This is a high-quality NPW replacement viscous fan clutch hub, designed as a direct-fit solution for Spanish-built (VSK) Nissan Navara D40 and Pathfinder R51 models fitted with the YD25 diesel engine. A correctly functioning viscous hub is critical for maintaining stable engine temperatures, especially when towing or tackling low-speed off-road tracks.

The viscous hub is located at the front of the engine, bolting directly to the water pump pulley. Your engine's cooling fan, in turn, attaches to this hub. It contains a silicone-based fluid that engages and disengages the fan based on the air temperature passing through the radiator, allowing the fan to spin faster when needed for cooling and slower to save power when it's not.

Over time, the internal silicone fluid can break down or leak due to constant heat cycles and age. This prevents the hub from engaging correctly, leading to engine overheating at low speeds or a loud, roaring fan noise that doesn't vary with engine RPM. Replacing a faulty hub with a quality NPW unit restores the cooling system's efficiency and prevents potentially serious engine damage.

Product Features

• Quality Japanese Engineering: Manufactured by NPW, a respected Japanese specialist in OE-quality engine components, ensuring reliable performance.
• Prevents Overheating: Engineered for correct engagement to provide optimal cooling performance. Using an inferior hub can lead to engine overheating, or seizure of the hub which causes excessive noise, poor fuel economy, and potential radiator damage.
• Installation Note: Replacement is a straightforward to moderate workshop job. Access is gained by removing the fan shroud, and special tools may be needed to hold the pulley while undoing the nuts.
• Essential Checks: While replacing the hub, it is a good time to inspect the fan blade for cracks and the serpentine belt for wear. The water pump and thermostat are also commonly replaced at the same time.

Vehicle Fitment

• 2005-2015 D40 Navara Ute, Ute Dual Cab, YD25DDTI
• 2005-2013 R51 Pathfinder Wagon, YD25DDTI

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.

Genuine Nissan Product Alternative

For those who prefer to use original equipment, Patrolapart also stocks the Genuine Nissan equivalent for this part. Using a Genuine Nissan part ensures factory-spec fitment and performance. Please contact our team if you need help finding the correct genuine part number for your vehicle.

The team at Patrolapart are experts with years of experience with NPW products and can help with any enquiries about the brand, its product range, and all Nissan 4x4 parts. Give us a call on 03 9735 9099.