Replaces OEM #732GB4397P1. IMPORTANT: Please call toll-free 1-800-282-9319 to order. Please have the following information available when ordering: Truck Model, Last 6 Digits of Truck Serial Number, and Engine Assembly Number. The Engine Assembly Number will be located on the engine tag on the front valve cover of the engine and will start with 11GBA. ASSEMBLY,Cylinder Head (Standard Valves) Includes Head Assembly (1)ECH-3310 Springs (6)ESP-8151 (6)ESP-8160 Valves (3)EVA-8130 (3)EVA-8140 Locks (12)EVL-8195 Rotators (6)EVR-8325.