Mazda CX-5 Radiator: Specs, Fitment & Common Faults
A genuinely important fitment warning: the coolant reservoir differs by turbo vs non-turbo and even build location — plus a specific, real issue affecting early diesel CX-5 coolant bypass pipes.
Illustration for editorial purposes
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OEM Part Number: confirm via VIN — radiators (aftermarket) Nissens 68532 / Valeo 701393 and 701392
| Radiators (aftermarket) | Nissens 68532 (425 x 752 x 26 mm, aluminium core with plastic tanks, fits 2.2 D 150 and 2.2 D AWD 150/175, also the later KF 2.2 D); Nissens 68533 (425 x 733 x 26 mm, aluminium core with plastic tanks, with built-in oil cooler, fits 2.2 D 150 and 2.2 D AWD 150/175); Valeo 701393 and 701392; Denso DRM44040 and DRM44041; NRF 58416 and 58417; Van Wezel 27002272 and 27002274; Hella 8MK 366 303-911 and 8MK 366 309-621; Prasco MZ702R002 and MZ702R003. |
|---|---|
| Core sizes & variants | The 2.2 diesel came with two radiators, one with an integrated transmission oil cooler (68533, OE SH0215200) for automatic cars and one without (68532, OE SH0115200 / SH0315200) for manuals; both have 33 mm connections. The 2.0 and 2.5 Skyactiv-G petrol radiators are separate parts not covered here. |
| Genuine (OE) numbers quoted | SH0115200; SH0315200; SH0115200B; SH9N15200; SH0115200A; SH0215200; SH0215200A; SH0215200B |
| Fitment notes | Both units come with a sealing lid and the 68532 also with gaskets and seals. Confirm gearbox type before ordering, because the oil-cooler version is 19 mm narrower and has extra oil pipe unions. |
A Genuinely Important Fitment Warning Worth Knowing Before Ordering — Mazda CX-5 Radiator
If you're replacing the coolant reservoir specifically, this is genuinely worth knowing: fitment is considerably more complex than it might first appear, with real differences depending on whether your engine is turbocharged or non-turbo, and even on which factory the car was built in, Japan or Mexico. Always verify against your specific VIN and visually match the part before buying, rather than assuming any reservoir listed for your model year and engine size will necessarily fit correctly.
It's also genuinely worth knowing a specific diagnostic detail if you're chasing a subtle thermostat housing leak: rather than an obvious crack across the housing itself, a failing gasket or seal commonly manifests as weeping specifically around one of the housing bolts — worth checking this precise spot closely with a torch and good lighting angle before assuming the housing itself needs replacing, since the actual fix may simply be a new seal or gasket at that bolt location.
Mazda CX-5 Radiator: The Part That Keeps Everything Else From Cooking
Nothing about this component is glamorous, but on the Mazda CX-5, almost every serious engine failure that isn't wear-related traces back to a cooling system problem left unaddressed. Catching the early signs here is genuinely cheap insurance against a much bigger bill.
Mazda CX-5 Radiator: Watch: Replacing It
Same Skyactiv platform and engines; CX-5 hits were coolant changes and mounts only
Mazda CX-5 Radiator: What It Does
The Mazda CX-5's radiator transfers heat from the engine coolant to the surrounding air, keeping engine temperature within a safe operating range. On automatic versions, it often also cools transmission fluid through a separate internal circuit — one more reason the correct part number matters so much here.
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Mazda CX-5 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 Mazda Radiator
The same part, covered across other Mazda models.