Peterbilt Radiators

Peterbilt Radiators — OEM-Spec Replacement Parts for Canadian Fleets

Peterbilt owners are the least likely of any make to replace a truck rather than repair it, and the 379 and 389 are the reason. We list 9 Peterbilt radiator part numbers covering 1993 through 2018 across 18 model designations, weighted toward the long-nose trucks that stay in service the longest.

The 379 ran from 1987 to 2007 and is still everywhere — and it is the model where radiator sourcing gets hardest, because the aftermarket has largely moved on. The 389 that replaced it shares the long-nose layout but not the cooling package; on ISX and X15 trucks the core and the mounting both differ. Check the year on the listing rather than assuming a 379 part fits a 389.

For the aerodynamic line, the 387 and 385 cover the highway tractors, and the 377 and 378 cover the set-forward and set-back axle trucks of the same era. The 357, 365 and 367 parts cover severe-service and vocational chassis, and the 567 and 579 listings reach the current line.

This is a smaller list than our Freightliner or International coverage, and we would rather show you what we actually hold than pad it out. It is not the limit of what we can supply — send us the model, year and last nine VIN digits and we will confirm fitment and price the same day, including applications we do not list. For 579 charge-air cooling, see our Peterbilt 579 charge air cooler guide, and our 379 and 389 CAC guide covers the long-nose trucks.

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 — Peterbilt Radiators