Mitsubishi Outlander Radiator: Specs, Fitment & Common Faults
A genuinely specific, real finding on the PHEV: coolant develops flakes that clog an inline filter before the heater matrix, stopping the heaters working — with a £1,000 dealer quote versus what's actually a genuinely manageable DIY clean.
Illustration for editorial purposes
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OEM Part Number: 1350A603 (as quoted in catalogue listings — confirm via VIN) — aftermarket radiators Nissens 606181 / Denso DRM45042
| Radiators (aftermarket) | Nissens 606181 (400 x 707 x 27 mm, soldered aluminium core, plastic tanks, fits 2.2 DI-D and 2.2 DI-D 4WD 150 PS, engine 4N14); Denso DRM45042; NRF 59247; Van Wezel 32012704; Ava MT2268. Ava MT2262 (400 x 688 x 16 mm, soldered aluminium core, plastic tanks, fits 2.2 DI-D 150 PS and 2.2 DiD 4WD 179 PS, engine 4N14); Nissens 628987; Denso DRM45038; NRF 550152 |
|---|---|
| Core sizes & variants | Two diesel radiators exist for the 4N14 engine, a 27 mm core (OE 1350A603) and a 16 mm core (OE 1350A604), which most likely split by gearbox, so quote the VIN. |
| Genuine (OE) numbers quoted | 1350A603 (Nissens 606181); 1350A604 (Ava MT2262) |
| Fitment notes | The Nissens unit has 25 mm and 28 mm connections and the Ava unit 35 mm connections, so check the hose ends before ordering |
Mitsubishi Outlander Radiator: The Part That Keeps Everything Else From Cooking
Few parts get less attention than this one, but on the Mitsubishi Outlander, a neglected cooling system is behind the vast majority of avoidable serious engine failures. Noticing the early warning signs costs nothing and can save a genuinely large repair bill down the line.
Mitsubishi Outlander Radiator: What It Does
On the Mitsubishi Outlander, coolant runs through the radiator to shed engine heat into the airflow, keeping temperatures in check. On many automatics, a separate internal circuit inside the same unit also cools the transmission fluid — one more reason a mismatched part number causes more than just a cooling problem.
Mitsubishi Outlander Radiator: Watch: Replacing It
Third-gen Outlander; older-gen alternatives exist (OQ266w0iZy0, 2007-2013).
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A Genuinely Specific, Real Finding Worth Knowing on the PHEV — Mitsubishi Outlander Radiator
If your heaters have stopped working or are only blowing cold or lukewarm air despite the temperature being set correctly, this is genuinely worth knowing on the plug-in hybrid: there's a documented issue where coolant develops small flakes over time that clog an inline filter positioned just before the heater matrix, cutting off the flow needed for the heaters to work. This is a genuinely distinctive component many owners don't know exists, and it's worth knowing about specifically rather than assuming a more general heater or coolant system fault. One documented case saw a dealer quote around £1,000 for this repair, which the owner reasonably felt was excessive given what the job actually involves.
It's also genuinely worth knowing a specific complication to avoid: at least one documented case saw an owner mistakenly remove the heater valve first, believing the filter was located there, before eventually locating the actual filter elsewhere in the system — worth confirming the filter's exact location before starting, to avoid this unnecessary extra step and additional coolant loss.
Mitsubishi Outlander 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.