This is a genuine VICTOR REINZ oil filler cap, part number 71-12488-00. Designed to provide a tight and reliable seal for your engine's oil reservoir, this cap is crucial for maintaining proper engine lubrication. A faulty or missing oil filler cap can lead to oil leaks, contamination of the engine oil by dirt and debris, and potential damage to engine components. This VICTOR REINZ cap is manufactured to meet stringent quality standards, ensuring a perfect fit and long-lasting performance. Replacing your oil filler cap with this part from VICTOR REINZ is a simple yet effective way to ensure the integrity of your engine's oil system. It helps to keep contaminants out and oil in, contributing to the overall health and longevity of your vehicle's engine.