This is a Genuine Nissan radiator header tank, also known as a coolant overflow bottle, designed specifically for the Thai-built Nissan Navara D40 with the YD25 engine. Located in the engine bay, this tank acts as the expansion reservoir for the cooling system, holding excess coolant as it heats up and expands.
Over time, constant engine bay heat cycles can cause the factory plastic tank to become brittle, leading to cracks, discolouration, and dangerous coolant leaks. Replacing a faulty header tank is essential for maintaining correct coolant levels and preventing engine overheating. This genuine part ensures perfect fitment and material quality, avoiding the risks of premature failure associated with lower-grade aftermarket tanks, which can lead to coolant loss and major engine damage.
Installation is a straightforward job for a competent home mechanic with basic tools, but care must be taken as the cooling system is pressurised and the fluid can be hot. When replacing the header tank, it is good practice to inspect the radiator cap, all coolant hoses, and hose clamps for any signs of perishing or damage. You will also require fresh, correct-specification coolant to top up and bleed the system after installation.
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.
