EGR Cooler Kit for International 7500 (2004-2007) 9.3L

Heavy-Duty Stainless Steel EGR Cooler Kit for 2004-2007 International 7500 (7000 Series)

What it Does: The EGR Cooler Kit replaces the failure-prone factory heat exchanger on the 2004-2007 International 7500 to prevent coolant ingestion, lower exhaust gas recirculation temperatures, and protect against catastrophic engine overheating.

The Stock International 7500 EGR Cooler Vulnerability

The factory round-style heat exchanger on the Navistar HT570 and DT570 suffers from thermal fatigue under sustained heavy-haul duty cycles. Intense thermal cycling and internal soot accumulation cause the thin internal OEM cooling tubes to crack or rupture. Once fractured, pressurized engine coolant is drawn directly into the exhaust stream and intake tract. This failure mode results in unmetered coolant consumption, dense white exhaust smoke, rapid thermal spikes, derate modes, and recurring diagnostic trouble codes such as P0401 or P0404.

The Engineering Solution

Constructed from high-grade, thick-wall stainless steel, this 11.5-inch round EGR cooler is engineered to resist thermal shock, sulfur corrosion, and high-pressure expansion. Reinforced internal passage tubes provide superior thermal dissipation without restricting exhaust gas velocity or causing localized heat soak. Designed as a direct bolt-on replacement for OEM part numbers 1871733C92 and 1871733C93, this complete kit includes all vital replacement gaskets, O-rings, a coolant feed tube, and mounting hardware to ensure an airtight, leak-free seal straight out of the box.

What's Included

• 1 Round Stainless Steel EGR Cooler (approx. 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 Mounting Bolts

Technical Specifications

Compatibility

• 2004 International 7500 9.3L Navistar HT570 / DT570 Diesel
• 2005 International 7500 9.3L Navistar HT570 / DT570 Diesel
• 2006 International 7500 9.3L Navistar HT570 / DT570 Diesel
• 2007 International 7500 9.3L Navistar HT570 / DT570 Diesel

Frequently Asked Questions & Fitment Warnings

Does this fit the 7000 Series 7500?

Yes, this is a direct fit for the 2004-2007 International 7500 equipped with the HT570 or DT570 9.3L engine, but verify your original cooler is the round 11.5-inch style before installation.

Do I need to bleed the cooling system after installing this cooler?

Yes, completely drain, refill, and vacuum-bleed the engine cooling system to prevent localized air pockets that can cause premature thermal stress on the new cooler.

The International WorkStar Standard

Severe-duty fleet vocational trucks demand uncompromised reliability under maximum gross vehicle weight ratings; this stainless steel cooler is built to endure harsh commercial duty cycles without leaking or derating your engine.