Original Quality Oil Filter Housing Cap Aluminum Carbon Red 06L115401S. for B9

Aluminum oil filter housing cap finished in carbon red coating, engineered to replace the original component on B9 vehicles. Solid aluminum construction delivers far superior mechanical strength compared to plastic factory caps, resisting cracking under thermal cycling and pressure fluctuations within the engine lubrication system. The carbon red outer coating provides reliable scratch resistance and anti-corrosion protection, guarding the surface against road debris, oil stains and long-term oxidation during vehicle operation. Threads and sealing mating surface are precisely machined to match OEM geometry, ensuring smooth assembly and tight contact with the rubber seal ring.

Proper sealing performance holds steady oil pressure inside the oil filter housing while the engine runs, preventing oil seepage at the filter cap position. Strict dimensional inspection is implemented for every unit to guarantee seamless fitment during maintenance without extra adjustment. Plastic oil filter caps commonly become brittle after long service time. Heat aging will create tiny cracks and lead to engine oil leaks, which may trigger low oil pressure warnings and damage key engine parts. Upgrading to this aluminum carbon red oil filter housing cap improves durability greatly, maintains stable lubrication system sealing and lowers the risk of unexpected oil leakage. It serves as a premium aftermarket spare part for routine maintenance and engine repair of B9 models.