PWR 42-1091 Rack and Pinion Assembly

Reliable Hydraulic Rack and Pinion Assembly for Audi and Volkswagen

The PWR 42-1091 hydraulic rack and pinion assembly is engineered for precise steering control in select Audi and Volkswagen models. Designed to meet regular grade specifications, this component ensures consistent performance for vehicles like the Audi A4, A4 Quattro, Passat, and S4.

• Hydraulic rack and pinion type for smooth steering response
• Includes inner tie rods and gasket/seal for secure installation
• Two mounting holes for proper fitment without mounting hardware or brackets
• End-to-end length of 1021 mm with 2.9 total turns lock to lock
• Compatible inlet and outlet line fittings with female connections (14 mm inlet, 16 mm outlet)
• Steering input shaft diameter of 14.7 mm for accurate steering input transfer

Technical Details and Specifications

This PWR rack and pinion assembly (part number 42-1091) is designed specifically for hydraulic steering systems in Audi and Volkswagen vehicles. The assembly includes inner tie rods and a gasket or seal to maintain system integrity. It features two mounting holes but does not include mounting hardware or brackets, allowing for compatibility with factory components. The total steering turns from lock to lock is 2.9, providing responsive steering feel. The inlet and outlet line fittings are female, sized at 14 mm and 16 mm respectively, ensuring proper hydraulic fluid flow. The steering input shaft diameter measures 14.7 mm, matching OEM specifications for a precise fit.

Compatible Vehicles and Applications

This rack and pinion assembly is compatible with the following models:

• Audi A4
• Audi A4 Quattro
• Audi S4
• Volkswagen Passat

It is designed to replace worn or damaged hydraulic steering racks in these vehicles, restoring steering performance and safety.

Common Issues Addressed by This Rack and Pinion Assembly

• Steering play or looseness causing imprecise handling
• Hydraulic fluid leaks from worn seals or gaskets
• Difficulty in steering or increased effort due to internal wear
• Uneven or noisy steering operation
• Damaged or bent inner tie rods affecting alignment

Installation Notes and Tips

Installation of the PWR 42-1091 rack and pinion assembly requires removal of the old steering rack and proper alignment of the new unit. Since mounting hardware and brackets are not included, reuse factory components or source compatible hardware. Ensure all hydraulic line fittings are securely connected to prevent leaks. The included gasket or seal should be installed carefully to maintain hydraulic pressure. After installation, a professional wheel alignment is recommended to ensure optimal steering performance.

Quality Assurance and Warranty Information

PWR manufactures this rack and pinion assembly to meet OEM standards for fit and function. The part number 42-1091 undergoes quality checks to ensure durability and reliability in hydraulic steering applications. This product includes a gasket or seal to support leak-free operation. Warranty coverage details should be confirmed with the distributor or installer, as they may vary.