Piston Rings Piston and Ring Kit - 4.232 Bore, Set of 6

Features:

• Complete kit includes pistons and rings
• Designed for 6.7L Cummins 24V engines
• Cast aluminum pistons for strong durability
• Floating wrist pins and circlips included
• Oversized 0.50 mm for rebuild applications
• Dish-style pistons with no valve reliefs
• Ceramic chrome faced top rings resist wear
• Phosphate coated second rings reduce friction
• Standard tension oil rings for reliable sealing
• Built to OE specs for direct fitment
• Ideal for high-pressure diesel performance
• Sold as a complete set of six

Give Your Cummins The Reliable Rebuild It Deserves

When it’s time to bring your 6.7L Cummins back to life, you want components you can trust to go the distance. The Hastings PRK380250 Piston and Ring Kit is built for engine builders who won’t settle for second best. With cast aluminum pistons, floating wrist pins, and high-quality rings included, this complete set gives you everything needed for a solid bottom-end rebuild. Whether your truck hauls daily, runs tuned, or lives under heavy load, this kit delivers the strength and reliability diesel owners count on. Hastings has over a century of engine component expertise, and it shows in every detail of this kit. Designed for a factory-style fit and feel, it installs cleanly without surprises and performs like the OEM parts your truck came with. If you're rebuilding a 2009 to 2013 Cummins and want a trusted name behind your parts, this set is a smart choice that works as hard as your truck does.

Precision Matched Components Built For Long Term Durability

The PRK380250 kit from Hastings is engineered specifically for 2009 to 2013 Dodge RAM 6.7L Cummins applications using EJT ISB OCG 24-valve engines. It includes six cast aluminum dish-style pistons with no valve reliefs and comes standard with .50 mm oversized rings for engines requiring a fresh bore during rebuild. Each piston has a 4.232 inch bore and 69.40 mm compression height, matched with a 51.3 cc bowl volume and 13 mm bowl depth for proper combustion chamber geometry. The ring pack includes a ceramic chrome-faced ductile iron top ring, a phosphate-coated cast iron second ring, and a three-piece cast iron oil ring, all designed to maintain seal integrity under high pressure and temperature. Floating wrist pins and circlips are included for smooth assembly and proper pin retention. This kit is intended for use in stock stroke applications and follows OE tolerances for compression height and pin diameter. With proven ring materials and piston design, it’s a dependable solution for long-term performance in stock or lightly modified diesel builds.

Fitment: 2009, 2010, 2011, 2012, 2013 Dodge RAM 6.7L Cummins

Notes:

• Fits 2009-2013 Dodge RAM 6.7L Cummins engines
• Compatible with EJT ISB OCG 24V engine platforms
• Kit includes six pistons, rings, wrist pins, and clips
• .50 mm oversized pistons require matching bore size
• Pistons are dish-style with no valve reliefs
• Designed for stock stroke engine configurations
• Standard height pistons, not decked .010
• Top ring is ductile iron with ceramic chrome facing
• Second ring is cast iron with phosphate coating
• Oil ring is cast iron with standard tension design
• Floating wrist pins and retainers included for ease of install
• Not for use in gapless or file-fit ring setups