BMW Valve Cover Gasket - Reinz 11127834111

Product Information

Application: For cylinders 6–10

This aftermarket valve cover gasket replaces OE 11127834111 and is designed to provide a reliable seal between the valve cover and cylinder head, preventing oil and vapor leaks. When new, the gasket is soft and flexible, but long-term exposure to engine heat causes the material to harden and lose sealing capability, leading to oil seepage or visible leaks.

Function: The valve cover gasket is a critical seal that ensures oil containment in the top end of the engine. Modern gaskets are typically made of rubber or elastomer compounds, with some reinforced for extra strength. Older engines may use cork gaskets, which are more installation-sensitive and require careful torque application.

Failure Symptoms:

• Age: Hardened, brittle gasket allowing oil to escape at the valve cover junction.
• Physical damage: Over-tightening or improper installation can crush the gasket, compromising its seal.
• Chemical damage: Exposure to incompatible sealants or chemicals can deteriorate the gasket material.
• Oil leaks: Visible seepage or streaks of oil down the cylinder head.
• Mysterious leaks: Oil residue appearing in unusual locations due to airflow around the engine bay.
• Air intake issues: Severe gasket failure can lead to check engine lights or poor engine performance caused by unmetered air entering or escaping.
• Burning oil smell: Oil dripping onto the exhaust manifold and burning off, producing a strong odor while driving.