Dorman 904-822 Vacuum Pump

Overview of the Dorman 904-822 Vacuum Pump for BMW 335d and X5

The Dorman 904-822 vacuum pump is designed specifically for select BMW models, including the 335d and X5. Engineered with an aluminum housing and gear drive system, this vacuum pump supports the emission control vacuum system to maintain optimal engine performance.

• Compatible with BMW 335d and X5 models
• Durable aluminum housing for lightweight strength
• Gear-driven vacuum pump for reliable operation
• Barbed vacuum pump connector for secure hose attachment
• 1/2 inch vacuum pump inlet size
• No pulley or gasket included
• Includes one vacuum pump per package

Detailed Product Description

The Dorman 904-822 vacuum pump is constructed with a robust aluminum housing that offers corrosion resistance and durability under demanding engine conditions. Its gear-driven design ensures consistent vacuum generation, which is critical for the emission control system's proper function. The barbed connector provides a secure fit for vacuum lines, minimizing the risk of leaks. This vacuum pump features a 1/2 inch inlet, compatible with the vacuum hoses used in BMW 335d and X5 models. Note that this unit does not include a pulley or gasket, so those components must be sourced separately if needed.

Common Applications and Problem Resolution

• Restores vacuum pressure for brake boosters and emission control systems
• Replaces failing or noisy vacuum pumps in BMW 335d and X5 vehicles
• Addresses vacuum leaks that cause engine performance issues
• Helps resolve check engine light codes related to vacuum system faults
• Supports proper operation of turbocharger wastegate actuators and other vacuum-operated components

Installation Notes and Tips

When installing the Dorman 904-822 vacuum pump, ensure the mating surfaces are clean and free of debris. Since the pump does not include a gasket, use a compatible seal to prevent vacuum leaks. Verify that the gear drive system meshes correctly with the engine components to avoid premature wear. Properly secure the barbed vacuum connector hose to maintain a tight seal. It is recommended to inspect related vacuum lines and components during installation for any signs of damage or wear.

Quality Assurance and Warranty Information

Dorman manufactures the 904-822 vacuum pump to meet or exceed OEM specifications for fit and function on BMW 335d and X5 models. The aluminum housing and gear drive system are designed for durability and consistent performance. This part is backed by Dorman's standard warranty coverage, providing confidence in its reliability and longevity when installed according to manufacturer guidelines.