Total Seal Street Piston Rings - 4.212 in Bore - Cummins 57 using the best available components

using the best available components and the latest technology to ensure the highest levels of performance and longevity

Rocker Arm Ratio: 1

473 lb/in Spring Rate

Plastic Bumper Mount

eliminating any weight distribution issues that you might face

Total Seal Street Piston Rings - 4.212 in Bore - Cummins 57 using the best available componentsProduct Description: Piston Rings Street 4. 212 in Bore 2. 87 mm x 2. 5 mm in x 3. 46 mm Thick Standard Tension Steel Dodge Cummins Total Seal's patented Gapless Piston rings provide increased performance through unmatched sealing of the cylinder and combustion gasses in the combustion chamber. Increased horsepower and torque along with longer engine life are just a couple of the reasons why Total Seal's Gapless A Piston rings are the best rings