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

Features:

• Fits 2004.5-2007 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
• .100 inch fly cut valve reliefs
• Supports higher lift camshafts
• Thermal barrier piston top coating
• Low friction anti-scuff skirt coating
• .015 inch reduced compression height
• Added piston to valve clearance
• Built for high performance diesel builds

Give Your Performance Rebuild The Clearance It Needs

When you're building a Cummins that is expected to handle serious power, every internal component plays an important role in the final result. The Industrial Injection X-Series Fly Cut Coated and Chamfered .040 Piston Kit is designed for 2004.5-2007 5.9L Cummins engines that have been bored .040 inch over and need the strength to support demanding applications. With a thermal barrier coating on the piston crown and a low friction anti scuff skirt coating, these pistons are built to help manage heat while reducing wear throughout the engine's service life. The .100 inch fly cut valve reliefs provide valuable piston to valve clearance for engines equipped with higher lift camshafts, giving builders greater flexibility when selecting valvetrain components. Every kit includes matched pistons, rings, wrist pins, and clips, so you can move forward with confidence knowing the essential components are included. Additionally, the chamfered piston tops help reduce cylinder wall scuffing, making this kit an excellent choice for trucks that see hard towing, aggressive tuning, or high performance driving. If your .040 inch oversize rebuild deserves premium piston technology from the inside out, this Industrial Injection kit is built to deliver.

Engineered For Oversize High Output Cummins Applications

The Industrial Injection 245124 ISB X-Series Fly Cut Coated and Chamfered Piston Kit is manufactured specifically for 2004.5-2007 Dodge Ram 2500 and 3500 trucks equipped with the 5.9L Cummins 24 valve ISB engine that has been machined for a .040 inch oversize bore. This matched piston set is engineered as a direct drop in replacement while incorporating several upgrades intended for demanding diesel engine combinations. Each piston features a thermal barrier coating that helps control combustion heat, while the low friction anti scuff skirt coating is designed to reduce friction between the piston and cylinder wall during operation. Furthermore, the chamfered piston tops help minimize cylinder wall scuffing, and the .015 inch reduced compression height supports engines operating with increased cylinder pressure and elevated boost levels. Integrated .100 inch fly cut valve reliefs provide additional piston to valve clearance for applications using higher lift camshafts or other valvetrain upgrades that require extra clearance. Every kit also includes matching piston rings, wrist pins, and retaining clips to simplify installation and maintain component compatibility throughout the rebuild. For builders assembling a .040 inch oversize Cummins with performance focused upgrades, this piston kit offers the durability, precision, and clearance needed to support reliable power.

Fitment: 2004.5, 2005, 2006, 2007 Dodge RAM 2500/3500 4WD 5.9L Cummins 24V

Notes:

• Designed for 2004.5-2007 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.
• Includes .100 inch fly cut valve reliefs.
• Confirm piston to valve clearance before installation.
• Verify compatibility with higher lift camshafts.
• Compression height is reduced by .015 inch.
• Confirm compression height matches your engine build.
• Includes rings, wrist pins, and retaining clips.
• Consult your engine builder for modified applications.
• Supersedes previous PDM-3673FCC.040 part number.