Parts for your 2005 Nissan Navara-Thermostat

2005 Nissan Navara Thermostat – Purpose, Care, and When to Replace

Yes, a thermostat is fitted to the 2005 Nissan Navara. Nissan’s Factory Service Manuals for the D22 and D40 series (Cooling System section) and the Nissan electronic parts catalogue list a wax‑pellet engine coolant thermostat mounted in the water outlet housing, making it a standard and relevant component on this ute.

The thermostat’s job is to get the engine up to operating temperature quickly, then hold it steady while driving, towing, or idling on a hot day. It stays closed on cold start to help the motor warm up, then opens progressively to send coolant through the radiator once the coolant reaches its set temperature. When it’s working right, the Navara warms up promptly, the cabin heater works properly, fuel economy is decent, and the temperature gauge sits calmly near the middle.

Like any cooling system part, a thermostat can wear out. Stuck closed can cause overheating