Genuine OEM Volkswagen sealing plug, part number N91131501. This component is designed to provide a secure, leak-proof seal for openings within the engine assembly, preventing fluid loss or contamination. It is manufactured to exact factory tolerances to ensure a precise fit and long-term durability under thermal and pressure cycles. Using genuine OEM sealing components is critical for maintaining system integrity and preventing premature failure caused by improper fitment or material degradation.