Mazda 6 Oil Cooler Replacement Parts

Yes, oil coolers were fitted to certain Mazda 6 variants, most commonly the diesel engines (such as the 2.0 and 2.2 SKYACTIV-D units) and some turbocharged petrol applications, where managing oil temperature is more critical. Naturally aspirated petrol Mazda 6 models are less likely to carry a dedicated oil cooler, so if you have one of those engines, confirm with the breaker whether the part is present on your specific car before ordering. Your engine code, found on your V5 or via a VIN check, is the most reliable way to identify exactly which variant you have.

The Mazda 6 moved from the second generation (GH, roughly 2007–2012) to the third generation (GJ, 2012 onwards), so a 2013 and a 2017 car are both within the GJ generation — but there was a facelift around 2015 that may have brought ancillary and mounting changes. Engine code matching is the most important check here, as the same engine family across those years is your best starting point. Whether the cooler and its fittings cross the 2015 facelift boundary cleanly is something you should confirm with the breaker against your registration before purchasing.

The GH (second generation, approximately 2007–2012) and GJ (third generation, 2012 onwards) are significantly different cars with different engine families, so an oil cooler from the GH is very unlikely to be a direct swap onto a GJ even if the fuel type looks the same. Engine codes changed between generations, and the cooler's design, porting, and mounting are tied to the engine architecture rather than the model badge. Stick to sourcing from the same generation and, ideally, the same engine code as your car.

Trim level — whether your Mazda 6 is SE, SE-L, Sport Nav, or GT Sport — does not affect the oil cooler fitment because this is a mechanical part driven entirely by the engine specification, not the interior or equipment grade. Two cars with identical engine codes will use the same oil cooler regardless of which badge is on the boot. Focus on matching the engine code and fuel type rather than the trim name when sourcing from a breaker.

For the engine-mounted oil cooler itself, the engine code is the primary fitment factor and gearbox type generally does not alter this component. However, automatic gearboxes sometimes use a separate transmission oil cooler or have the gearbox oil routed through a combined cooler, so if you are looking at a combined or integrated cooler unit, gearbox type could matter. Confirm with the breaker exactly which cooler is fitted to your car's specific engine and gearbox combination using your registration, to make sure you are getting the right unit.

The single most useful detail you can give a breaker is your engine code, which you will find on your V5 logbook or by running a VIN check — this tells them far more than the year or trim level alone. Also provide your fuel type (diesel or petrol), gearbox type, and the full registration so the breaker can cross-reference their parts against your exact vehicle. Never assume fitment based on year alone, as mid-production changes can affect ancillary parts, and always confirm compatibility with the breaker before purchasing.