Elring 198.770 Engine Valve Stem Oil Seal

Reliable Engine Valve Stem Oil Seal for BMW and Rolls-Royce

The Elring 198.770 engine valve stem oil seal is designed to provide precise sealing performance for select BMW and Rolls-Royce models. Manufactured from durable FPM (fluoride rubber), this seal ensures effective oil control and long-lasting reliability under demanding engine conditions.

• Material: FPM (fluoride rubber) for high resistance to heat and chemicals
• Inside Diameter: 10.0 mm for accurate fitment
• Outside Diameter: 23.0 mm ensuring proper sealing surface
• Thickness: 16.0 mm for optimal sealing depth
• Valve Stem Diameter: 6 mm compatible with specified engine valve stems

Technical Details and Material Benefits

The Elring 198.770 valve stem oil seal is constructed from FPM, a fluoride rubber known for its excellent resistance to high temperatures, oils, and automotive fluids. This material choice helps maintain seal integrity over time, reducing the risk of leaks and engine contamination. The precise dimensions—10.0 mm inside diameter, 23.0 mm outside diameter, and 16.0 mm thickness—are engineered to match the valve stem diameter of 6 mm, ensuring a secure and effective seal within the valve train assembly.

Compatible BMW and Rolls-Royce Models

This engine valve stem oil seal is compatible with a range of BMW models including the 545i, 550i, 645Ci, 650i, 745i, 750i, 760i, M5, M6, and their respective variants such as xDrive and Gran Coupe versions. It also fits Rolls-Royce models like the Phantom and SUVs including the X5, X6, and X7. Using the Elring 198.770 ensures proper fitment and performance for these specific vehicles.

Common Applications and Problem Resolution

• Prevents oil leaks around the valve stem area
• Reduces valve train contamination from oil seepage
• Maintains engine oil pressure and efficiency
• Helps avoid premature valve guide wear
• Supports consistent engine performance and emissions control

Installation Notes and Tips

When installing the Elring 198.770 valve stem oil seal, ensure the valve stem and surrounding surfaces are clean and free of debris. Use appropriate tools to avoid damaging the seal during installation. Verify the seal orientation matches manufacturer specifications to maintain proper sealing function. It is recommended to inspect related valve train components for wear during replacement.

Quality Assurance and Warranty

Elring manufactures the 198.770 valve stem oil seal to meet stringent automotive standards, ensuring durability and reliable sealing performance. While specific warranty details are not provided, Elring products are generally backed by quality control processes consistent with OEM requirements.