This is a replacement O-ring that seals the engine's vacuum pump to its mounting housing, specifically for Nissan Navara D40 and Pathfinder R51 models fitted with the YD25DDTI engine. Located between the pump and the cover it mounts to, this O-ring is critical for preventing oil leaks from this common failure point.
Due to constant heat cycles and exposure to engine oil, the original O-ring can become hard, brittle, and flattened over time, losing its ability to maintain a proper seal. The most common sign of a failure is a persistent oil leak appearing from around the vacuum pump area. Installing a new, quality O-ring is the correct fix to restore a leak-free seal.
This is a straightforward replacement for a competent DIY mechanic with basic tools. The primary challenge is often accessing the vacuum pump on the engine. It is recommended to have workshop cleaner or degreaser on hand to thoroughly prepare the mating surfaces before installing the new O-ring. To ensure a complete repair, any other gaskets disturbed during the job should also be replaced.
Please check vehicle fitment to confirm compatibility with your vehicle. Please contact us with your VIN details if you require further assistance to confirm fitment.
Choosing genuine Nissan parts ensures the quality and fit for your Nissan. Unlike some aftermarket alternatives, genuine Nissan parts are manufactured to exacting standards, using materials specifically designed to withstand the rigors of Australian conditions. Guaranteeing performance, service life, and reliability.
