ATE Brake Master Cylinder Reservoir Grommet for BMW 1602/2002/2002tii and Audi 100/100 Quattro/200 (1967–1991)

This direct-fit ATE Brake Master Cylinder Reservoir Grommet supports brake-system service on the BMW 1602, 2002, 2002tii, 2500, 2800CS, 3.0CS, and 3.0S and additional models and Audi 100, 100 Quattro, 200, 200 Quattro, 4000 Quattro, 5000, and 5000 Quattro and additional models models listed below (1967–1991). It seals the connection between the brake-fluid reservoir and the master cylinder, with final compatibility determined by the vehicle’s exact brake equipment.

ATE-branded brake master cylinder reservoir grommets are engineered as direct-fit brake-system components for their listed applications, supporting correct braking operation, fitment, and serviceability at the installed location.

Technical Details

• Manufacturer: ATE
• Manufacturer part number: 390088
• OE/reference number: 34-31-1-121-911
• Part type: Brake Master Cylinder Reservoir Grommet
• Listed vehicle range: BMW 1602, 2002, 2002tii, 2500, 2800CS, 3.0CS, and 3.0S and additional models and Audi 100, 100 Quattro, 200, 200 Quattro, 4000 Quattro, 5000, and 5000 Quattro and additional models
• Listed model years: 1967–1991

Fitment & Compatibility

Use the fitment table below to confirm the exact year, make, model, and submodel before ordering. Brake-system equipment can vary within the same model year, so compare the installed component and reference number when possible.

PMB Performance can help verify the application when the vehicle has multiple brake packages. Provide the VIN or existing part number for support from a team with more than 20 years of brake-component experience.