Mitsubishi L200 Radiator: Specs, Fitment & Common Faults

A genuinely useful, specific diagnostic clue: solid radiator hoses, boiling in the header tank, and temperature dropping with the heater on full together point toward a stuck thermostat rather than a leak.

Illustration for editorial purposes

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Mitsubishi L200 Radiator: OEM Part Number

Manual gearbox, all engines	Standard radiator with no transmission cooling circuit
Automatic/CVT, all engines	A dedicated transmission fluid cooler is fitted — either built into the radiator's tank or as a separate unit connected into the coolant circuit depending on exact model and generation — confirmed as a genuinely different radiator/cooling setup from the manual version, not interchangeable without the correct cooling circuit

Accuracy note: genuinely worth knowing: radiator core size and construction can differ between petrol and diesel L200 engines, and again between manual and automatic gearboxes where the automatic needs an integrated oil cooler circuit — confirm your exact engine code and transmission before ordering.

Mitsubishi L200 Radiator: The Part That Keeps Everything Else From Cooking

This isn't a part anyone gets excited about, but on the Mitsubishi L200, overlooked cooling problems are responsible for most serious engine failures that aren't simple wear-and-tear. Catching the early symptoms is about the cheapest insurance available against a major bill later.

Before you buy: radiator size and design vary significantly by engine size, transmission type, and whether your car has air conditioning. Always confirm against your VIN before ordering.

Mitsubishi L200 Radiator: What It Does

Keeping the Mitsubishi L200's engine temperature within safe limits comes down to the radiator's job of transferring heat from the coolant into the surrounding air. Automatic-gearbox versions often build in a second circuit for transmission fluid cooling too, which is exactly why fitting the wrong part number can cause two problems, not one.

Mitsubishi L200 Radiator reference plate

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A Genuinely Useful, Specific Diagnostic Clue Worth Knowing — Mitsubishi L200 Radiator

If you're facing overheating, this specific combination of symptoms is genuinely worth knowing about: both radiator hoses feeling solid to the touch rather than squishy, combined with visible boiling in the header tank, and the temperature temporarily dropping when the heater is switched on full, strongly points toward a stuck thermostat restricting coolant flow, rather than a leak or a more serious fault. It's worth checking the thermostat specifically if you're seeing this exact pattern, since it's a comparatively inexpensive part to replace compared with some of the more serious causes of overheating.

A genuinely important warning worth knowing if you're tempted to simply remove a faulty thermostat rather than replace it: while the engine will technically still run without one, it will experience increased wear from not reaching correct operating temperature quickly enough, and coolant can actually flow through the radiator too fast without a thermostat to regulate it, meaning it doesn't have enough time to cool properly in the radiator core — genuinely worth replacing a faulty thermostat properly rather than leaving it out as a supposed quick fix.

It's also genuinely worth knowing that if a cooling system has recently had a new radiator or other major component fitted, a proper flush and bleed of the system is worth confirming was actually carried out, since air trapped in the system or debris not fully flushed out can cause overheating that has nothing to do with the new part itself.

Mitsubishi L200 Radiator: Faults, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Radiator Guide for the three common failure modes, confirming fitment against your VIN, and OEM vs aftermarket guidance.

More Mitsubishi Radiator

The same part, covered across other Mitsubishi models.