Buy 1991 Buick Century Cover Assembly - Valve Rocker Arm. 5.3 & 6.2 LITER. Silverado, Sierra 2500 HD Right, HD, BEARINGS - OEM Buick Part # 12713810 (12689123, 12727455)

Oil cooler. Oil pan. Oil pump. Variable valve timing. Sierra; 4WD; 10 Speed. Sierra; 4WD; 6 Speed. Sierra; 4WD; 8 Speed. Sierra; 4WD; Left. Sierra; 4WD; Right. Sierra; 5MM Oversize; Left. Sierra; 5MM Oversize; Right. Sierra; Active. Sierra; Exhaust. Sierra; Intake. Sierra; L82. Sierra; L84. Sierra; Left. Sierra; Non-Active. Sierra; Right. Sierra; RWD; Left. Sierra; RWD; Right. Sierra; Standard Size; Left. Sierra; Standard Size; Right.

Oil cooler. Oil pan. Oil pump. Variable valve timing. Sierra 2500 HD; Exhaust. Sierra 2500 HD; Front Port. Sierra 2500 HD; Intake. Sierra 2500 HD; Left. Sierra 2500 HD; No. 1 & 5. Sierra 2500 HD; No. 2 & 4. Sierra 2500 HD; No. 3. Sierra 2500 HD; Oversized 0.5MM; Left. Sierra 2500 HD; Oversized 0.5MM; Right. Sierra 2500 HD; Right. Sierra 2500 HD; Standard; Left. Sierra 2500 HD; Standard; Right. Sierra 3500 HD; Exhaust. Sierra 3500 HD; Front Port. Sierra 3500 HD; Intake. Sierra 3500 HD; Left. Sierra 3500 HD; No. 1 & 5. Sierra 3500 HD; No. 2 & 4. Sierra 3500 HD; No. 3. Sierra 3500 HD; Oversized 0.5MM; Left. Sierra 3500 HD; Oversized 0.5MM; Right. Sierra 3500 HD; Right.

5. 3 & 6. 2 liter. 5. 3 liter.