Parts for your 2005 Mitsubishi Pajero-Radiator

2005 Mitsubishi Pajero Radiator — Purpose, Care and Replacement

Yes, a radiator is absolutely fitted and relevant on the 2005 Mitsubishi Pajero. Mitsubishi’s official Workshop Manual for NM/NP (V60 series) models, Group 14: Cooling System, details the engine’s liquid cooling circuit with a crossflow aluminium radiator. The Mitsubishi ASA electronic parts catalogue for the 2005 Pajero also lists the radiator assembly and cap across both 3.2 Di‑D (4M41) and 3.8 V6 (6G75) engines. Independent manuals (e.g., Gregory’s/Haynes, Cooling System chapters) back this up.

On a 2005 Pajero, the radiator’s job is to keep the engine at the right operating temperature by moving heat from the coolant to the outside air. Many automatic models also use an in‑tank transmission cooler, so that same radiator helps manage gearbox temps too. In Aussie and Kiwi conditions—towing, sand, long hill climbs, corrugated roads—a healthy radiator is vital to avoid overheating, warped heads, or transmission drama.

As part of servicing, it’s smart to keep the cooling system in top nick:

• Coolant: Use a Mitsubishi‑approved long‑life ethylene‑glycol coolant (often HOAT/LLC). A 50/50 mix with demineralised water is the usual spec unless using pre‑mix. Capacity is roughly 9–11 litres depending on engine and heater configuration—check the handbook for your exact setup.
• Intervals: Replace coolant every 2–4 years or 40,000–60,000 km, unless your service schedule specifies a different interval for long‑life coolant. Off‑road or heavy towing? Lean to the earlier side.
• Inspection: Look for leaks, crusty green/white staining, swollen hoses, soft spots, or damp tanks. Check the radiator cap seal and spring—weak caps cause boiling and coolant loss.
• Cleanliness: Keep the fins clear of bugs, seeds and mud. Blow out with low‑pressure air from the engine side outwards. Avoid bending fins.
• AT models: Watch for pink/milky ATF (sign of cooler failure). If towing often, consider a separate auxiliary trans cooler to reduce load on the radiator.
• Replacement: Choose quality cores with OE‑style fittings. When installing, fit new hoses and clamps, a fresh cap, and consider the thermostat if it’s old.
• Bleeding: Refill slowly, heater on hot, and burp the upper hose. Top the overflow to the mark, then recheck level after a proper warm‑up drive.

Get those basics right and the Pajero’s cooling system will handle the heat, the desert runs, and the school run without breaking a sweat.

What coolant should be used and how much does it take?

Use a Mitsubishi‑approved long‑life ethylene‑glycol coolant (HOAT/LLC), mixed 50/50 with demineralised water unless buying pre‑mix. Depending on engine and heater setup, the system typically holds around 9–11 litres. Always confirm the exact capacity in the owner’s manual or service data for the specific engine.

How often should the radiator be flushed on a 2005 Pajero?

For normal use, every 2–4 years or 40,000–60,000 km is common guidance. If the vehicle tows, sees lots of sand or high‑load driving, shorten the interval. Replace the radiator cap and thermostat if they’re ageing, as they’re cheap insurance against overheating.

What are the signs the radiator needs replacement?

Watch for overheating, coolant smell, visible leaks, green/white crust on tanks or seams, discoloured coolant, or repeated low coolant levels. For autos, milky ATF can indicate an internal cooler failure. Fins falling apart or multiple blocked tubes are also signs it’s time for a new unit.