OEM-Equivalent Quality Assurance certified

OEM-Equivalent Quality Assurance

ICEBOX Replacement Parts Program certified

ICEBOX Replacement Parts Program

Heavy Duty Truck Radiators

Heavy duty truck radiators from Radiator Supply House provide direct-fit, OEM-compatible cooling for Peterbilt, Volvo, Mack, and Freightliner fleets. Engineered to handle the extreme heat loads of long-haul diesel engines, these radiators, cores, and tanks restore reliable engine cooling for commercial trucking, fleet maintenance, and heavy-duty repair operations nationwide.

Our Range of Products

Cummins DQGAA, DQGAB, QSK50-G4 Cooling Package

Cummins DQGAA, DQGAB, QSK50-G4 Cooling Package

    Peterbilt 379 Radiator Core

    Peterbilt 379 Radiator Core

    • Direct-fit OEM core for Peterbilt 379
    • Sourced from original equipment manufacturer
    • Ready for immediate online purchase
    Cooling Packages (Various Models)

    Cooling Packages (Various Models)

      Combo Units (Radiator & Oil Cooler)

      Combo Units (Radiator & Oil Cooler)

        Radiator Cores Collection

        Radiator Cores Collection

          Ingersoll Rand Air Compressor Radiator

          Ingersoll Rand Air Compressor Radiator

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            Frequently Asked Questions

            What does a radiator do?

            A radiator is the core component of a vehicle's cooling system. It transfers heat away from the engine coolant into the surrounding air, preventing overheating. In heavy-duty trucks, radiators must dissipate significantly more heat due to larger diesel engines and heavier loads, making durable, correctly sized cores essential for reliable long-haul operation.

            How much is a radiator for a car?

            What's the difference between a radiator core and a complete radiator?

            Are your heavy duty truck radiators OEM or aftermarket?

            Which truck brands and models do you support?

            How do I know if my truck's radiator needs replacement?

            Can I get a complete cooling package instead of just a radiator?

            Didn't find what you're looking for?

            Talk to our experts for custom solutions and tailored guidance.

            Industries We Serve

            Long-Haul Trucking & Freight Transport

            Long-Haul Trucking & Freight Transport

            Direct-fit radiators keep Peterbilt, Volvo, and Mack trucks cool during extended highway hauls.

            Fleet Maintenance & Repair Shops

            Fleet Maintenance & Repair Shops

            OEM-compatible cores and radiators support fast turnaround repairs for commercial trucking fleets.

            Construction & Heavy Machinery

            Construction & Heavy Machinery

            Heavy-duty radiator cores also service excavators, loaders, and other construction equipment cooling needs.

            Emergency & Municipal Vehicles

            Emergency & Municipal Vehicles

            Specialty radiators support fire trucks and municipal fleets requiring dependable heavy-duty cooling.

            Didn't find what you're looking for?

            Talk to our experts for custom solutions and tailored guidance.

            You might also like

            Why Heavy-Duty Fleet Operators Choose Radiator Supply House

            Extensive OEM-Compatible Inventory

            Access 430+ radiator cores and components covering Peterbilt, Volvo, Mack, Freightliner, and other major heavy-duty truck brands.

            Direct-Fit, Fast Procurement

            Add-to-cart ordering delivers direct-fit replacement radiators quickly, minimizing costly fleet downtime.

            Specialized Cooling System Expertise

            Focused exclusively on radiators and cooling components, ensuring precise fitment and reliable long-haul performance.

            Need the Right Truck Radiator? Get a Fast Quote Today

            Tell us your truck's make and model, and our team will confirm fitment, pricing, and availability within one business day.

            Contact Us Today

            For immediate assistance, feel free to give us a direct call at +1 877-615-3002.