The engine oil filler cap seals the opening used to add oil to the crankcase, maintaining proper crankcase pressure and preventing oil splatter and contaminant entry. A loose, damaged, or missing cap can lead to oil leaks, pressure loss, and the ingress of dirt and moisture, which compromises engine lubrication. ECT AutoCore Trading supplies OEM-specification oil filler caps with secure sealing gaskets and robust threads. Our caps ensure a perfect seal under variable engine temperatures and pressures, safeguarding oil cleanliness and contributing to the integrity of the engine's closed lubrication system.