Steering Racks
Fits:
Porsche Boxster 986 1997-04
Porsche 996 1997-04
Right Hand Drive Cars (like UK)
The most common power steering faults are:
- Leaking power steering
- Torn Gators
- Hard to steering when idling
- Hard to steering one-way
- Steering-Wheel not self-centering
- Noise when Idling
- Noise when steering
- Judders when steering
- Loss of all power in steering
- Semi-Loss of power in steering
- Electric steering problems
Above are just some of the problems our customers are faced with on a day-to-day basis with their power steering units.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99634701211
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- 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
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Fits:
Porsche Boxster 986 1997-04
Porsche 996 1997-04
Right Hand Drive Cars (like UK)
We strongly recommend replacing the power steering pump at the same time as the steering rack. Swarf (metal particles) in the power steering system can circulate and cause damage to both components. If you choose to replace only the steering rack and, upon return of your exchange unit, we discover that the rack bar is scored or contaminated with swarf, this indicates that debris is present in the system. In such cases, we advise replacing the pump as well.
Please note: if we have advised that there is swarf in the system and you choose not to replace both components, any future warranty claims related to this issue will not be valid.
The most common power steering faults are:
- Leaking power steering
- Torn Gators
- Hard to steering when idling
- Hard to steering one-way
- Steering-Wheel not self-centering
- Noise when Idling
- Noise when steering
- Judders when steering
- Loss of all power in steering
- Semi-Loss of power in steering
- Electric steering problems
Above are just some of the problems our customers are faced with on a day-to-day basis with their power steering units. We can replace your old unit with a Reconditioned unit. If we don't have a replacement available, we can take in your own unit and recondition it for you. Where a new unit can cost £1000's we can recondition/supply reconditioned units at a fraction of this price!
All reconditioned racks come with 1 Year or 12,000 miles warranty!!
PLEASE NOTE:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99634701211
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- 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
Shop Securely
12 Month Warranty
Worldwide Delivery
Express Delivery
Free delivery
The steering rack is a vital part of steering system, converting steering wheel movement into precise control of the front wheels. Operating through a rack-and-pinion mechanism, the pinion gear on the steering column engages a toothed rack, translating rotation into lateral motion that turns the wheels. In power-assisted models, hydraulic or electric support reduces effort, delivering smooth, responsive, and accurate steering performance.
Fits:
Porsche Boxster 986 1997 - 2004
Porsche 996 1997 - 2004
Left Hand Drive Cars (like Europe)
Diagram ref no 1
• Position on Vehicle: Front steering rack assembly (LHD), connects the steering column to the tie-rods and front suspension – replacing the full rack unit including hydraulic or manual assist elements.
• Cross-Reference / Superseded Numbers: 996 347 011 11, also cross-references 99634701110 and 99634701107
• Typical Fault Symptoms: Leaking power-steering fluid, torn bellows, heavy or unresponsive steering at idle, non-returning steering wheel, noise when steering, partial loss of hydraulic power.
• Applications & Purpose: Ideal for vehicles where the original steering rack displays play, leakage or handling degradation. Using a new rack ensures secure fitment, proper steering geometry, fault-free assist and long-term durability.
Steering rack integrity is critical for accurate directional control, driver feedback and safe vehicle operation. Worn or leaking racks compromise the steering feel, introduce play, impair self-centering and may lead to erratic handling. Replacing with a new unit restores alignment, improves driver confidence and protects other steering components from premature wear.
When & why to replace:
• Observable fluid leak or torn boots on the steering rack.
• Heavy or unresponsive steering when idling or in low-speed manoeuvres.
• Steering wheel does not return properly after turning or shows play.
• Unusual noises when steering or juddering through front wheels.
• During any front-end service where removal of steering rack offers convenience.
• High-mileage vehicle or original rack still in use and nearing end of service life.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99634701111
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- 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
Shop Securely
12 Month Warranty
Worldwide Delivery
Free delivery
Porsche Steering Racks | Design911 Precision Steering Assemblies for Control & Performance
The steering rack is the heart of your Porsche’s steering system — translating driver input from the steering wheel into precise directional movement of the wheels. It’s a critical component that ensures responsive handling, stability, and control under all driving conditions. Whether your Porsche uses a hydraulic, manual, or electric power steering setup, maintaining a smooth and accurate rack assembly is essential for both performance and safety.
At Design911, we supply a complete range of steering racks, including hydraulic, electric, and manual systems for both classic and modern models. Each unit is built to high engineering standards, providing exceptional steering feel, precision, and reliability. Perfect for routine servicing, performance restoration, or full rebuilds, our racks ensure your Porsche handles exactly as it was designed to — sharp, smooth, and predictable.
What Do Steering Racks Do?
The steering rack converts the rotational motion of the steering wheel into linear movement, controlling the vehicle’s front wheels for directional accuracy.
Core Functions:
• Transfer steering input into smooth, precise wheel movement.
• Work in conjunction with the power steering system for ease of control.
• Maintain correct wheel alignment and tracking.
• Provide balanced feedback and road feel.
• Ensure stability and steering accuracy at all speeds.
A properly functioning steering rack delivers confidence-inspiring handling — from high-speed motorway cruising to tight cornering on track.
Why Do Steering Racks Fail or Degrade?
Steering racks experience constant pressure, movement, and exposure to heat and contaminants, leading to gradual wear over time.
Common Causes of Failure Include:
• Seal wear leading to hydraulic fluid leaks.
• Corrosion or pitting on internal rack surfaces.
• Play or looseness in steering due to worn bushings or joints.
• Power steering fluid contamination causing internal damage.
• Age-related degradation in gaskets or mounts.
When steering racks begin to fail, symptoms include excessive play, vibration, fluid leaks, uneven steering effort, or knocking noises — all signs that replacement or refurbishment is required.
Why Replace or Upgrade Your Porsche Steering Rack?
Replacing or upgrading your steering rack restores handling precision, stability, and steering feedback. Modern or performance-oriented replacements offer improved durability and response for both road and motorsport use.
Key Benefits:
• Restores sharp, responsive steering performance.
• Eliminates fluid leaks and unwanted play.
• Improves road feel and vehicle stability.
• Available in manual, hydraulic, and electric configurations.
• Fits Porsche 911, 944, 968, Boxster, Cayman, Panamera, and Cayenne models.
• Ideal for restoration, maintenance, or track preparation.
Design911’s Porsche steering racks are precision-engineered to deliver the performance, feedback, and control Porsche owners expect — ensuring reliability on every journey.
Highlights
• Premium Porsche steering racks for all models.
• Precision-engineered for strength, alignment, and feedback.
• Available in hydraulic, manual, and electric variants.
• Restores precise steering control and feel.
• Constructed from corrosion-resistant, high-grade materials.
• Perfect for maintenance, upgrades, or restorations.
