Product Description
Cummins 4376345 OEM Engine Piston Kit (STD) – ISB 6.7L (2007.5–2018)
The Cummins 4376345 OEM Engine Piston Kit (STD) is a genuine Cummins replacement piston assembly designed for 2007.5–2018 6.7L ISB Cummins diesel engines. Manufactured to Cummins' exact specifications, this standard-size piston kit provides the durability, combustion efficiency, and reliability required for stock rebuilds, engine overhauls, and professional repair applications.
Whether you are rebuilding a high-mileage 6.7L Cummins or replacing damaged internal engine components, the 4376345 piston kit delivers factory-engineered fitment and performance. Genuine Cummins pistons are designed to maintain proper compression ratios, optimize fuel combustion, and provide long service life under demanding operating conditions.
Features
- Genuine Cummins OEM piston kit
- Standard size (STD) piston assembly
- Engineered for ISB 6.7L Cummins diesel engines
- Factory-specification replacement component
- Designed for engine rebuild and overhaul applications
- Maintains proper combustion chamber characteristics
- Supports factory compression specifications
- Manufactured for long-term durability and reliability
- Direct replacement for worn or damaged pistons
- Built to Cummins OEM quality standards
Fitment
- 2007.5–2018 Dodge Ram 2500 6.7L Cummins
- 2007.5–2018 Dodge Ram 3500 6.7L Cummins
- 2011–2018 Ram 2500 6.7L Cummins
- 2011–2018 Ram 3500 6.7L Cummins
- 2011–2018 Ram 4500 6.7L Cummins
- 2011–2018 Ram 5500 6.7L Cummins
- ISB 6.7L Cummins industrial applications
- Factory engine rebuild and overhaul applications
Note: This is a standard-size piston kit intended for engines with standard bore dimensions. Cylinder bore measurements should always be verified during engine rebuilding procedures to ensure proper piston selection.
What's Included
- Genuine Cummins 4376345 Standard Piston
- Factory-installed piston pin
- Retaining clips as supplied by Cummins
- OEM piston assembly components included by manufacturer
Specifications
- Manufacturer: Cummins
- Part Number: 4376345
- Product Type: OEM Engine Piston Kit
- Piston Size: Standard (STD)
- Engine Family: ISB 6.7L Cummins
- Engine Displacement: 6.7 Liter
- Fuel Type: Diesel
- Application: Engine Rebuild and Overhaul
- Fitment Years: 2007.5–2018
- OEM Replacement: Yes
- Construction: Genuine Cummins OEM Component
- Compression Ratio: Factory Specification
- Bore Size: Standard Bore
Cross Reference Numbers
4376345, Cummins 4376345, OEM Cummins Piston Kit, ISB 6.7L Standard Piston Assembly
FAQ
What engines does the Cummins 4376345 piston fit?
This piston kit is designed for Cummins ISB 6.7L diesel engines commonly found in 2007.5–2018 Ram trucks and various industrial applications.
Is this a standard-size piston?
Yes. The 4376345 is a standard-bore piston kit intended for engines that remain within factory bore specifications.
Can this piston be used in an overbored engine?
No. Engines that have been machined beyond factory bore specifications typically require oversized pistons. Always verify cylinder measurements before ordering.
Is this a genuine Cummins OEM part?
Yes. The 4376345 is a genuine Cummins OEM piston kit manufactured to original equipment specifications.
What is the benefit of using OEM Cummins pistons?
OEM pistons provide proper fitment, factory compression characteristics, durability, and reliability that meet Cummins engineering standards.
Should piston rings be replaced during installation?
Yes. During most engine rebuilds, new piston rings, bearings, gaskets, and related wear components should be installed to ensure proper engine performance and longevity.
