
Upgrade your 6.7L Cummins with the CP Pistons DH7106PRKH-HD Piston and Rod Kit, engineered for high-performance diesel builds that demand strength, efficiency, and improved rod dynamics. This precision-machined kit combines lighter, stronger components that optimize your engine’s rod-to-stroke ratio without the need for a deck plate.
Model: DH7106
Bore Size: 4.215″
Compression Ratio: 16:1 — ideal for diesel performance applications
Wrist Pin: 1.358″ diameter
Precision OEM-style fit with enhanced combustion efficiency
Lightweight piston design reduces reciprocating mass
Model: DCDM8335H
Designed specifically to work with a longer rod for improved rod-to-stroke ratio
Increased strength and rigidity compared to stock rods
Optimized geometry for performance and durability
Improved Rod-to-Stroke Ratio: Boosts torque potential and reliability under high loads
No Deck Plate Required: Simplifies installation and reduces overall rotating assembly weight
Weight Savings: Helps reduce piston and rod mass vs. OE components
Enhanced Durability: Built to withstand extreme duty and high-boost diesel setups
Fits:
Dodge Ram 2500/3500 with 6.7L Cummins
(Applications vary by year, tune, and other modifications — verify fitment before ordering.)
6 × CP Pistons DH7106 Pistons
6 × Rods (DCDM8335H)
Wrist pins, clips, rings (as required per kit specification)
Recommended professional installation
Match to block and crankshaft specs for optimal performance
Check cylinder head and ring gap clearances during assembly
CP Pistons is a trusted name in high-performance piston manufacturing, known for precision engineering, superior material quality, and proven performance in diesel and racing applications. Built to exceed OEM standards and handle serious power upgrades, CP Pistons products offer reliability you can depend on.