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
• Includes rings wrist pins and clips
• Low-friction anti-scuff skirt coating
• Premium PVD piston ring pack
• Promotes reliable cylinder sealing
• Designed for drop-in installation
• Ideal for towing and street builds
• Supports dependable engine rebuilds
• Built for long-lasting durability

Give Your Rebuild The Strength To Go The Extra Mile

When your engine is already apart, it makes sense to rebuild it with components designed for dependable performance from day one. The Industrial Injection X-Series .040 Piston Kit gives your 2001-2016 6.6L Duramax the quality foundation needed for years of reliable service. This complete matched piston set comes with rings, wrist pins, and retaining clips, helping simplify the parts gathering process before assembly begins. The low friction anti scuff skirt coating helps reduce wear during startup and heavy operation, supporting smooth piston movement through countless miles. Additionally, the premium PVD ring pack is designed to provide excellent cylinder sealing for consistent engine performance under daily driving and towing conditions. Whether your truck is a dedicated workhorse or a dependable weekend hauler, this kit is built to deliver the durability needed for demanding use. For engines requiring a .040 inch overbore, it is a dependable solution that balances factory style fitment with long lasting reliability.

Carefully Engineered For Properly Machined Duramax Builds

The Industrial Injection 44B104 X-Series Piston Kit is designed specifically for 2001-2016 Duramax LB7, LLY, LBZ, LMM, and LML engines that have been machined for a .040 inch oversize bore. Every piston is manufactured as part of a precision matched set to promote balanced operation across all eight cylinders after installation. Furthermore, the premium PVD ring pack is engineered to provide dependable sealing while standing up to the demands of towing, heavy workloads, and everyday driving. The low friction anti scuff skirt coating helps minimize piston wear during cold starts and extended engine operation, contributing to improved long term durability. Because this kit is designed as a drop in replacement for properly machined engine blocks, it helps streamline the rebuilding process while maintaining OEM style fitment. It is an excellent choice for complete engine rebuilds where reliability and consistent performance are top priorities. Combined with proper machine work and careful assembly, this piston kit provides the confidence needed for a durable and dependable Duramax engine.

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 is the .040 inch oversize version.
• 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 piston set.
• Includes rings, wrist pins, and retaining clips.
• Designed for properly prepared engine blocks.
• Verify piston specifications before engine assembly.
• Modified builds should follow engine builder recommendations.
• Suitable for rebuilds, towing, and street applications.
• Supersedes previous PDM-360.040 piston kit.