspension under load
- Reduced steering precision / less sharp handling
Why the Sport / Heavy Duty Version Matters:
- Reduced Deflection: Because the harder compound flexes less under load, alignment remains more consistent during aggressive driving or cornering.
- Sharper Steering Feedback: Less “softness” gives more direct, responsive feel between steering input and front-end behavior.
- Better Handling Under Load: Under heavy loads (cornering, braking, etc.), the harder bushing helps maintain geometry more faithfully.
- Durability: Upgraded compounds often resist fatigue, heat, and aging better than soft original rubber, especially in sporty or track use.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96434101707
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
Enhance your Porsche’s handling and ride precision with this Heavy-Duty Spring Plate Bushing Set.
Designed for rear torsion bar suspension systems on air-cooled Porsche 911 and 912 models, these upgraded bushings replace the factory rubber mounts that support the spring plate.
Sold As A Set Of 4.
Fits:
- Porsche 911 1965-1969 2.0L / 912 SWB (F)
- Porsche 911 1970-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
Fits On To Diagram Ref No 25
What This Product Does:
- The spring plate is part of the torsion bar suspension system: as the rear suspension moves, the torsion bar twists, and the spring plate (with its bushings) transmits those torsional loads to the chassis.
- The bushings isolate vibration and reduce noise, and they allow some controlled movement, while preventing excessive play.
- A correctly functioning spring plate + bushing assembly helps maintain rear ride height, alignment consistency, and smooth articulation of the rear suspension under dynamic load.
- Clunking / knocking noise at the rear when driving over bumps or under load.
- Sagging or uneven ride height at the rear (one side lower)
- Excessive rear vibration or harshness under acceleration or load
- Contact / rubbing noise — the worn bushings may allow the spring plate to contact its cover or adjacent metal surfaces.
- Degraded handling / instability in the rear under cornering
- Loss of the “tight” feel in the rear suspension; more play in the rear suspension response
Why Replacement Matters:
- Restores Rear End Stability & Ride Quality: The upgraded, stiffer bushings reduce unwanted movement and maintain better control under load.
- Preserves Correct Geometry & Height: Keeps torsion bar and spring plate alignment tight, preventing sag or misalignment over time.
- Reduces Noise & Harshness: Eliminates metal-to-metal contact and vibration that results from deteriorated rubber.
- Better Durability: Heavy-duty rubber compound resists deformation, aging, heat, and oil.
- Protects Other Components: Reduces stress on torsion bars, suspension arms, and adjoining parts that might be damaged by excessive play.
- Essential for Restoration / Rebuilds: When rebuilding rear suspension or restoring a classic 911, these bushings are part of a full refresh to return the car to factory (or better) behavior.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90133300309
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
Restore your Porsche’s legendary steering feel with the Front Wishbone Ball Joint Kit — the updated “New Type (FI16)” design used on 911 and 914 models.
The ball joint links the front lower wishbone (A-arm) to the steering knuckle, allowing controlled pivoting as the suspension moves. It maintains precise wheel geometry and ensures responsive handling.
Sold Each.
x2 Kits Required Per Car.
Fits:
Diagram Ref No 13, 15, 16, 17
What This Product Does:
Symptoms Of Wear Or Failure:
- Steering play / looseness — the steering may feel vague or “sloppy.”
- Knocking or clunk noises — a distinct knock over bumps or during suspension travel.
- Uneven or rapid tire wear — particularly on the front tires, due to misalignment or movement under load.
- Vibration or shimmy — especially during cornering or when driving over uneven surfaces.
- Borderline geometry shifts — alignment may change subtly when load is applied or when cornering.
- Reduced road feel / control — the front end may feel less precise or less responsive.
- Restores Steering Precision & Control - Worn joints introduce slack and movement. Replacing them ensures crisp, direct response from your steering.
- Maintains Alignment Under Load - A healthy ball joint holds the wheel geometry consistent even when cornering or under load.
- Prevents Further Suspension Damage - Allowing play in a ball joint transfers forces to other components — control arms, bushings, knuckles, etc. Replacing it protects the rest of the suspension.
- Eliminates Noise & Harshness - New joints operate cleanly with no unwanted knocking or vibration.
- Safety & Reliability - Because the ball joint is a critical steering link, a failed joint can degrade or compromise safe vehicle control. Having robust, correctly functioning joints is essential.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134104905
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
Designed to replace Porsche’s factory silent bloc in rear suspension link arms. Engineered for road use and built to OEM tolerances, this is a direct-fit, stock-spec solution for various Porsche 993.
Fits:
Porsche 993 1995-98 Stock Hardness
Replaces the rubber bushing on each of the rear 993 lower wishbone, camber control arm, and KT control arm. Each arm has 1 rubber bushing, for a total of 6 bushings per kit… enough to do one car.
Stock-hardness – Restores performance and ride quality to original.
Sport-Hardness – Similar to the 993 RS bushing, sport hardness rubber is about 25% firmer. Deflects less under cornering loads and thereby maintains alignment more precisely.
Features & Benefits
- OEM-equivalent rubber compound for a compliant, comfortable ride
- Designed and manufactured in the EU with strict quality control
- Backed by Prekom’s 2-year warranty
- Straightforward installation; no modifications needed on stock link arms
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PR52004PKIT
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Improve shifting precision and driveline stability with this Gearbox / Transmission Bushing Set.
Designed for Porsche 996 and 997 models, these heavy-duty bushings replace the original soft rubber mounts with a higher-durometer compound and reinforced aluminum cores.
Sold As A Set Of 2.
Fits:
- Porsche 996 C2 3.6L 2002-2005 (Tiptronic Transmission Only)
- Porsche 996 C4 3.6L 2002-2005 (Tiptronic Transmission Only)
- Porsche 996 C4S 3.6L 2002-2005
(Tiptronic Transmission Only)
- Porsche 996 TURBO 2000-05
(Tiptronic / Manual Transmission)
- Porsche 996 GT2 2001-05
(Tiptronic / Manual Transmission)
- Porsche 996 GT3 MKI 1999-02 (Manual Transmission Only)
- Porsche 996 GT3 MKII 2003>> (Manual Transmission Only)
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
(Tiptronic Transmission Only)
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
(Tiptronic Transmission Only)
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
(Tiptronic Transmission Only)
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08 (Tiptronic Transmission Only)
- Porsche 997 MK1 GT3 2007-09 (Manual Transmission Only)
- Porsche 997 MKII GT3 2010-11
(Manual Transmission Only)
- Porsche 997 MKII Turbo 2010-13
(Manual Transmission Only)
- Porsche 997 MKII GT2 RS 2011-13
(Manual Transmission Only)
Fits On To Diagram Ref No 1
What This Product Does:
- Support and Mount the Transmission - They hold the gearbox (transaxle) in place relative to the chassis, keeping it aligned and preventing undesired motion.
- Absorb Vibration & Isolate Noise - The bushings dampen transmission vibration and drivetrain noise, improving comfort.
- Control Drivetrain “Slop” / Play - Stiffer bushings reduce the amount of twist or movement under torque load, minimizing driveline lash or unwanted movement when accelerating, shifting, or off the throttle.
- Maintain Geometry & Alignment - Properly mounted gearbox prevents shifting of driveline angles, which helps protect CV joints, driveshafts, and reduces undue stress elsewhere.
- Clunking, knocking, or banging noises during shifts, on throttle application, or when decelerating
- Driveline lash / slop — a sensation of delay or “slack” before power transfer
- Increased vibration or harshness felt in the cabin, especially under load or gear changes
- Gearbox movement — the transmission may move or twist noticeably when revs / torque change
- Wear on adjacent components — e.g. CV joints, driveshafts, differential support bearings may see accelerated wear
- Restores Sharpness & Responsiveness — by eliminating soft or worn mounts, the drivetrain becomes more responsive and direct.
- Reduces Noise, Vibration & Harshness — a proper bushing absorbs and isolates vibration better than degraded old rubber.
- Protects Other Drivetrain Parts — reduces stress on CV joints, couplings, differential mounts due to movement or misalignment.
- Preserves Safety & Durability — under high torque loads (e.g. hard driving), a weak mount can twist excessively and cause damage.
- Better Handling Feedback — with less transmission movement, throttle transitions and engine braking feel more controlled and precise.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99737503303
The product you are viewing cross references to these numbers
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Renew the precision and comfort of your Porsche’s rear suspension with this Spring Plate Bushing Set.
This kit replaces the bushings that mount the rear torsion bar spring plate, a critical component in Porsche’s rear suspension design. The spring plate transfers torsional force from the torsion bar to the chassis, while the bushings isolate vibration and prevent metal-to-metal contact.
Sold As A Set Of 4.
Fits:
Fits On To Diagram Ref No 23
What This Product Does:
Symptoms When It Fails Or Wears:
- Clunking, knocking noises from the rear under load or over bumps
- Suspension height drift or sagging in one corner, due to reduced torsional resistance
- Excessive vibration or harshness through the rear structure
- Metal contact or rubbing noises if the bushing is too worn and allows the plate or torsion bar to contact its housing
- Uneven rear handling response, especially during load transitions or cornering
- Restores Suspension Geometry – Keeps torsion bars aligned and balanced for consistent handling.
- Improves Comfort – Fresh bushings absorb vibration and road shocks, restoring ride quality.
- Eliminates Noise – Prevents knocking and squeaks caused by deteriorated rubber.
- Ensures Safety & Stability – Maintains traction and control during cornering and braking.
- Preserves Original Performance – Essential for Porsche 924, 944 and 968 restorations or suspension rebuilds.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95133302100C
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
These sway bar links connect the front anti-roll bar to the suspension control arms, transferring cornering forces evenly between both sides of the car.
By reducing body roll and maintaining tire contact with the road, they ensure sharper turn-in response, improved stability, and factory-level ride comfort.
Sold Each.
Fits:
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Diagram Ref No 7
What This Product Does:
- The drop link connects the stabilizer anti-roll bar to the suspension control arm or strut.
- When the car corners, the stabilizer bar tries to resist body roll. The drop link transfers those forces between the bar and the suspension arm, helping to keep the car more level and stable during cornering.
- It ensures that roll (leaning) forces are distributed symmetrically across both sides of the front suspension.
Symptoms Of A Faulty / Worn Drop Link:
- Clunking or knocking noises from the front suspension, especially when going over bumps or uneven surfaces
- Increased body roll or leaning in corners
- Uneven tire wear due to uneven suspension load
- Loose / sloppy feel in the front end or steering under load
- The car may feel less stable or less precise in handling
Why Replacement Matters:
- Restores proper roll resistance and handling balance — essential for safe and confident cornering
- Eliminates noise and harshness introduced by loose or failing links
- Prevents excessive stress on other suspension components (bushings, ball joints, control arms)
- For inspection / MOT in many regions, worn suspension links are often flagged as faults
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96434307
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
These bushings mount the front lower control arms (A-arms) to the chassis, providing a flexible yet stable connection that absorbs vibration and maintains suspension geometry. Over time, the original rubber bushings harden and crack, allowing unwanted movement and degrading handling performance.
Sold As A Set Of 4.
Fits:
- Porsche 911 1969-1969 2.0L / 912 SWB (F)
- Porsche 911 1970-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 914 (1970-1976)
Fits On To Diagram Ref No 12
What This Product Does:
- Dampens vibration & absorbs shock — the bushings isolate the control arm from chassis vibrations and road shocks, reducing noise and harshness.
- Allows controlled flexibility / movement — they permit controlled pivoting of the control arm through vertical suspension motion while resisting lateral or unwanted movement.
- Maintains proper alignment & geometry — helps keep toe, camber, and other alignment settings consistent during driving, especially under load or when cornering.
- Prevents steering looseness / play — worn bushings lead to slack in the steering linkage; fresh bushings restore tightness and responsiveness.
Common Symptoms Of Failure:
- Clunking or knocking noises at the front when hitting bumps or during braking
- Steering play or vague / wandering steering feel
- Uneven or accelerated tire wear, particularly on front tyres
- Front-end instability or wandering under braking
- Changes in handling / alignment after driving or over repeated impacts
- Vibration or shimmy through steering, especially at speed or in corners
- Restores precise steering response — new bushings eliminate slack and restore firm control arm connection.
- Maintains correct alignment — stable bushings ensure geometry does not shift under load, preserving tyre wear and handling consistency.
- Reduces noise / vibration — fresh bushings better absorb shocks, lowering noise, vibration, harshness from suspension movement.
- Improves safety and feedback — tight control arms give more predictable, confident handling.
- Prevents further damage — worn bushings transmit abnormal loads to ball joints, tie rods, control arms, and chassis mounting points.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134190100
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 914 (1970-1976)
This component secures the rear pivot point of the front lower control arm, ensuring the arm remains properly aligned as the suspension moves. It plays a critical role in maintaining stable handling, accurate steering feedback, and smooth suspension operation.
Sold Each.
Fits Left And Right.
Fits:
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
What This Product Does:
- The control arm mount bracket holds a bushing or bracket that secures the rear (inner) end of the front control arm in position.
- It helps fix the control arm’s pivot point, preventing unwanted movement in vertical or lateral directions.
- Provides structural support to ensure the control arm maintains proper alignment and geometry under load.
- Absorbs some vibration / forces transmitted through the suspension, via its bushing component, helping isolate noise and harshness.
- Clunking or knocking noises from the front suspension especially over bumps
- Play or looseness in the front end; the car may feel vague in steering or suspension
- Uneven or accelerated tyre wear, particularly at the front wheels, because alignment can shift under load
- Front end movement under braking or acceleration, e.g., control arms moving slightly
- Vehicle wandering or instability, especially during cornering or over uneven surfaces
- Restores tight suspension control — prevents excess movement and restores crispness to the steering and handling
- Maintains proper suspension geometry (toe, camber, caster) under load, which is important for safety, tyre life, and driving performance
- Prevents damage to other components — if the control arm is allowed to move too much, it can stress ball joints, bushings, or steering parts
- Reduces noise, vibration, and harshness — a worn mount bracket can transmit more vibration and allow metal-on-metal contact
- Keeps the vehicle roadworthy, stable, and predictable — especially for performance or classic models where handling precision matters
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95134102301
The product you are viewing cross references to these numbers
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
The track rod—also known as the tie rod—is a crucial steering linkage component connecting the steering rack to the wheel hub, transferring your steering input precisely to the wheels.
Sold Each.
Fits Left And Right.
Fits:
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
Diagram Ref No 3
What This Product Does:
- Transmit Steering Input - When you turn the steering wheel, the steering rack moves. The track rod carries that motion to the wheel knuckle, causing the wheels to turn.
- Maintain Alignment & Geometry - It helps maintain front-end alignment (toe settings) so tires wear evenly and steering remains precise.
- Compensate for Suspension Movement - As the suspension moves up/down (bumps, cornering), the track rod must maintain its connection and angle without binding or excessive play.
- Absorb Minor Deflection - It must be stiff, but slightly forgiving to absorb small impacts or vibrations — not rigid.
- Excess play / looseness in steering — the steering wheel feels “loose” or delayed.
- Knock / clunk noises from front end during bumps or over uneven road surfaces.
- Uneven or accelerated tire wear, especially inner or outer edges.
- Steering pulling — the car tends to drift or pull to one side.
- Variable steering feel — sometimes stiff, sometimes loose — depending on direction or motion.
- Excessive vibration or shimmy in the front wheels.
- Safety & Control - A loose or failing track rod compromises steering precision. That can reduce driver control, especially at higher speeds — a serious safety hazard.
- Prevents Further Damage - A worn track rod transmits irregular forces to the steering rack, knuckles, and wheel bearings, accelerating wear on those components.
- Restores Alignment Integrity - A good track rod lets alignment settings (toe, camber) hold correctly; a bad one causes alignment to drift.
- Better Tire Life - Proper steering geometry means more even tire contact and less edge wear, saving you money on new tires.
- Drivability & Feel - Restoring tight, responsive steering ensures the car feels solid, controlled, and responsive — not vague.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94434703307
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87