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.

The MAHLE 41940.04 Piston Ring Set (.040) is expertly crafted for the 2003–2007 Ford Super Duty lineup featuring the robust 6.0L Power Stroke diesel engine. This piston ring set is specifically designed for applications needing a 0.040-inch oversize, making it an ideal solution for engines with worn cylinder bores. The increased diameter not only enhances sealing but also restores optimal compression, ensuring your engine operates at peak performance.

Precision engineering defines this product, with a bore size of 3.7795 inches (96.0 mm) that enables a perfect fit. The top ring utilizes a plasma-moly coated carbon steel for exceptional wear resistance, while the second ring is constructed from durable cast iron. The two-piece oil control ring, also made from cast iron, effectively manages oil consumption, preventing excessive blow-by and promoting engine longevity.

This piston ring set features a distinct material composition, with the upper compression ring crafted from carbon steel for strength, while ductile iron is used for the lower compression ring. The oil control ring, made from stainless steel, promotes corrosion resistance, ensuring lasting performance under harsh operating conditions. Each ring is meticulously designed with axial heights of 2.3 mm for the upper compression ring, 2.0 mm for the lower compression ring, and 3.44 mm for the oil control ring.

Ideal for various Ford models including the F-250, F-350, F-450, F-550 Super Duty, and select E-series vans, this set is essential for anyone looking to maintain or rebuild their engine. Please note that this set includes rings for one cylinder, requiring eight sets for a complete engine overhaul. Trust the quality and performance of MAHLE to keep your engine running strong.