This is a genuine Nissan radiator overflow bottle, designed as a direct replacement for the Nissan Navara D40 and Pathfinder R51. Located in the engine bay, this reservoir connects to the radiator and serves a critical function in the cooling system. It captures expanding coolant as the engine heats up and allows it to be drawn back into the system as it cools down, maintaining correct pressure and fluid levels.
Due to constant exposure to extreme heat cycles, the original plastic bottle can become brittle over time, leading to cracks and coolant leaks. A faulty cap can also prevent the system from holding pressure correctly. Visible cracks, coolant pooling beneath the bottle, or a persistently low coolant level are all signs that replacement is necessary to prevent engine overheating and potential catastrophic damage.
This is a straightforward replacement suitable for a competent DIY mechanic. Installation involves removing a few mounting bolts and swapping the main hose connection. You will need the correct type of engine coolant to top up the system after installation. We also recommend taking this opportunity to inspect all radiator hoses for signs of perishing or wear.
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.
