JE Pistons 5-cylinder forged piston kit for Ford Focus ST 2.5L applications. Made and machined in the USA from 2618 aluminum, JE's FSR forging reduces skirt width and friction for lighter, stronger pistons suited to performance use. This version fits a 3.287" bore with an 8.50:1 inverted dome/dish crown. Kit includes wrist pins, locks and JE Pro Seal rings; accumulator groove and skirt coating options enhance ring sealing and reduce wear.
JE Pistons FOCUS ST 2.5 8.5:1 KIT Set of 5 Pistons