OEM-Equivalent Quality Parts certified

OEM-Equivalent Quality Parts

ICEBOX Replacement Parts certified

ICEBOX Replacement Parts Standard

International Truck Heater Cores — Replacement Parts

International Truck heater cores are direct-fit replacement components designed to restore cabin heating performance across a wide range of International truck models, including the 4700, 4900, 7300, 7400, 8000, 9200, and 9400 series. Sourced for OEM-equivalent fit and durability, these parts support fleet shops, repair technicians, and commercial operators.

International Truck Cooling & HVAC Parts Collection

Our Range of Products

International Truck Cooling & HVAC Parts Collection

International Truck Cooling & HVAC Parts Collection

  • 457 SKUs across 20+ cooling part types
  • Fits 4700, 4900, 9400 & more models
  • Covers fire trucks, UPS & dump trucks

Frequently Asked Questions

How much does it cost to replace a heater core in a truck?

The cost to replace a heater core in a commercial truck varies based on the model and labor involved. The part itself for International trucks typically ranges from $80 to $300 depending on the series (e.g., 4700, 9400). Labor can add $200–$600 at a shop. Sourcing a direct-fit replacement part from a specialized supplier like Radiator Supply House helps minimize parts costs significantly.

Can I replace the heater core myself?

Which International truck models are compatible with your replacement heater cores?

What are the symptoms of a failing heater core in an International truck?

Are these heater cores OEM-quality or aftermarket?

How do I find the correct heater core part number for my International truck?

Do you ship replacement heater cores across the USA?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Commercial Trucking & Freight

Commercial Trucking & Freight

Replacement heater cores keep long-haul and regional International trucks operational in cold-weather freight operations.

Fleet Maintenance & Repair Shops

Fleet Maintenance & Repair Shops

Fleet technicians rely on direct-fit heater core replacements to minimize downtime across large International truck fleets.

Emergency & Fire Services

Emergency & Fire Services

Heater core replacements for International fire trucks and emergency vehicles ensure reliable cabin climate control year-round.

Construction & Municipal Fleets

Construction & Municipal Fleets

Dump trucks and municipal International vehicles require dependable heater cores for year-round operator comfort and safety.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Fleet Shops & Trucking Companies Choose Radiator Supply House

Extensive International Truck Coverage

Our catalog covers 457+ SKUs across International models from the 4700 to 9900 series, including fire trucks, dump trucks, and UPS fleets.

OEM-Equivalent Fit & Durability

ICEBOX replacement parts are engineered to match OEM specifications, ensuring reliable performance and long service life for demanding commercial applications.

One-Stop Cooling System Source

From heater cores and radiators to oil coolers and AC condensers, we supply complete HVAC and cooling solutions for International trucks under one roof.

Need Help Finding the Right Heater Core?

Submit your truck model and year and our parts specialists will confirm fitment 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.