Porsche Cayenne 955 & 957 Steering Rack Repair
Professional assessment, repair and reconditioning for right-hand-drive Porsche 955 and 957 Cayenne RHD hydraulic steering with standard or speed-dependent assistance. UK customers, garages, restorers and trade enquiries welcome.
Model and Steering-System Coverage
Years: 2003–2010
955 and 957 Cayenne RHD hydraulic steering with standard or speed-dependent assistance. We repair the customer’s original steering rack where suitable and can discuss correctly identified reconditioned supply or fitting.
Verified RHD OE number family
955 347 012 21 — standard assistance, option 1N1 • 955 347 012 19 / 30 / 31 — Servotronic family, option 1N3
Standard power assistance and speed-dependent Servotronic racks are separate families. The option code and label must be supplied.
Common Steering Rack Faults
Leaks and seal wear
Fluid around the rack, gaiters or pipe connections can indicate seal deterioration, corrosion or internal wear.
Play, knocks or wandering
Free play, knocking, poor self-centring or vague steering requires the rack, mounts, joints and surrounding components to be assessed.
Uneven or heavy assistance
Heavy steering, uneven assistance, noise or judder can involve the rack, pump, fluid or contamination. Manual racks are assessed for wear, play and internal condition.
Our Repair and Reconditioning Process
1. Identify
We check the VIN, registration, build year, complete rack label, RHD specification and relevant option codes.
2. Assess and repair
The unit is inspected for wear, corrosion, contamination and damage before suitable repair or reconditioning is agreed.
3. Test and return
The completed rack is tested, prepared for refitting and supplied with the applicable Pro Power Steering warranty.
What to Send for Correct Identification
Send the registration, full VIN, model and build year, clear photographs of the entire rack label and all numbers, plus details of the symptoms, leaks, noises and any previous steering work. Never order from a shortened number alone.
