JE Pistons Toyota 4U-GSE 86.25mm Bore +.25mm Oversize 12.5:1 CR -1.3cc Dome FSR Piston (Set of 4)

Built from 2618 aluminum, these JE Pistons feature a 1.3cc dome and a 12.5:1 compression ratio, designed specifically for the Toyota 4U-GSE engine. This set includes four pistons, each measuring 86.25mm in bore diameter and at a +.25mm oversize, ensuring a precise fit for performance builds where enhanced power and durability are critical. The 2618 aluminum alloy is chosen for its high tensile strength, making it well-suited for the demands of high-performance applications.

JE Pistons incorporates its proprietary Forged Side Relief (FSR) design, which reduces skirt width and uses a shorter wrist pin to minimize friction and save weight. Depending on the specific application, an accumulator groove may be included to help manage combustion gas pressure, leading to better ring seal and consistent power delivery. Some applications also feature a skirt coating designed to further reduce friction and wear on the piston skirts and cylinder walls, while also contributing to quieter operation. Every component is forged and machined in the USA, reflecting JE Pistons' commitment to quality and performance.

This kit comes complete with high-quality wrist pins, locks, and JE Pro Seal premium piston rings, providing a ready-to-install solution for your engine rebuild. Please note that this product is not CARB approved and cannot be shipped to California.