The HKS BMW Type 4 oil filler cap cover is a replacement-style cap designed for BMW Type 4 oil fill locations. It provides a clean, finished appearance at the engine oil fill and serves as a direct cosmetic upgrade or cover for the factory filler area. Offered by HKS as a simple bolt-on change to improve the under-hood look without altering function.
HKS BMW Type 4 Oil Filler Cap Cover