Without a radiator to help "sink" (reduce the effects of) the heat its engine produces as it runs, your Mazda vehicle would almost certainly overheat. How one works -- indeed, how the cooling process works generally -- is as follows.

First, a combination of antifreeze and water, commonly called coolant, flows back and forth between an inlet and outlet through radiator hoses. It gets help from a water pump, and, along the way, a radiator cap pressurizes it. As the coolant moves, it absorbs as much of that heat as possible. Then, a set of fins on the radiator core expel the heat, and finally, a cooling fan scatters it. The result: the engine runs cooler, works better, and lasts longer.

No radiator lasts forever, though. One goes bad, and it'll cause all sorts of problems, with the car heater and air conditioner, with the engine, and more -- everything from malfunctions to overheats and failures. Luckily, there are signs to let you know that's happening, namely fin damage, engine noises that are out of the ordinary, coolant that's turning to sludge, the sweet, syrupy smell of ethylene glycol, and coolant leaks. See any, and you should check your vehicle's temperature gauge to see if the engine's running too hot. Then, inspect the cooling system, replacing the radiator or any relevant parts as needed. Avoid aftermarket parts, though; choose only the genuine article.

Why Buy an OEM Radiator vs. Aftermarket?

With Mazda, you get a fitment guarantee -- that the radiator you buy will be compatible specifically with the car or SUV you drive. Off-brands don't always offer the same assurances.

Where to Order Genuine Mazda Radiators Online

You'll find plenty in our auto parts catalog. Choose your model first, then your model year; doing so will help make sure you're browsing for the best fit. Then, put in your order; we'll ship and deliver it before you know it, right to your doorstep. Most in-stock radiators, we can ship within 24 hours, and some others, we can send out in as few as 2-3 business days. Best of all, we ship nationwide, and overnight is an option. Need to return a radiator, though? Maybe just cancel your order altogether? No problem: just get in touch with us first to start the process. For further info on shipping, returns, and cancellations, check out our store policies. You can also contact our team of parts specialists anytime, should you have a question or concern or need a little bit of their expert buying advice.

PEAR15351 - : Engine Coolant Reservoir for Mazda Image

Engine Coolant Reservoir

Mazda PEAR15351
Mexico built. Mazda3. 2.0l.
$26.98 CAD
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N3A113536 - : Water Hose Assembly for Mazda Image

Water Hose Assembly

Mazda N3A1-13-536
#1.
$12.06 CAD
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CC296124XC - : HVAC Heater Hose for Mazda Image

HVAC Heater Hose

Mazda CC29-61-24XC
Inlet.
$73.73 CAD
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KL4713681 - : Engine Coolant Hose for Mazda Image

Engine Coolant Hose

Mazda KL47-13-681
Throttle Body to Cylinder Head.
$11.92 CAD
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BDTS507E1AKM - : Bumper Cover Spacer Panel for Mazda Image

Bumper Cover Spacer Panel

MEXICO BUILT SEDAN. without front camera ceramic.
$269.60 CAD
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BBM453120B - : Fender Brace for Mazda Image

Fender Brace

Mazda BBM4-53-120B
$81.17 CAD
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PX4J1573X - : Turbocharger Coolant Supply Line for Mazda Image

Turbocharger Coolant Supply Line

Mazda PX4J-15-73X
Japan built. With 2.5L turbo, upper. Engine Oil Cooler. Flow Not Specified.
$22.08 CAD
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PX28157KX - : Water Hose Assembly for Mazda Image

Water Hose Assembly

Mazda PX28-15-7KX
2.5L. Water hose assy.
$199.64 CAD
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PY8V13540 - : Turbocharger Coolant Line for Mazda Image

Turbocharger Coolant Line

Mazda PY8V-13-540
Water outlet. Water pipe. 2.5L turbo, pipes & lines. With 2.5L turbo.
$75.78 CAD
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BJ0J53120B - : Side Panel for Mazda Image

Side Panel

Mazda BJ0J-53-120B
$43.42 CAD
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