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Rohler

About Rohler

ROHLER for Porsche

ROHLER creates premium replacement and performance components for Porsche vehicles, developed for owners, restorers and specialist workshops that believe the smallest details matter. Design911 offers ROHLER products alongside genuine, OE Match and quality aftermarket options, supported by specialists who understand these cars.

The ROHLER story

ROHLER is defined by a straightforward philosophy: “Don't simply replace it. Improve it.” Its range extends from precision-machined titanium fasteners and engine hardware to carefully engineered replacement components, with an emphasis on superior materials, precise fitment and long-term durability. The understated design approach allows attention to detail to continue beyond visible parts to the hardware and engineering underneath. Premium materials. Precision engineering. Lasting solutions. ROHLER — Engineered to Belong.

Why choose ROHLER for your Porsche

Many Porsche components and fixings work in demanding conditions involving heat, moisture, road salt and repeated servicing, where conventional parts can eventually corrode, seize, deteriorate or become difficult to service. ROHLER develops more considered long-term solutions and, where the application demands it, uses materials such as Grade 5 titanium for their combination of high strength, low weight and exceptional corrosion resistance. Positioned above conventional aftermarket components, the brand combines modern engineering, carefully selected materials and precise fitment for restoration, maintenance and performance-focused work. Design911 hand-picks brands for their quality and suitability, helping customers select components for routine repairs, detailed restorations or carefully planned upgrades.

Premium replacement and performance components developed for Porsche vehicles
Precision-machined titanium fasteners and carefully engineered engine hardware
Grade 5 titanium used where applications require strength, low weight and corrosion resistance
Suitable for air-cooled builds, engine and transmission rebuilds and high-value restorations
Components intended to improve known weak points and withstand demanding environments
Fitment supported by supplied model coverage and relevant OE references

categories we stock from this brand

Design911 stocks ROHLER across the following categories for Porsche models. Check the supplied model coverage, model year, side or position, connector type and OE references where relevant to confirm the correct application.

Engine Rebuild Parts ROHLER engine hardware and replacement components are suited to planned Porsche engine overhauls, specialist workshop builds and projects where premium materials and attention to detail are priorities.

Internal wear can present as low or uneven compression, excessive oil consumption, persistent leaks, abnormal noises, low hot-idle oil pressure or metallic debris in the oil and filter.
Before committing to a rebuild, carry out compression and leak-down tests, inspect the bores with a scope and check the oil and filter for contamination or debris.
While the engine is apart, assess chains, guides, seals, bearings, gaskets and critical hardware to reduce the chance of a repeat strip-down.
Confirm the underlying cause, including overheating, oiling problems or coolant and oil cross-contamination, before installing replacement components.

Camshaft covers / Gaskets Camshaft covers and gaskets are renewed to restore reliable sealing, control oil leaks and protect the upper areas of a Porsche engine from contamination.

Heat cycling can harden or shrink gaskets, while covers may crack, corrode, distort or develop damaged sealing surfaces.
Typical symptoms include oil seepage, wetness around fasteners, burning-oil smells, smoke from oil reaching hot components and residue around the camshaft-cover area.
Do not rely on overtightening bolts; check cover flatness and sealing surfaces, use the correct torque sequence and renew brittle seals.
Inspect the breather or PCV system and crankcase ventilation because excess pressure can contribute to recurring leaks.

Engine Tuning ROHLER performance components support Porsche projects intended to improve known weak points, refine durability or complement carefully planned engine modifications.

Before tuning, confirm good mechanical health through compression, fuelling, sensor, cooling and oil-temperature checks.
Investigate hesitation, flat spots, poor idle, surging, inconsistent boost, misfires and abnormal fuel mixture readings before selecting components or calibration changes.
Check for boost and vacuum leaks and resolve mechanical faults rather than attempting to mask them through tuning.
Any modification should be considered as a complete system, with suitable supporting components and a calibration appropriate to the application.

Camshaft Covers Replacement camshaft covers are used where original covers have cracked, warped or can no longer provide a dependable sealing surface, often as part of Porsche top-end work.

Camshaft covers retain engine oil and protect camshafts and valvetrain components from dirt and debris.
Inspect for distortion, cracks, damaged bolt holes, brittle seals and persistent leaks that remain after gasket replacement.
Follow the specified tightening pattern and torque because overtightening can distort a cover or damage threads.
Check crankcase breathing at the same time, as restricted ventilation can worsen top-end oil leaks.

Interior & Accessories Interior components and accessories can refresh worn touch points, replace damaged trim or add practical storage and comfort features without changing the core character of a Porsche.

Common concerns include sticky switches, broken clips, rattles, sagging trim, worn surfaces, faded plastics and damaged hinges or handles.
Brittle plastics, ageing foam adhesives and water ingress can contribute to damp smells, mould or warped panels.
Many parts vary by Porsche model and year, so check compatibility details and part references carefully.
Use suitable trim tools and renew missing or damaged clips and fasteners to minimise loose panels and new rattles.

explore the range

Explore ROHLER components for high-value Porsche restorations, air-cooled builds, engine and transmission rebuilds, motorsport-inspired projects and specialist workshop work at Design911. Match the Porsche model and year and, where possible, cross-check OE part numbers before fitting; renew critical consumables such as seals, clips and bolts and address worn mounts, misalignment or contamination so the underlying cause is resolved.

3 3 3

Exhaust Titanium Lock Nut for Bolt. Porsche 993

99908405202T::1

Product Information

Exhaust Lock Nut for Bolt. M8. Made out of Titanium.

Fits onto cat to silencer and silencer to tail pipe o-ring clamps.

Fits:
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 11

Related reference numbers
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99908405202T

99908405202

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3 3 3

Exhaust Titanium Lock Nut for Bolt . Porsche 964

99908405202T

Product Information

Exhaust Lock Nut for Bolt. M8. Made out of Titanium.
Fits onto silencer and tail pipe o-ring clamps.

Fits:
Porsche 964 C2 / C4 1989-94

Click 'Zoom in' for large parts diagram.
Diagram ref no 10.

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99908405202T

99908405202

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4 4 4 4

Exhaust manifold bolt in Titanium M8x27 for Porsche 996 / 997 / 991 Turbo / GT2 / GT3

TITANTORXLONG18

Product Information

Titanium exhaust manifold bolts M8x27. Torx head.
Pack of 18 pcs.

Fits:
Porsche 996 Turbo / GT2 / GT3 1999-2005
Porsche 997.1 Turbo / GT2 / GT3 2007-2009
Porsche 997.2 Turbo / GT2 RS / GT3 2010-2013

Porsche 991 Turbo / Turbo S / GT2RS 2014-2020

Titanium is a highly corrosion-resistant material, which is particularly important in exhaust systems due to the exposure to extreme heat and moisture. The corrosion resistance of titanium bolts ensures longevity and reduces the risk of premature failure, ultimately saving the owner from costly repairs.

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

Related reference numbers
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TITANTORXLONG18

99907358901

90037822701

90037813100

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5 5 5 5 5

Exhaust manifold bolt in Titanium M8x27 for Porsche Boxster 718 / 982, Cayman 718 / 982C

TITANTORXLONG12

Product Information

Titanium exhaust manifold bolt M8x27.
Set of 12 (OE Ref: 99907358901)

Titanium is a highly corrosion-resistant material, which is particularly important in exhaust systems due to the exposure to extreme heat and moisture. The corrosion resistance of titanium bolts ensures longevity and reduces the risk of premature failure, ultimately saving the owner from costly repairs.

Fits:
Porsche 986 Boxster 1997-2004
Porsche 987 Boxster 2005-2008
Porsche 987C Cayman 2006-2008
Porsche 996 Carrera 1998-2004
Porsche 997.1 Carrera 2005-2008
Porsche 718 (982) Boxster 2017-2021
Porsche 718 (982C) Cayman 2017-2021

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

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TITANTORXLONG12

99907358901

99907507400

90037813100

99907507100

9990750710A

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6 6 6 6 6 6

Aluminium Centre filler fuel tank, for Right Hand Drive (RHD). Porsche 964 / 993 90L

96420102204/1

Product Information

Rohler hand-built, 90-litre aluminium centre filler tank for right-hand-drive Porsche 964 / 993 retro and backdate projects. Its bonnet-centred filling arrangement creates an RSR-inspired appearance while retaining compatibility with the factory fuel-level sender.

Fits

Right-hand-drive (RHD) applications only.
Porsche 964 1989-94
Porsche 993 1994-98

964 (911) C2 1989–93
964 (911) C4 1989–93
964 (911) RS 3.6L 1991–93
964 (911) RS 3.8L 1991–93
964 (911) TURBO 3.3L 1991–93
964 (911) TURBO 3.6L 1991–93
993 (911) C2 1994–97
993 (911) C4 1994–97
993 (911) RS 1994–97
993 (911) C2S 1994–97
993 (911) C4S 1994–97
993 (911) TURBO 1994–96
993 (911) GT2 1994–97
993 (911) TURBO S 1994–97

Check fitment for your specific vehicle (model, year, engine) before ordering.

Diagram: 201-00, item 3 (964; /RL -91).
Diagram: 201-00, item 4 (964; /RL 92-).
Diagram: 201-00, item 2 (993; /RL).

What This Product Does

This tank provides fuel storage with a central bonnet filling point for a retro-style conversion. Internal baffles limit fuel movement, and a breather valve is supplied as part of the assembly.

Functions

Stores fuel within a 90-litre tank.
Provides access for refuelling through the bonnet centre.
Accommodates the vehicle's original fuel-level sender.
Restrains fuel movement using internal baffles.

Technical Details

Construction: hand-built aluminium; capacity: 90 litres.
Configuration: centre filler for RHD vehicles.
Included components: filler cap, surrounding trim and two mounting brackets.
Tank equipment: breather valve and internal baffles.
Pressure testing: 1 bar.
Internal diagram reference: 99320102200, with notes /RL -91, /RL 92- and /RL.

Symptoms of Fault

When assessing the existing tank installation, relevant concerns include petrol odours after refuelling, dampness or staining near connections, damaged fittings and visible deterioration. These signs can also originate from filler hoses, seals or breather plumbing; inspect the surrounding components before deciding which part needs replacement.

Why Replacement Matters

This tank is intended for projects requiring a centre-fill layout and retro styling. Where the existing installation is damaged or deteriorated, assess associated hoses, seals and mounting hardware alongside the tank rather than assuming a new tank alone will resolve every fault.

FAQs

Can the factory sender be retained?
The tank accepts the original sender; its condition should be checked during installation.

Which mounting components are supplied?
Two brackets are included for attachment to the chassis. A strut brace is also recommended to help secure the tank.

Does a fuel odour confirm tank failure?
No. Inspect filler connections, sealing components and ventilation hoses to establish the source.

Support & Advice

* Might require other parts to fit. Please contact our office.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96420102204

96420102200

96420102201

96420102202

96420102203

96420102204

99320102200

99320102201

99320102202

99320102203

The product you are viewing cross references to these numbers
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.

7 7 7 7 7 7 7

Aluminium centre filler fuel tank, for Left Hand Drive (LHD). Porsche 964 90L 1989-94

96420102104/1

Product Information

Rohler aluminium centre filler fuel tank for left-hand-drive Porsche 964 retro and backdate projects. Its handmade 90-litre construction provides an RSR-inspired layout with refuelling through the bonnet centre.

Fits

Porsche 964 1989-94
964 (911) C2 1989–93
964 (911) C4 1989–93
964 (911) RS 3.6L 1991–93
964 (911) RS 3.8L 1991–93
964 (911) TURBO 3.3L 1991–93
964 (911) TURBO 3.6L 1991–93

For Left Hand Drive (LHD) vehicles only. Check fitment for your specific vehicle (model, year, engine) before ordering.

What This Product Does

This tank stores fuel while providing a central filling arrangement for a retro-style 911 build. It accepts the vehicle's original fuel-level sender, allowing that component to be retained as part of the conversion. Internal shields limit fuel movement within the tank, and a breather valve is supplied.

Functions

Provides 90 litres of fuel storage.
Positions refuelling access centrally through the bonnet.
Accommodates the original fuel-level sender.
Uses internal shields to reduce fuel sloshing.

Technical Details

Material and manufacture: handmade aluminium.
Capacity: 90 litres.
Configuration: centre filler for LHD applications.
Included components: filler cap, surround, two mounting brackets and breather valve.
Internal construction: shields to control fuel movement.
Pressure testing: each tank is tested at 1 bar.

Symptoms of Fault

When assessing the existing installation, check for petrol odours after refuelling, damp areas near the tank, staining at connections and damaged fittings. These concerns can also originate from filler hoses, breather plumbing or seals, so identify the source rather than assuming the tank itself is responsible.

Why Replacement Matters

This tank suits projects seeking a central filler and an RSR-style appearance rather than a conventional refuelling layout. Where replacement also addresses deterioration, inspect surrounding hoses, seals and fittings so that worn supporting components are not overlooked.

FAQs

Can the original sender be reused?
Yes. The tank accommodates the original fuel-level sender.
What should be inspected during installation?
Assess the filler hoses, breather connections and sender seal, renewing deteriorated components where needed.
Does a petrol smell confirm tank failure?
No. Inspect connected hoses, seals and ventilation plumbing before deciding which component requires replacement.

Support & Advice

Attach the two supplied brackets to the chassis. A strut brace is also recommended to help secure the tank. Confirm the mounting arrangement and centre-filler layout as part of planning the conversion.

Related reference numbers
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96420102104

96420102100

96420102101

96420102102

96420102103

96420102104

5 5 5 5 5

Engine / gearbox mounts with HD 85A shore rating sport bushes. Porsche 911 1987-89 G50

3609309112

Product Information

Engine / gearbox mounts (SET OF 2) HD 85A shore rating sport bushes

New sport version with shifter rubber mounts, great for track days and high speed driving. Fits engine mounts OR transmission mounts ,shifting for more smoother and exact shifting.

You will need 2 for the engine 3.2L G50
You will need 2 for transmission G50 Gearbox

Fits:
Porsche 911 1987-89
Porsche 911 Cabrio 1987-89

Click picture for large parts diagram.
Diagram Ref No 8.

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3609309112

91137504307

91137504306

91137504300

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5 5 5 5 5

Engine / gearbox mounts with HD 85A shore rating sport bushes. Porsche 911 1976-86

3609309111

Product Information

Engine / gearbox mounts (SET OF 2) HD 85A shore rating sport bushes

New sport version with shifter rubber mounts, great for track days and high speed driving. Fits engine mounts OR transmission mounts ,shifting for more smoother and exact shifting.

You will need 2 for the engine 3.0L or 3.2L
You will need 2 for the 915 transmission (Note: This mount is not compatible with the later G50 gearbox)

Fits:
Porsche 911 1976-86
Porsche 911 Cabrio 1978-86

Click picture for large parts diagram.
Diagram Ref No 8.

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3609309111

91137504307

91137504306

91137504300

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4 4 4 4

Engine mount with HD polyurethane bush Porsche 986 Boxster 1997-04 / 987 Boxster 2005 > / 987C Cayman 2006 >

3609309872

Product Information

Engine mount with HD polyurethane bush

Fits:
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987C.1 Cayman 2006-08

This product replaces:

98737502304, 98737502305, 98637502307

Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.

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3609309872

98737502304

98737502305

98637502307

9863750230

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4 4 4 4

Engine mount with HD 95A shore rating bush Porsche 986 Boxster 1997-04 / 987 Boxster 2005 > / 987C Cayman 2006 >

3609309871

Product Information

Engine mount with HD 95A shore rating bush

Fits:
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987C.1 Cayman 2006-08

This product replaces:

98737502304, 98737502305, 98637502307

Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.

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3609309871

98737502304

98737502305

98637502307

9863750230

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3 3 3

Front wishbone control arms with 95A shore rating polyurethane bush's. Porsche 993

3602409933

Product Information

Front wishbone control arms inc 95A shore rating polyurethane bush's. Porsche 993 SET OF 2

Full set of lower arms with bushings installed Left & Right Kit

Fits:
Porsche 993
Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:

- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components

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3602409933

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99334101702

99334101800

99334101802

99334101801

99334101780

99334101782

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99334101882

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3 3 3

Front wishbone control arms with 95A shore rating polyurethane bush's. Porsche 964

3602409643

Product Information

Front wishbone control arms inc 95A shore rating polyurethane bush's. Porsche 964 SET OF 2

Full set of lower arms with bushings installed Left & Right Kit

Fits:
Porsche 964 1989-94
Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:

- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components

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3602409643

96434101707

96434101806

96434101807

96434101780

96434101782

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Track control arm and bush kit ADJUSTABLE front. Porsche 997 / 991 / Boxster / Cayman Rohler

3602409962G

Product Information

Adjustable track control arm with Black 95A shore rating bush fitted (SET OF 2)

Adjustable also uses our Black 95A material for both bushes for ultimate performance and is supplied with two CNC machined sleeves and spanners for on-car adjustment of both caster and camber, with the outer bush sleeve being made from a hard-anodized 2011 grade aluminium for increased corrosion and wear resistance.

PACK OF 2

This arm features suspension geometry tuning, with a caster increase of +/- 1.9° and camber adjustment of +/- 0.75°

OEM Part Number: 99134105304
OEM Part Number: 99734105304
OEM Part Number: 99134105321

Fits:
FRONT
Porsche 997 inc. Turbo
Porsche 991 (2012-2019)
Porsche 718 Boxster/Cayman
Porsche 981 Boxster/Cayman
Porsche 987 Boxster (2005-2012)
Porsche 987C Cayman (2005-2012)

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3602409962G

99134105304

99734105304

99134105321

PF57K-1002G

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3 3 3

Control arms 'Coffin Arm' fitted with HD 95A bushes (set of 2) Porsche 986 Boxster and 996 >>04

3602409961B

Product Information

Control arms 'Coffin Arm' fitted with HD 95A bushes (Set of 2 Left & right)
two track control arms fitted with Black 95A inner & outer bush

Fits:
Porsche 986 Boxster 1997-04 Front or Rear
Porsche 996 C2/C4/C4S 1998-04 Front or Rear
Porsche 996 Turbo 2000-2005 Front (non adjustable) or Rear
Porsche 996 GT3 1999-2002 MKI Rear
Porsche 996 GT3 2003-2005 MKII Rear (non adjustable)

Please note this arm is not an adjustable type (not motorsport - M004 option)

Please click 'Zoom in' to view the diagram (No 21)

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3602409961B

99634105316

99634105317

0303247

99634105305

99634105318

99634105306

99634105307

99634105314

99634105316

99634105317

99634194100

99634194101

38568

99634105319

PF57K-1001

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Front motorsport strut top mounts. Porsche 924 / 944 / 968

3602509442

Product Information

Front motorsport strut top mounts. Porsche 924 / 944 / 968
Price is for a pair

Fits:
Porsche 924 all
Porsche 944 all
Porsche 968 all

This front strut upper mount is inspired by Porsche 968 ADAC GT race car. The reproduction item is similar to the original part which has never been available commercially. Item is assembled with maintenance free, high quality motorsport bearing.

NOTE: Stock height of the bearing with flanges is 31mm.

Upgrade your vehicle's suspension with this high-performance monoball top mount, designed as a direct replacement for the original OE top mount. By replacing the compliant rubber bushing with a precision spherical bearing (monoball), unwanted suspension deflection is significantly reduced, providing a more direct connection between the suspension and chassis.

The result is improved suspension rigidity, sharper steering response, and more precise handling, allowing the suspension geometry to remain more consistent under high cornering and braking loads. This makes monoball top mounts an ideal upgrade for performance driving and motorsport applications where maximum steering precision and chassis feedback are desired.

Please note that, due to the elimination of the original rubber isolation, increased road noise, vibration, and harshness (NVH) will be transmitted into the cabin. Ride comfort will be reduced, and suspension noise may become more noticeable during normal road use.

Key Features:

Direct replacement for the original OE top mount.
Precision monoball (spherical bearing) design.
Increased suspension rigidity.
Quicker, more responsive steering.
Improved handling and suspension geometry control.
Ideal for performance and motorsport applications.

Important Information:
This product is recommended for track use only. The increased noise, vibration, and reduced ride comfort make it unsuitable for drivers seeking OE levels of refinement for everyday road use.

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3602509442

477412345

95134301804

95134301830

94434390301

95134301831

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3 3 3

Control arms 'Coffin Arm' fitted with Adjustable HD bushes (set of 2) Porsche Boxster, Cayman, 996, 997

3602409961G

Product Information

Track control arms with adjustable bushings.

Fitted with Black 95A material for both bushes for ultimate performance and is supplied with an offset outer sleeve and CNC machined inner sleeve to allow for on-car adjustment of both caster and camber, for quick and easy optimisation of your wheel alignment. (tools or spanner not included) These arm features suspension geometry tuning, with a caster increase of up to 0.4° and camber adjustment of +/- 0.75°

OEM Part Number: 98133105301, 99733104180, 99634105319

Fits:

FRONT
Porsche 997 GT2, GT3 & GT3RS
Porsche 986 Boxster (1997-2004)
Porsche 996 (1997-2005)

REAR
Porsche 997 GT2, GT3 & GT3RS
Porsche 997 incl. Turbo
Porsche 718 Boxster/Cayman
Porsche 981 Boxster/Cayman
Porsche 986 Boxster (1997-2004)
Porsche 987 Boxster (2005-2012)
Porsche 987C Cayman (2005 - 2012)
Porsche 996 (1997-2005)

Please note: you will need 997 front fork arms to accommodate the adjustable bushes as they are wider than standard bush.
When you add this item to the basket you will be prompted with mandatory product you will need to add as well.

Both Adjustable and Non-Adjustable bush options are available to suit differing driving and performance requirements.

Please click 'Zoom in' to view the diagram (No 21)

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3602409961G

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0303247

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99634105318

99634105306

99634105307

99634105314

99634105317

99634194100

99634194101

38568

99634105319

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99634105320

The product you are viewing cross references to these numbers

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