This CORTECO oil filler cap, identified by part code 023940P, is designed to provide a reliable and secure seal for your vehicle's engine oil system. Manufactured by CORTECO, a trusted name in automotive parts, this cap ensures that oil is contained within the engine, preventing leaks and contamination. Its robust construction is built to withstand engine bay temperatures and pressures, offering long-lasting performance. Proper sealing is crucial for engine health, and this cap meets high standards for fit and function. Easy to install, it's a direct replacement for your original cap.