6.4L Powerstroke EGR Valve O-Ring Kit Alliant AP0042 SKU: appAP0042

The Alliant Power AP0042 is a new EGR valve o-ring kit for 2008–2010 Ford 6.4L Powerstroke applications. Alliant’s Exhaust Gas Recirculation (EGR) Valve O-Ring helps provide the sealing surface needed between related components.

Features & Benefits

New Alliant Power EGR Valve O-Ring Kit (Alliant P/N AP0042)
Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
Direct replacement for 8C34-9D476-AA / 8C3Z-9D476-A / 8C3Z9D476
Backed by Alliant Power’s 24-month, unlimited-mileage warranty

Application

Ford F-250 Super Duty / F-350 Super Duty / F-450 Super Duty / F-550 Super Duty (2008–2010)
International 3200 / 4100 / 4300 / 4300LP (2008–2010)
International TerraStar (2010)

Always verify fitment against your VIN, engine, and OE part number before ordering.

Cross-Reference / Replaces

Ford: 8C34-9D476-AA, 8C3Z9D476, 8C3Z-9D476-A
Motorcraft: CG753
Navistar: 1847321, 1847321C1
Alliant Power: AP0042

Warranty: Alliant Power’s standard warranty: 24 months with unlimited miles/hours on installed parts (Alliant Power warranty policy, rev. Aug 2025).[...]