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JE Pistons forged piston set for the Toyota 4U-GSE, 86.25mm bore with +0.25mm oversize and a 12.5:1 compression ratio. These pistons use JE’s Forged Side Relief (FSR) design to reduce skirt friction and weight, and include accumulator grooves and optional skirt coating where applicable. Forged from 2618 aluminum in the USA, the kit ships with high-quality wrist pins, locks and JE Pro Seal rings for race-ready durability.
JE Pistons Toyota 4U-GSE 86.25mm Bore +.25mm Oversize 12.5:1 CR -1.3cc Dome FSR Piston (Set of 4)
