EGR Cooler Kit for International 7400 (2004-2007) 7.6L 9.3L

Heavy-Duty Stainless Steel EGR Cooler Kit for 2004-2007 International 7400 (7000 Series)

What it Does: The replacement EGR Cooler Kit lowers recirculated exhaust gas thermal loads before induction into the intake manifold on the 2004-2007 International 7400, preventing coolant loss and eliminating EGR-related fault codes.

The Stock International 7400 Thermal Fatigue Failure

Vocational duty cycles subject the factory DT466 and DT570 cooling assemblies to severe thermal shock. The OEM EGR cooler utilizes thin internal core tubes secured by fragile brazed joints. Over repeated heat cycles under sustained haul loads, these internal passages crack due to differential thermal expansion. This structural breakdown allows pressurized engine coolant to leak directly into the exhaust stream, triggering thick white tailpipe smoke, sudden coolant loss without external puddling, elevated combustion temperatures, and persistent EGR diagnostic trouble codes.

The Engineering Solution

Engineered for severe-duty reliability, this direct-replacement round-style EGR cooler features a 11.5-inch heavy-gauge stainless steel outer body and reinforced interior cooling tubes. Upgraded TIG-welded structural joins resist high-vibration cracking and withstand thermal cycling extremes far better than factory brazing. Designed to maintain OEM flow dynamics without soot buildup, this comprehensive kit includes the coolant transfer tube, rigid mounting bracket, exhaust gaskets, and high-temp elastomer O-rings to ensure a leak-free seal on the initial installation.

What's Included

• 1 EGR Cooler (Round Style, 11.5 in)
• 1 Coolant Tube
• 1 Mounting Bracket Clamp
• 2 Hose Clamps
• 1 Exhaust Ring Gasket
• 1 Triangle Flange Gasket
• 3 O-Rings
• 3 Bolts

Technical Specifications

Compatibility

• 2004-2007 International 7400 with Navistar DT466 7.6L Diesel
• 2005-2007 International 7400 with Navistar DT570 / HT570 9.3L Diesel

Frequently Asked Questions & Fitment Warnings

Does this fit the 7000 Series 7400?

Yes, this is a direct bolt-on fit for 2004-2007 International 7400 chassis powered by the DT466, DT570, or HT570 engines matching round-style units.

Do I need to bleed the cooling system after installation?

Yes, technicians must drain the cooling system completely prior to install, torque all fasteners to factory specification, and execute a complete vacuum bleed procedure to eliminate trapped air pockets that cause localized thermal hot spots.

The International Severe-Duty Caliber

Built for vocational work trucks operating under high payload and severe towing conditions, this cooler ensures continuous commercial fleet reliability while keeping the factory emissions system fully compliant.