Engineered specifically for 2003 through 2007 Ford F-250, F-350, F-450, F-550 Super Duty, Excursion, and 2004–2010 E-Series Van platforms equipped with the 6.0L Powerstroke diesel engine, the MAHLE EGR Valve Mounting Gasket Kit (GS33719) provides an OE-quality sealing solution for routine maintenance or when servicing carbon-plugged EGR valves. Reusing old, heat-baked O-rings or compressed gaskets during reassembly frequently causes annoying under-hood exhaust leaks, soot tracking, and high-pitched whistling noises under load.

MAHLE manufactures this kit using a robust graphite-faced gasket and specialized high-temperature elastomer O-rings designed to endure intense exhaust gas temperatures and continuous thermal expansion without degrading. Each package includes all necessary sealing components required to mount the factory EGR valve securely back into the intake manifold bore.

Key Features & Benefits

• High-Density Graphite Gasket: Withstands extreme exhaust temperatures and conforms perfectly to minor surface imperfections on the mounting flange.
• High-Temperature O-Rings: Premium elastomer seals resist oil exposure and intense heat cycling, preventing hardening, cracking, and vacuum/exhaust leaks.
• OE Fit and Form: Manufactured to exact factory specifications for a direct, hassle-free drop-in installation.
• Stops Soot Leaks and Whistling: Secures the EGR valve tightly to eliminate exhaust odor, under-hood soot buildup, and whistling sounds under boost.
• Essential Service Component: A mandatory replacement item whenever removing, cleaning, or replacing the factory 6.0L Powerstroke EGR valve.

Technical Specifications

• Manufacturer Part Number / SKU: GS33719 / MAH-GS33719 (MAHLE Original)
• Ford OE Interchange Numbers: Ford 3C3Z-9P455-AB, 3C3Z9P455AB; International / Navistar 1840778C91
• Truck & Van Platform: 2003–2007 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
• Kit Contents: Graphite Valve Flange Gasket and High-Temperature Body O-Rings
• Core Requirement: None (Brand New Components - No Core Return Required)
• Warranty: MAHLE Original Limited Manufacturer Warranty

Vehicle Fitment & Installation Notes

• 2003–2007 Ford F-250 / F-350 / F-450 / F-550 Super Duty – 6.0L Powerstroke Diesel
• 2003–2005 Ford Excursion – 6.0L Powerstroke Diesel
• 2004–2010 Ford E-350 / E-450 Super Duty Van – 6.0L Powerstroke Diesel
• Fits Model Years: 2003, 2004, 2005, 2006, 2007 (Plus E-Series commercial vans through 2010)
• Fitment Notice: Compatible with both early round-cooler and late square-cooler 6.0L Powerstroke engine configurations. Always clean out carbon deposits from the intake manifold EGR bore before installing the new O-rings.
• Installation Tip: Wipe a thin layer of clean engine oil or high-temp grease across the new O-rings to help guide the EGR valve smoothly into the intake manifold housing without pinching or rolling the rubber seals.