MAHLE 42160.03 PISTON RING SET (.030) FOR 2011-2016 GM 6.6L DURAMAX ENGINE

The MAHLE 42160.03 piston ring set is designed for the 6.6L Duramax diesel engines found in 2011–2016 Chevrolet and GMC trucks, including models such as the Silverado 2500HD, Sierra 2500HD, and their 3500HD counterparts. This set is specifically for a 0.030-inch overbore application, making it suitable for engine rebuilds requiring this oversize.

? Specifications

• Bore Size: 4.085 inches (103.62 mm)

• Ring Configuration:

  • Top Ring: Stainless steel, gas nitrided

  • Second Ring: Cast iron, chrome faced

  • Oil Control Ring: Carbon steel, gas nitrided

• Material Grades:

  • Top Ring: UCR (Upper Compression Ring)

  • Second Ring: LCR (Lower Compression Ring)

  • Oil Control Ring: OCR

• Axial Heights:

  • Top Ring: 3.0 mm

  • Second Ring: 2.0 mm

  • Oil Control Ring: 3.0 mm

• Ring Type Codes:

  • Top Ring: RFK-12NG

  • Second Ring: BT-10UF

  • Oil Control Ring: MCL-42NGRW

• Set Includes: 24 rings (6 rings per cylinder for 4 cylinders)

• Sold As: Full set only
  

? Vehicle Fitment

This piston ring set is compatible with the following GM models equipped with the 6.6L Duramax diesel engine:

• 2011–2016 Chevrolet Silverado 2500HD/3500HD

• 2011–2016 GMC Sierra 2500HD/3500HD

Designed specifically for the 6.6L Duramax diesel engines in 2011-2016 Chevrolet and GMC trucks, the MAHLE 42160.03 piston ring set is an essential component for your engine rebuilds. Expertly crafted for a 0.030-inch overbore application, this set ensures optimal performance and longevity in your vehicle.

The piston ring set features a bore size of 4.085 inches (103.62 mm) and three distinct types of rings. The top ring is made from premium stainless steel with a gas nitrided finish, maximizing durability and sealing capabilities. The second ring, constructed from cast iron and chrome-faced, complements the top in maintaining efficient combustion. The oil control ring is made from carbon steel, also gas nitrided, ensuring effective lubrication management to reduce friction and enhance engine life.

Material grades are carefully selected for performance, with the upper compression ring designated as UCR, the lower compression ring as LCR, and the oil control ring as OCR. With an arrangement that includes 24 rings—six per cylinder for four cylinders—this full set is designed for convenience and ease of installation.

Axial heights for each ring are also defined, with the top ring measuring 3.0 mm, the second at 2.0 mm, and the oil control ring again at 3.0 mm. Each ring type is meticulously coded for identification—RFK-12NG for the top ring, BT-10UF for the second, and MCL-42NGRW for the oil control ring.

This piston ring set is fully compatible with the 2011-2016 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD vehicles equipped with the robust 6.6L Duramax engine. Ensure your engine operates at peak performance with the reliable quality of MAHLE piston rings.