JE Pistons Ring Sets 1.2-1.5-3.0-103.37Brand JE Pistons Part Number JG31F8 4070 0 Category Engine Components Piston Rings Condition Brand New Original Manufacturer Packaging JE Piston Rings are designed to maximize horsepower through precision sealing of combustion pressure. They are offered in a huge selection of sizes, various materials, and in multiple thicknesses to suit a wide variety of engines. JE Pistons also offers an array of custom piston ring services including back cutting,