MAHLE 41940.04 PISTON RING SET (.040) FOR 2003-2007 FORD SUPERDUTY WITH 6.0L POWERSTROKE ENGINE

The MAHLE 41940.04 piston ring set is designed for the 2003–2007 Ford 6.0L Power Stroke diesel engine, specifically for applications requiring a 0.040-inch oversize. This oversize is suitable for engines with worn cylinder bores that need a larger diameter to restore proper sealing and compression.

? Specifications

• Bore Size: 3.7795 inches (96.0 mm)

• Oversize: 0.040 inches

• Ring Configuration:

  • Top Ring: Plasma-Moly coated carbon steel

  • Second Ring: Cast iron

  • Oil Control Ring: Two-piece cast iron design

• Material Composition:

  • Upper Compression Ring (UCR): Carbon Steel

  • Lower Compression Ring (LCR): Ductile Iron

  • Oil Control Ring (OCR): Stainless Steel

• Axial Heights:

  • UCR: 2.3 mm

  • LCR: 2.0 mm

  • OCR: 3.44 mm

• Ring Types:

  • UCR: RFK-13PF

  • LCR: RBT-17

  • OCR: GCL-40URW
    

This set includes rings for a single cylinder. For a complete engine rebuild, eight sets are required.

? Vehicle Fitment

The MAHLE 41940.04 piston ring set is compatible with the following Ford models equipped with the 6.0L Power Stroke diesel engine:

• 2003–2007 Ford F-250 Super Duty

• 2003–2007 Ford F-350 Super Duty

• 2003–2007 Ford F-450 Super Duty

• 2003–2007 Ford F-550 Super Duty

• 2004–2010 Ford E-350 Super Duty

• 2004–2010 Ford E-450 Super Duty

• 2004–2005 Ford E-350 Club Wagon

• 2003–2005 Ford Excursion

Additionally, it fits select Navistar VT275 applications. Please verify the engine specifications and VIN code to ensure compatibility with your specific vehicle.