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Your Vehicle
Porsche // 928 (1978-1995) // 928S2 4.7L 1984-86
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- 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
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Steering rack gaiter kit
TRW steering rack gaiter kit for Porsche 986 Boxster and 996 models fitted with the specified later steering racks. Accessories are included for the front axle's left and right sides.
One kit per car required
Fits
Porsche 986 Boxster 1997 - 2004
Porsche 996 1998 - 2005
Please note
Fitting Position: Front Axle left and right,
For OE Steering Rack No.: 996.347.011.06, 996.347.011.07, 996.347.012.07, 996.347.012.08
Inner Diameter 1: 12,3 mm, Inner Diameter 2: 52 mm, Height: 195,3 mm, With accessories
What This Product Does
The bellows cover the moving rack ends and inner steering joints, helping exclude moisture and road debris while accommodating steering movement.
Functions
- Shield covered steering components against contamination.
- Maintain a flexible protective enclosure as the rack moves.
- Help protect inner joints from exposure when correctly secured.
Symptoms of Fault
- Visible tears, punctures or cracking in the bellows.
- Loose attachment points or contamination beneath the gaiter.
- Moisture entering the covered joint area.
Knocking or steering play warrants inspection of the joints and related components rather than assuming the gaiter alone is responsible.
Why Replacement Matters
A damaged or unsecured gaiter leaves the enclosed components exposed. Renewing it restores the protective covering, but any existing joint wear also needs assessment.
FAQs
How many kits does a vehicle need?
One kit per car required.
How do I confirm suitability?
Match the fitted steering rack number against the four OE rack references above.
Is alignment needed afterwards?
Have the alignment checked if track rods or steering adjustment settings are disturbed during installation.
What should be inspected during replacement?
Check the exposed inner joints for contamination and excessive play before fitting the new bellows.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99634719104
The product you are viewing cross references to these numbers
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Steering Rack Gaiter - Left or Right Hand Side
Sold each - 2 required per car
Protect your Porsche steering system with this OE Match
Steering Rack Gaiter, designed for Porsche 928 models produced
between 1978 and 1995. Also known as a steering rack boot or rack bellows, the
gaiter plays a vital role in protecting the steering rack and inner track rod
joints from dirt, water, road debris and other contaminants.
Fits:
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Diagram ref no 2
Although a steering rack gaiter is a relatively simple component, it performs an essential function in preserving the longevity of the steering rack assembly. A damaged or split gaiter can allow moisture and debris to enter the steering system, leading to accelerated wear, corrosion and potentially costly steering rack repairs.
Replacing worn or damaged gaiters as soon as deterioration is detected helps maintain steering performance and protects expensive steering components.
What Does a Steering Rack Gaiter Do?
The steering rack gaiter forms a protective flexible seal around the steering rack and inner track rod assembly.
Its primary functions include:
- Protecting the steering rack from dirt and debris
- Preventing water ingress
- Protecting inner track rod joints
- Retaining lubrication within steering components
- Extending steering rack lifespan
- Supporting smooth steering operation
- Preventing premature wear
The gaiter flexes as the steering moves from lock to lock while maintaining protection of the internal steering components.
Why Do Steering Rack Gaiters Fail?
Steering rack gaiters are exposed to harsh road conditions, constant movement and environmental ageing.
Common causes of failure include:
- Age-related rubber deterioration
- Cracking and splitting UV exposure
- Road salt and contaminants
- Stone impact damage
- General wear and tear
- Heat exposure Incorrect installation
Once a gaiter becomes damaged, contaminants can quickly enter the steering rack area and accelerate wear.
When Should a Steering Rack Gaiter Be Replaced?
Steering rack gaiters should be inspected regularly during servicing and suspension maintenance.
Common signs of wear include:
- Visible cracks in the rubber
- Split or torn gaiters
- Grease leakage
- Water contamination inside the gaiter
- Perished rubber material
- Steering rack corrosion
- Damaged securing clips
- Excessive dirt accumulation around the steering rack
Replacement should be carried out immediately if damage is found to avoid costly steering rack repairs.
Why Replacement Matters
A damaged steering rack gaiter may seem insignificant, but it can lead to major steering system issues if ignored.
Benefits of replacement include:
- Protects expensive steering rack components
- Prevents dirt and water ingress
- Extends steering rack lifespan
- Protects inner track rod joints
- Maintains steering performance
- Reduces long-term repair costs
- Supports safe vehicle operation
- Ideal preventative maintenance item
For Porsche 928 owners, replacing worn gaiters is a simple and cost-effective way to preserve steering system reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92834719103
The product you are viewing cross references to these numbers
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 928 (1978 - 1982)
Porsche 928 S (1980 - 1986)
Porsche 928 S4 (1987 - 1991)
Porsche 928 GTS (1992 - 1995)
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92834719103
The product you are viewing cross references to these numbers