Coated & Chamfered ISB X-Series Piston Kit (.040)

Features:

• Fits 2003-2004 5.9L Cummins ISB engines
• .040 inch oversize piston configuration
• Coated and chamfered piston design
• Drop-in matched piston set
• Includes rings wrist pins and clips
• Thermal barrier piston top coating
• Low friction anti-scuff skirt coating
• Chamfered tops help reduce cylinder scuffing
• .015 inch reduced compression height
• Built for increased cylinder pressure
• Supports elevated boost and heavy towing
• Replaces previous PDM-3672CC.040 piston kit

Give Your Oversize Cummins The Protection It Earned

Building a dependable diesel starts with choosing components that are ready for the demands ahead, and the Industrial Injection X-Series Coated and Chamfered .040 Piston Kit is designed to do exactly that. Engineered for 2003-2004 5.9L Cummins engines machined .040 inch over, this piston kit combines factory style fitment with upgrades that help support more demanding applications. The thermal barrier coating helps manage combustion heat, while the low friction anti scuff skirt coating is designed to reduce wear during years of hard use. Chamfered piston tops also help reduce cylinder wall scuffing, giving your engine added protection when towing heavy loads or operating under increased boost. Every matched piston set includes rings, wrist pins, and clips, so you have the critical installation components needed to complete your rebuild with confidence. Furthermore, the reduced compression height makes these pistons an excellent choice for diesel enthusiasts looking to build a stronger engine without sacrificing reliability. If your .040 inch oversize Cummins rebuild deserves premium internal components, this Industrial Injection piston kit delivers the durability and performance your truck can depend on.

Purpose Built For High Demand Oversize Rebuilds

The Industrial Injection 244117 ISB X-Series Coated and Chamfered Piston Kit is engineered specifically for 2003-2004 Dodge Ram 2500 and 3500 models equipped with the 5.9L Cummins 24 valve ISB engine that has been machined for a .040 inch oversize bore. Manufactured as a matched piston set, these pistons install as direct drop in replacements while incorporating several performance oriented design improvements over conventional stock pistons. Each piston features a thermal barrier coating on the crown to help reduce heat transfer, while the low friction anti scuff skirt coating minimizes friction between the piston skirt and cylinder wall during operation. Additionally, the chamfered piston tops help reduce cylinder wall scuffing, contributing to improved durability under elevated cylinder pressures and demanding operating conditions. The .015 inch reduced compression height makes this piston kit well suited for applications running increased boost, heavy towing loads, and performance focused engine combinations. Every kit includes matching piston rings, wrist pins, and retaining clips to simplify installation and maintain proper component compatibility throughout the rebuild. For builders looking to combine a .040 inch oversize restoration with proven performance upgrades, this X-Series piston kit delivers the fitment, thermal protection, and long term durability expected from Industrial Injection.

Fitment: 2003, 2004 Dodge RAM 2500/3500 4WD 5.9L Cummins 24V

Notes:

• Designed for 2003-2004 5.9L Cummins 24V ISB engines.
• This kit uses .040 inch oversize pistons.
• The engine block must be machined for .040 inch pistons.
• Verify cylinder bore size before ordering.
• Compression height is reduced by .015 inch.
• Confirm compression height compatibility before installation.
• Check piston to valve clearance on modified engines.
• Recommended for elevated boost and cylinder pressure.
• Suitable for heavy towing and performance builds.
• Includes pistons rings wrist pins and clips.
• Consult your engine builder for modified applications.
• Supersedes previous PDM-3672CC.040 part number.