Buy OEM General Motors Part # 12555270 (10228271). Cover Assembly - Valve Rocker Arm. All Models; Left Bank. CAMSHAFT and TIMING. CRANKSHAFT and BEARINGS. CYLINDER HEAD and VALVES

Oil pan. Oil pump. 5. 7L; 2 Groove. 5. 7L; 3 Groove. All Models; 2WD. All Models; 4WD. All Models; 5.0L. All Models; 5.7L; (K). All Models; 5.7L; (M). All Models; 5.7L; All. All Models; 5.7L; Vin (K). All Models; Exhaust. All Models; Intake. All Models; Left Bank. All Models; No. 1. All Models; No. 2. All Models; No. 3. All Models; No. 5. All Models; Right Bank. Pick-Up; 5.0L. Pick-Up; All. Rear.