CUMMINS 4376345 OEM ENGINE PISTON KIT (STD) – ISB 6.7L (2007.5–2018)

Product Description

The Cummins 4376345 OEM Engine Piston Kit (Standard Bore) is a complete, genuine replacement piston assembly engineered for 2007.5–2018 ISB 6.7L Cummins engines. This OE piston kit is built to handle the extreme cylinder pressures, heat cycles, and long-duty operation characteristic of the 6.7L platform. Designed to maintain original compression, emissions compliance, and longevity, this piston kit is a must-have for any professional engine rebuild or top-tier restoration project where genuine Cummins integrity is required.

Each kit includes the piston, pin, and retaining clips, ensuring drop-in compatibility with standard bore 6.7L ISB applications. When rebuilding your engine, using OEM pistons eliminates uncertainty found with aftermarket castings and preserves factory durability, fuel efficiency, and performance characteristics.

Fitment

• 2007.5–2018 Dodge Ram 2500/3500 with 6.7L ISB Cummins
• Chassis cab & commercial 6.7L ISB platforms
• Industrial/off-highway 6.7L ISB applications (verify ESN)

Note: This is a standard bore piston kit. Always measure cylinder bores and confirm correct part number by engine serial number (ESN) before ordering.

Cross-Reference (Cummins-Only)

Related Cummins internal engine components:
• Cummins 3900267 Tappet Cover Bolt Grommet Seal
• Cummins 3903924 OEM Timing Pin
• Cummins 3900625 OEM Hex Flange Head Cap Screw

FAQ

Does this piston kit fit all 6.7L Cummins engines?

This kit fits 2007.5–2018 ISB 6.7L engines using standard bore pistons. Always verify by ESN for exact compatibility.

What is included in the Cummins 4376345 piston kit?

Each kit includes a standard bore piston, piston pin, and retaining clips. Rings may be sold separately depending on configuration.

Are piston rings included?

Some Cummins piston kits include rings, others do not. Verify contents before ordering. OEM ring sets are recommended for best results.

Can this piston be used with performance tuning?

While OEM pistons withstand high durability demands, heavy performance builds may require forged aftermarket options. For stock or towing use, OEM is ideal.

Is this piston coated?

Cummins pistons vary by batch and application. Many ISB pistons include skirt coatings for quieter operation and improved wear resistance.

Specifications for cummins 4376345