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Details
| Specification | Value |
|---|---|
| Brand | BOSCH |
| MPN | ks00000171 |
| Pressure [bar] | 130 bar |
| Operating Mode | HY |
OE/OEM numbers (2)
Search by this OE number to find compatible parts
- VW—4H0 145 156 C
- AUDI / VW—4H0 145 156 N
Where this part fits
Original-fit position for OE 4H0145156C. The red ring marks where this part installs on the vehicle.

About this product
The BOSCH Hydraulic Pump Steering (K S00 000 171) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Pressure [bar]: 130 bar, Operating Mode: Hybrid, Valve Type: Nylon, Rotation Direction: 0, Pump Type: Copper. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit AUDI models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 4H0 145 156 C, 4H0 145 156 N, K S01 000 141. Matching these numbers confirms a like-for-like replacement with no loss of function. BOSCH is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
About BOSCH
Robert Bosch GmbH, founded in 1886 in Stuttgart, Germany, is one of the world's largest automotive parts suppliers. Bosch specialises in braking systems, fuel injection, spark plugs, alternators, and electronic engine management. As an OE supplier to virtually every major car manufacturer, Bosch parts meet or exceed original equipment specifications. With over 130 years of engineering innovation, choosing Bosch means choosing proven reliability backed by extensive research and development.
Suitable cars
Equivalent products (1)
Hydraulic Pump Steering BOSCH K S00 000 171 — compatible car models
| Car models | AUDI: A8 D4 (4H2, 4H8, 4HC, 4HL) |
|---|---|
| Engines | 3.0 TFSI quattro |
| Year of manufacture | 2009-2019 |
| Manufacturer article number (MPN) | K S00 000 171 |
| OE part numbers | 4H0 145 156 C, 4H0 145 156 N |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
BOSCH ks00000171 . Operating Mode: HY. Pressure [bar]: 130 bar. Pump Type: 4. Rotation Direction: 0. Valve Type: 14
- 1x Hydraulic Pump Steering
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Hydraulic Pump Steering compatible with my car?
This Hydraulic Pump Steering fits AUDI vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this BOSCH Hydraulic Pump Steering have?
This BOSCH Hydraulic Pump Steering has the following specifications: Pressure [bar]: 130 bar; Operating Mode: HY; Valve Type: 14; Rotation Direction: 0; Pump Type: 4. Check the full specifications table above for complete details.
What OE part numbers does this Hydraulic Pump Steering replace?
This Hydraulic Pump Steering replaces OE part numbers: 4H0 145 156 C, 4H0 145 156 N. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Hydraulic Pump Steering cost?
This BOSCH Hydraulic Pump Steering is available for £389.99. Hydraulic Pump Steering prices vary depending on brand, specifications, and vehicle compatibility. BOSCH parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Hydraulic Pump Steering?
Regular inspection of your Hydraulic Pump Steering is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Hydraulic Pump Steering?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Hydraulic Pump Steering fitted by a professional mechanic.
Can I use this part as a replacement for OE 4H0 145 156 C?
Yes, this BOSCH Hydraulic Pump Steering is a direct replacement for OE part number 4H0 145 156 C. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the BOSCH K S00 000 171 the same as the BOSCH K S00 000 081?
No, while both are Hydraulic Pump Steering parts, they are different products. The BOSCH K S00 000 171 has Pressure [bar]: 130 bar, Operating Mode: HY, Valve Type: 14. The BOSCH K S00 000 081 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.