MAHLE 224-3732WR.040 PISTON WITH RINGS (.040) FOR 2007.5-2018 CUMMINS 6.7L ENGINE

A .040″ oversize, OEM-quality piston assembly with rings—designed for heavy-duty Cummins rebuilds. Includes piston, pre-installed top & oil rings, but typically sold per piece. Features a lightweight, expansion-controlled design using factory specs

 Fitment

• Engine: 6.7 L Cummins (2007.5–2018) 24-valve

• Vehicle Models: 2007.5–2018 Dodge Ram 2500–5500, chassis cabs

• Piston bore: 4.210″ (107 mm) +0.040″ oversize
  

 Specs & Features

• Oversize: +0.040″ (1.00 mm)

• Material: Aluminum with compensated grooves & expansion control

• Rings: Compression & oil rings pre-installed

• Skirt: Non-coated; choice of ceramic coating optional (+$50 at some vendors)
  

• Sold per piston, must order a full set of 6 pistons for inline‑6 engine rebuild

The MAHLE 224-3732WR.040 Piston with Rings is engineered to meet the rigorous demands of heavy-duty settings, specifically tailored for the Cummins 6.7L engine in models ranging from 2007.5 to 2018. This OEM-quality piston assembly features a .040″ oversize design, making it ideal for performance rebuilds that require precision and durability.

Crafted from high-quality aluminum, the piston is built with compensated grooves and has an expansion-controlled architecture that adheres to factory specifications for optimal performance. This ensures outstanding reliability and longevity, addressing the challenges associated with high-stress environments. The design includes pre-installed compression and oil rings, which help streamline the installation process and reduce the time and effort required for rebuilds.

With an impressive piston bore of 4.210″ (107 mm) and an oversize of +0.040″ (1.00 mm), the MAHLE piston fits seamlessly into a variety of vehicle models, including the Dodge Ram 2500 through 5500 and chassis cabs. The non-coated skirt design ensures that it withstands the rigors of heavy-duty use, while an optional ceramic coating is available for those seeking enhanced performance.

Each piston is sold individually, allowing for flexibility in purchasing. However, to completely rebuild an inline-6 engine, a full set of six pistons must be ordered. This piston assembly stands out with its lightweight design and top-notch craftsmanship, establishing itself as an essential component for anyone looking to enhance their Cummins engine's performance. Upgrade your engine rebuild today with the MAHLE 224-3732WR.040 Piston with Rings, and experience the difference in quality and performance.