Power Steering Pump 5Z0422154
The 5Z0422154 Power Steering Pump is an OE-specification hydraulic vane pump designed for Volkswagen Group hydraulic power steering systems. Driven by the engine through the accessory belt, the pump continuously supplies pressurized hydraulic fluid to the steering gear, ensuring smooth steering response, reduced steering effort, and reliable vehicle handling under various driving conditions.
Manufactured to OE specifications, this Power Steering Pump 5Z0422154 for VW features a precision-machined vane rotor, high-strength aluminum housing, and premium sealing components to provide stable hydraulic output, low operating noise, and long service life. Designed as a direct replacement for the original equipment unit, it restores the vehicle's original steering performance and driving comfort.





Key Features
OE-quality replacement for Power Steering Pump 5Z0422154 for VW JETTA 2004
Hydraulic vane pump design
Stable hydraulic pressure for consistent steering assistance
Clockwise rotation
High-strength aluminum alloy housing
Premium shaft sealing system for leak prevention
Factory pressure-tested and leak-tested
Direct OE replacement for easy installation
Long service life and reliable performance
Technical Specifications
|
Item |
Specification |
|
Product Model |
5Z0422154 |
|
Pump Type |
Vane Pump |
|
Operating Mode |
Hydraulic |
|
Rotation Direction |
Clockwise |
|
Pulley |
Without Belt Pulley |
|
Reservoir |
Without Reservoir |
|
Hydraulic Ports |
2 |
|
Operating Pressure |
90–100 bar |
|
Outlet Thread |
M16 × 1.5 |
|
Housing Material |
Aluminum Alloy |
Note:Operating pressure varies slightly depending on OE supplier and application. Some aftermarket versions are rated at 90 bar, while others are calibrated to 100 bar.
Structural Composition
Pump Housing: High-strength die-cast aluminum housing for durability and efficient heat dissipation.
Rotor and Vane Assembly: Precision-machined rotor and sliding vanes provide stable hydraulic pressure.
Cam Ring: Optimized cam profile improves volumetric efficiency and reduces internal wear.
Drive Shaft Assembly: Transfers engine torque to the internal pumping mechanism.
Bearing Assembly: Low-friction bearings ensure smooth operation and extended service life.
Shaft Seal System: High-quality oil seals minimize hydraulic fluid leakage.
Hydraulic Inlet and Outlet Ports: OE-standard hydraulic connections for direct installation.
Compatible Vehicle Models
|
Brand |
Model |
Year Range |
|
Volkswagen |
Polo Sedan |
2003–2012 |
|
Volkswagen |
Polo Hatch (Brazil) |
2007–2012 |
|
Volkswagen |
SpaceFox (RA) |
2006–2010 |
|
Volkswagen |
SportVan (RA) |
2006–2010 |
|
Volkswagen |
Suran |
2006–2010 |
Note: This pump was originally installed on vehicles produced mainly for the Brazilian, Mexican, Argentine, Chinese, and South African markets. Always verify compatibility using the VIN number and OEM part number before installatio
Installation and Usage Notes
Disconnect the battery before installation.
Inspect the steering rack, hydraulic hoses, and reservoir for contamination or wear.
Flush the hydraulic system if the previous pump failed internally.
Use only the power steering fluid specified by the vehicle manufacturer.
Tighten all hydraulic fittings according to OE torque specifications.
Bleed the steering system thoroughly after installation.
Check for leaks and abnormal operating noise.
Verify steering assistance during the initial road test.
Recheck the hydraulic fluid level after the first test drive.
Always verify compatibility using the VIN number and OEM part number before installation.












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A: We are based in Shanghai, China, start from 2004,sell to Domestic Market(55.00%),North America(10.00%),Central
America(10.00%),South America(7.00%),Eastern Europe(4.00%),Mid East(4.00%),Western Europe(4.00%),Southeast Asia(2.00%),Eastern
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A: Always a pre-production sample before mass production;
Always final Inspection before shipment;
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A: Auto Electrical Systems,Auto Engine Systems,Auto Steering Systems,Auto Suspension Systems,Auto Transmission Systems
Q: Why should you buy from us not from other suppliers?
A: Changhui group has over 4 0 years' experience in manufacturing auto electrics & electronics, has QC and OEM service capability. 40 years' industry professional accumulation made it to be automotive expert in auto electrics, electronics & EPS.
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