Engineered specifically for late 2004.5 through 2007 Ford F-250, F-350, F-450, F-550 Super Duty, Excursion, and 2004–2010 E-Series Commercial Vans equipped with the 6.0L Powerstroke diesel engine (square EGR cooler configuration, built after September 22, 2003), the Alliant Power Complete EGR Cooler & Oil Cooler Kit (AP63445) provides an all-in-one remedy for the 6.0L platform's most notorious design flaw. Industry experience proves that an EGR cooler almost always fails due to restricted coolant flow caused by a plugged engine oil cooler underneath. Replacing only the EGR cooler leaves the restricted oil cooler in place, guaranteeing repeat thermal failure.

Alliant Power solves this by packaging the AP63446 square EGR cooler and AP63451 engine oil cooler together into a single, comprehensive kit alongside all necessary manifold gaskets, coolant seals, and hardware. Backed by Alliant's 24-month unlimited-mileage warranty, this bundle ensures complete cooling system restoration.

Key Features & Benefits

• Complete Root-Cause Solution: Combines both the EGR cooler and engine oil cooler to prevent repeat thermal failures caused by restricted coolant flow.
• Alliant AP63446 Square EGR Cooler: Direct-fit replacement engineered to withstand high exhaust temperatures and thermal shock.
• Alliant AP63451 Engine Oil Cooler: Restores full coolant and oil flow capacity to protect internal engine components and turbo longevity.
• Complete Gasket & Seal Set: Includes all required interface gaskets, O-rings, and mounting hardware for a comprehensive under-manifold overhaul.
• Alliant Power 24-Month Warranty: Backed by Alliant's robust 24-month, unlimited-mileage parts warranty coverage.

Technical Specifications

• Manufacturer Part Number / SKU: AP63445 / 012AP63445 (Alliant Power)
• Included Component Part Numbers: AP63446 (Square EGR Cooler Kit) & AP63451 (Engine Oil Cooler Kit)
• Truck & Van Platform: Late 2004–2007 Ford Super Duty F-250/350/450/550, Excursion & 2004–2010 E-Series Vans
• Engine Platform: 6.0L 32-Valve Powerstroke V8 Diesel / Navistar VT365 (Square Cooler Layout)
• Core Requirement: None (Brand New Components - No Core Return Required)
• Warranty: Alliant Power 24-Month Unlimited Mileage Warranty

Vehicle Fitment & Installation Notes

• Late 2004–2007 Ford F-250 / F-350 / F-450 / F-550 Super Duty – 6.0L Powerstroke Diesel (Built after 9/22/2003)
• Late 2004–2005 Ford Excursion – 6.0L Powerstroke Diesel
• 2004–2010 Ford E-350 / E-450 Super Duty Van – 6.0L Powerstroke Diesel
• Fits Model Years: Late 2004, 2005, 2006, 2007 (Plus E-Series commercial vans through 2010)
• Fitment Notice: Designed strictly for late 2004.5–2010 models utilizing the square-style EGR cooler configuration. Does not fit early 2003 to mid-2004 trucks equipped with the round-style cooler layout. Verify your vehicle build date and physical cooler shape before ordering.
• Installation Tip: Thoroughly flush the entire cooling system of casting sand, scale, and oil contamination before installing this kit. Trapped debris in the cooling passages will immediately clog the new oil cooler core and void thermal efficiency.