OEM-Equivalent Quality Parts certified

OEM-Equivalent Quality Parts

4.5-Star Rated Supplier certified

4.5-Star Rated Supplier

Radiator Support Replacement Parts

Radiator Support Replacement Parts from Radiator Supply House cover structural and cooling system components including side rails, mounting brackets, tanks, shrouds, crossmembers, and gaskets for heavy-duty trucks, RVs, buses, and emergency vehicles. Compatible with Peterbilt, Kenworth, Freightliner, International, and more.

RV & Bus Cooling Components Collection
Freightliner Radiators & Cooling Components Collection
Peterbilt Cooling & Radiator Parts Collection
International Truck Cooling & HVAC Parts Collection
Kenworth Truck Cooling & Radiator Parts Collection

Our Range of Products

RV & Bus Cooling Components Collection

RV & Bus Cooling Components Collection

  • 367+ parts for RVs, buses & fire trucks
  • Fits Monaco, Spartan, Bluebird & more
  • Radiators, CAC, AC condensers & shrouds
Freightliner Radiators & Cooling Components Collection

Freightliner Radiators & Cooling Components Collection

  • 390 SKUs for Freightliner truck models
  • Fits Cascadia, M2, FLD120 & Columbia
  • Radiators, CAC, oil coolers & tanks
Peterbilt Cooling & Radiator Parts Collection

Peterbilt Cooling & Radiator Parts Collection

  • 285 Peterbilt-compatible cooling SKUs
  • Fits 13+ models incl. 379, 389 & T270
  • Full kits to individual tank components
International Truck Cooling & HVAC Parts Collection

International Truck Cooling & HVAC Parts Collection

  • 457 SKUs across 20+ cooling part types
  • Covers fire trucks, UPS & dump trucks
  • Radiators, CAC, oil cooler & AC parts
Kenworth Truck Cooling & Radiator Parts Collection

Kenworth Truck Cooling & Radiator Parts Collection

  • 279 Kenworth-specific cooling products
  • Compatible with W900, T600 & T2000
  • Full assemblies and structural parts

Frequently Asked Questions

How to replace a radiator support?

Replacing a radiator support involves draining the cooling system, disconnecting hoses and electrical connections, unbolting the damaged support structure (side rails, crossmembers, or mounting brackets), and installing the new OEM-compatible component. Always refer to your truck's service manual for torque specs. Structural components like side rails and bottom brackets should be inspected for alignment before final installation.

What types of radiator support replacement parts are available?

Which truck brands are covered in your radiator support parts catalog?

Are Radiator Supply House parts OEM-compatible?

How do I find the right radiator support part for my truck?

Do you offer complete cooling packages in addition to individual support parts?

How do I get pricing and place an order for radiator support parts?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Commercial Trucking & Fleet

Commercial Trucking & Fleet

Structural radiator support parts for Peterbilt, Kenworth, Freightliner, and International long-haul and vocational trucks.

Emergency Services

Emergency Services

Cooling support components for fire trucks and emergency vehicles from Spartan, Oshkosh, and International platforms.

RV & Motorcoach

RV & Motorcoach

Radiator tanks, side rails, and cooling brackets for motorhomes and coaches from Monaco, Tiffin, Newmar, and Fleetwood.

Transit & Bus Operations

Transit & Bus Operations

Cooling system support parts for transit buses and motorcoaches from Bluebird, Gillig, MCI, and Prevost fleets.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Fleet Operators & Repair Shops Choose Radiator Supply House

1,700+ SKUs Across Top Brands

Browse over 1,700 radiator support parts compatible with Peterbilt, Kenworth, Freightliner, International, and specialty vehicles — all in one catalog.

Complete Cooling System Coverage

From side rails and mounting brackets to tanks, shrouds, and full cooling packages — get every structural and thermal component you need from one supplier.

Trade Pricing for Fleet Buyers

Registered trade and fleet customers access exclusive login-based pricing and live availability, streamlining procurement for high-volume repair operations.

Get the Right Radiator Support Part — Fast

Submit your request and our team will confirm part compatibility, pricing, and availability for your specific truck make and model.

Contact Us Today

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