Coated & De-Lipped X-Series Piston Kit (.040)

Features:

• .040-inch oversize matched piston set
• Complete eight-piston engine rebuild kit
• Fits 2001-2016 6.6L Duramax engines
• Supports LB7 through LML applications
• De-lipped piston design
• Thermal barrier crown coating
• Low-friction anti-scuff skirt coating
• Premium PVD piston ring pack
• Includes rings wrist pins and clips
• Handles elevated boost and cylinder pressure
• Built for performance diesel applications
• Designed for drop-in installation

Built To Keep Big Power Working Hard Every Day

When your Duramax build is meant to handle serious abuse, choosing the right pistons is one of the most important decisions you can make. The Industrial Injection 44B112 Coated and De-Lipped X-Series Piston Kit is engineered for 2001-2016 6.6L Duramax engines requiring a .040 inch overbore, giving you a dependable solution for demanding rebuilds. This complete matched piston set includes pistons, rings, wrist pins, and retaining clips, helping eliminate the guesswork when gathering critical engine components. The thermal barrier coating protects the piston crown from extreme combustion temperatures, while the low friction anti scuff skirt coating helps reduce wear during cold starts and heavy operation. Furthermore, the de-lipped piston design is built for engines producing elevated boost and greater cylinder pressure, making it an excellent choice for performance focused trucks. Whether your Duramax spends its life pulling heavy trailers, making weekend passes at the track, or delivering dependable power on the street, this kit is designed to support those demands. It provides the durability and confidence needed to build an engine that is ready for whatever comes next.

Premium Engineering Designed For High Output Duramax Rebuilds

The Industrial Injection X-Series Coated and De-Lipped .040 Piston Kit is precision engineered for 2001-2016 GM 6.6L Duramax LB7, LLY, LBZ, LMM, and LML engines that have been machined for a .040 inch overbore. Every piston is manufactured as part of a matched set to help maintain balanced operation and consistent performance across all eight cylinders. Additionally, the premium PVD ring pack is designed to provide long lasting cylinder sealing while standing up to elevated boost, increased combustion pressure, and heavy towing demands. The thermal barrier coating on the piston crown helps reduce heat transfer into the piston, while the anti scuff skirt coating minimizes friction and promotes long term durability. The de-lipped piston profile is intended for high performance diesel applications where added strength and reliability are essential. Because the kit is designed as a drop in replacement for properly machined engine blocks, it simplifies the rebuilding process while maintaining precise fitment. Combined with proper machining practices and careful engine assembly, this piston kit delivers the durability and performance expected from a premium Duramax rebuild.

Fitment: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

Notes:

• This kit uses .040 inch oversize pistons.
• Engine machining is required for proper fitment.
• Confirm cylinder bore size before ordering.
• Fits 2001-2016 Duramax LB7 through LML engines.
• Includes a complete matched set of eight pistons.
• Includes rings, wrist pins, and retaining clips.
• Designed for properly prepared .040 overbore blocks.
• Built for elevated boost and cylinder pressure.
• Recommended for heavy towing and performance builds.
• Consult your engine builder for modified applications.
• Verify piston clearance before final engine assembly.
• Supersedes previous PDM-360.040 piston kit.