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Semi Truck Radiators

OEM-spec radiators for Freightliner Cascadia, Kenworth T680, Peterbilt 389, Volvo VNL, Mack, International and more. Browse all part numbers by make, model and year.

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New semi truck radiator on warehouse parts shelf — OEM-spec replacement for Freightliner Kenworth Peterbilt Volvo Mack

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📞 (437) 868-4875

Semi Truck Radiators — OEM-Spec Replacement Parts for Canadian Fleets

A failing radiator is one of the most costly breakdowns a fleet can experience. Overheating can cause head gasket damage, warped cylinder heads, and complete engine failure — all from a part that's often ignored until it's too late. At True Truck Parts, we stock OEM-spec semi truck radiators for Freightliner Cascadia, Kenworth T680, Peterbilt 379/389, Volvo VNL, Mack, International, Western Star, and more. Every radiator is built to match OEM dimensions, core specifications, and inlet/outlet positioning so your mechanic can install it without modifications.

The Kenworth T680 is one of the most common semi trucks on Canadian highways, and we stock direct-fit radiators compatible with Paccar MX-11 and MX-13 engines from 2012 through current model years. For Peterbilt 389 and 379 owners, we carry both aluminium and copper-brass core options. Volvo VNL radiators in our inventory are spec'd for D13 and D16 engines, and our Mack selection covers the CXU and GU series running MP7 and MP8 powerplants. Use the filter above to find your exact application.

Semi truck radiator replacement costs vary by model. The radiator itself is typically $400–$1,200 CAD depending on make and model, with labour adding $300–$600. Getting the right OEM-spec part the first time avoids costly re-work. We provide same-day quotes — call or submit your truck details online and we'll confirm fitment and price within hours.

We serve fleets and owner-operators across the GTA including Mississauga, Brampton, Vaughan, Milton, Oakville, Burlington, Hamilton, Pickering, Ajax, and Oshawa. Canada-wide shipping available. Same-day quoting on all applications.

Frequently Asked Questions — Semi Truck Radiators

What signs indicate a semi truck radiator needs replacing?

Key warning signs include engine overheating, visible coolant leaks under the truck, coolant that appears rusty or contaminated, unexplained coolant loss, or visible physical damage such as bent fins or corrosion on the core. If you see white steam from the hood or the temperature gauge climbing into the red, pull over immediately.

What semi truck brands do your radiators fit?

Our radiator inventory covers Freightliner (Columbia, Cascadia, Century, Classic), Kenworth (T680, T880, W900, T600), Peterbilt (379, 386, 387, 389), Volvo (VNL, VNM), Mack (CH, CX, CXU, GU), International (LT, RH, 9200, 9400), Western Star (4900, 5700), Hino, Sterling, and more.

Do you carry aluminium and copper/brass radiators?

Yes, we carry both aluminium and copper/brass radiator options depending on the application. Most of our stock is OEM-spec aluminium for modern trucks, with copper/brass available for older models.

How long does a semi truck radiator last?

A well-maintained semi truck radiator typically lasts 8–15 years or over 500,000 km. Premature failure is usually caused by coolant neglect, road debris damage, or vibration-related core damage. Flushing the cooling system every 2 years and keeping coolant at the correct concentration extends radiator life significantly.

Can I get same-day or next-day shipping on radiators?

We offer fast shipping across Canada. Contact us or place your order online and we will confirm the fastest available shipping option to your location. For GTA customers, local pickup is also available.

How much does a semi truck radiator replacement cost in Canada?

Semi truck radiator prices typically range from $400 to $1,200 CAD depending on the make and model. A Freightliner Cascadia or Kenworth T680 radiator will differ in price from an older Peterbilt 379. Labour at a shop generally adds $300–$600. Contact us for a same-day quote on your specific application — we can usually confirm fitment and pricing within a few hours.

Do your radiators fit Kenworth T680 trucks?

Yes. We stock OEM-spec radiators for the Kenworth T680 compatible with Paccar MX-11 and MX-13 engines across multiple model years. Use the filter above to select Kenworth → T680 and your year to see available part numbers, or call us for a fast quote.

Can I order a semi truck radiator online and have it shipped to my shop?

Yes. Browse our radiator inventory using the filter above, select your part, and complete the order online. We ship Canada-wide with fast courier options. You can also call us at (437) 868-4875 or email to confirm fitment before ordering if you're unsure of your part number.

What's the difference between OEM-spec and aftermarket radiators for semi trucks?

OEM-spec radiators are manufactured to match original equipment dimensions, core density, inlet/outlet placement, and mounting points exactly. This means no modifications during installation and reliable cooling performance matching the truck's original design. True generic aftermarket parts may have dimensional differences that require adapter fittings or reduce cooling capacity. Our radiators are OEM-spec and drop in like the factory original.

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