Dorman 904-835 Vacuum Pump

Reliable Vacuum Pump for Volkswagen Beetle and Golf

The Dorman 904-835 vacuum pump is designed specifically for Volkswagen Beetle and Golf models, providing consistent vacuum pressure essential for emission control systems. Engineered with durable aluminum housing and a gear drive system, this vacuum pump ensures reliable operation without the need for additional mounting hardware or gaskets.

Key Features of the Dorman 904-835 Vacuum Pump

• Compatible with Volkswagen Beetle and Golf models
• Durable aluminum housing for long-lasting performance
• Gear drive system for efficient vacuum generation
• Includes a built-in relief valve for pressure regulation
• Barbed vacuum pump connector with 0.615 inch inside diameter inlet
• No pulley, mounting hardware, or gasket included
• Part number 904-835 for precise identification

Detailed Product Description

The Dorman 904-835 vacuum pump is a critical component in the emission control vacuum system of Volkswagen Beetle and Golf vehicles. Its aluminum housing offers corrosion resistance and strength, while the gear drive mechanism ensures steady vacuum output necessary for proper engine function. The integrated relief valve helps maintain optimal pressure levels, preventing potential damage to the vacuum system. The barbed connector and 0.615 inch inlet diameter allow for secure hose attachment, ensuring leak-free operation. This vacuum pump does not include a pulley, mounting hardware, or gasket, so those components must be sourced separately if needed.

Common Applications and Issues Addressed

• Restores vacuum pressure for brake boosters and emission control devices
• Resolves vacuum leaks causing rough idling or poor engine performance
• Eliminates issues with vacuum-operated components failing to engage
• Prevents check engine light triggers related to vacuum system faults
• Supports proper function of EGR valves and other emission control parts

Installation Notes and Tips

• Compatible with Volkswagen Beetle and Golf models; verify fitment before installation
• Ensure all vacuum lines are clean and free of debris before connecting
• Use appropriate mounting hardware and gaskets as they are not included
• Check the relief valve operation after installation to confirm pressure regulation
• Follow vehicle manufacturer torque specifications when securing the pump

Quality Assurance and Warranty Information

Dorman vacuum pumps are manufactured to meet or exceed OEM standards for fit and function. The 904-835 part undergoes rigorous quality control to ensure durability and reliable performance in Volkswagen Beetle and Golf vehicles. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.