Replaces OEM #57GC2123A. 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. KIT,Pump,Water (Use for rebuilding EWP-3367 Assembly) Includes Bearings (1)EBG-3860 (1)EBG-3870 Shaft (1)ESH-3884 Slinger (1)ESL-3851 O-Ring (1)ERS-8480 Ring (1)ESR-2831 Rotor (1)ERW-0745 Seal (1)ESR-3372 Nut (1)ENU-0405 Gasket Kit (1)EGK-3845. Indicated in diagram example #22.