Dorman 904-817 Vacuum Pump

Reliable Vacuum Pump for Audi and Volkswagen Models

The Dorman 904-817 vacuum pump is designed to support the emission control system in select Audi and Volkswagen vehicles. Engineered with an aluminum housing and gear-driven mechanism, this vacuum pump ensures consistent performance for models like the Audi TT RS Quattro and Volkswagen Golf SportWagen.

• Durable aluminum housing for lightweight strength
• Gear-driven vacuum pump drive system for reliable operation
• Barbed vacuum pump connector for secure hose attachment
• 1/2 inch vacuum pump inlet size for compatibility
• Includes one vacuum pump unit, pulley and gasket not included

Product Details and Specifications

The Dorman 904-817 vacuum pump features a gear drive system that provides steady vacuum pressure essential for emission control and other vacuum-operated components. Its aluminum housing offers corrosion resistance and durability under engine bay conditions. The barbed connector ensures a tight fit with vacuum lines, minimizing leaks. This pump does not include a pulley or gasket, so those components must be sourced separately if needed. The 1/2 inch inlet size is standard for the compatible Audi and Volkswagen models, including the Beetle, Beetle Cabrio, Golf, Jetta, Passat, and TT RS Quattro.

Compatible Vehicles and Applications

This vacuum pump is compatible with the following makes and models:

• Audi Beetle and Beetle Cabrio
• Volkswagen Golf and Golf SportWagen
• Volkswagen Jetta and Passat
• Audi TT RS Quattro

It is primarily used in the emission control vacuum system to maintain proper vacuum pressure for brake boosters and other vacuum-dependent components.

Common Issues Addressed by This Vacuum Pump

• Loss of vacuum pressure affecting brake booster performance
• Emission control system malfunctions due to vacuum leaks
• Engine stalling or rough idling caused by vacuum pump failure
• Check engine light triggered by vacuum system faults
• Reduced fuel efficiency linked to emission control problems

Installation Notes and Tips

When installing the Dorman 904-817 vacuum pump, ensure the vacuum lines are free of cracks and securely connected to the barbed connector. Since the pulley and gasket are not included, verify the condition of existing components or acquire replacements as needed. Proper alignment of the gear drive system is critical for optimal pump operation. It is recommended to consult the vehicle’s service manual for torque specifications and installation procedures specific to the Audi or Volkswagen model.

Quality Assurance and Warranty

Dorman vacuum pumps are manufactured to meet or exceed OEM standards for fit and function. The 904-817 part number undergoes rigorous quality control to ensure durability and reliable performance in emission control systems. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.