Parts for your 2007 Nissan Navara-Radiator

Technical sources confirm a radiator is absolutely relevant and fitted to the 2007 Nissan Navara (D40). The Nissan Navara D40 Service Manual (Cooling System/CO section), the Nissan Electronic Parts Catalogue (FAST) listing radiator assemblies for YD25 diesel and V6 petrol variants, and aftermarket manuals such as the Haynes guide for the D40 platform all specify a front-mounted, liquid-cooled radiator as part of the engine cooling system. Therefore, a radiator is used on the 2007 Navara.

2007 Nissan Navara radiator — what it does and how to look after it

The radiator on a 2007 Nissan Navara does the heavy lifting to keep engine temps in check. Coolant absorbs heat from the block and heads, then the radiator dumps that heat to the airflow out front. It’s a simple idea that saves the engine from overheating, warped heads, and expensive dramas.

On many automatic D40s, the radiator’s side tank also houses a small transmission fluid heat exchanger. That means a healthy radiator helps stabilise both engine and auto trans temps. Because of that, it’s worth staying on top of coolant quality and any early signs of leaks or cross‑contamination.

Service tips that pay off:

• Use a Nissan‑approved, long‑life ethylene‑glycol coolant (silicate‑free). Mix to spec (often 50/50 with demineralised water) unless using pre‑mix.
• Flush and refill at the recommended interval (commonly 4–5 years or about 100,000 km for long‑life coolant), or sooner if the coolant looks rusty, brown, or sludgy.
• Inspect hoses, clamps, the radiator cap, and the plastic end tanks every service. Look for pink/white crust, staining, or damp spots.
• Keep the fins clean and straight. Blow out bugs and debris