6BT X-Series Piston Kit (.040)

Features:

• Fits 1998.5-2002 5.9L Cummins 24V engines
• .040 inch oversize piston set
• Matched pistons support consistent performance
• Drop-in replacement for compatible rebuilds
• Includes rings wrist pins and clips
• Low friction anti scuff skirt coating
• Helps reduce piston skirt wear
• Ideal for OEM style rebuilds
• Supports dependable towing performance
• Designed for 6BT Cummins applications
• Suitable for reliable performance upgrades

Bring New Life Back Into Your Cummins Engine

Every successful engine rebuild starts with quality internal components, and the Industrial Injection X-Series .040 Piston Kit is built to help your 1998.5-2002 5.9L Cummins 24V perform with confidence again. This matched piston set is designed for engines that require a .040 inch oversize bore after machining, giving you a dependable solution for restoring proper piston to cylinder fit. Each kit arrives complete with rings, wrist pins, and clips, so you have the essential components needed to keep your rebuild moving in the right direction. Additionally, the low friction anti scuff skirt coating helps reduce wear during startup and everyday operation while promoting long lasting reliability. This stock replacement configuration is an excellent choice for owners rebuilding a work truck, tow rig, or daily driven Cummins that needs dependable performance without unnecessary modifications. The result is an engine that is ready to handle demanding miles with the durability you expect from a properly rebuilt 6BT. When reliability matters as much as power, this piston kit delivers the solid foundation your rebuild deserves.

Precision Engine Components For Oversize Rebuilds

The Industrial Injection X-Series .040 Piston Kit is engineered specifically for 1998.5-2002 5.9L Cummins 24V 6BT engines that have been machined for a .040 inch oversize piston. Every piston is matched to provide consistent fitment and balanced operation across all six cylinders, helping support smooth engine performance after assembly. Furthermore, the kit includes rings, wrist pins, and retaining clips, eliminating the need to source these critical installation components separately. The low friction anti scuff skirt coating helps minimize contact friction between the piston and cylinder wall, contributing to reduced wear over the life of the engine. Because this is the stock replacement version, it maintains the factory compression height and is intended for OEM style engine configurations. This makes it well suited for dependable rebuilds that do not require additional valve clearance or specialized piston designs. Before installation, verify that your engine block has been properly machined for a .040 inch oversize bore to ensure correct clearances and reliable long term performance.

Fitment: 1998.5, 1999, 2000, 2001, 2002 Dodge RAM 2500/3500 4WD 5.9L Cummins 24V

Notes:

• Designed for 1998.5-2002 5.9L Cummins 24V 6BT engines only.
• This listing is for the .040 inch oversize piston kit.
• Requires a .040 inch overbore engine block.
• Verify cylinder bore size before ordering.
• Confirm cylinder measurements after machine work.
• Maintains the factory compression height.
• Includes matched pistons, rings, wrist pins, and clips.
• Intended as a direct drop-in replacement for compatible engines.
• Not intended for builds requiring additional valve clearance.
• Consult your engine builder for modified engine applications.