Buy 1999 Buick Century Engine Coolant Thermostat. 4.3L; V-8. 5.0L, 5.7L; Buick, Chevrolet. 5.0L, 5.7L Cooling, CYLINDER - OEM Buick Part # 12555290 (10223370)

1993-97. 8 CYLINDER. auxiliary. coolant level. engine air bleed. lower. main. radiator inlet. radiator outlet. reservoir. upper. w/2 way connector. w/8 way connector.

All Models; Auto Trans. All Models; Manual Trans. All Models; w/AC. All Models; w/o AC. All Models; w/o PS Cooling. All Models; w/PS Cooling.

All Models; Auto Trans. All Models; Manual Trans. All Models; w/Heavy Duty Cooling. All Models; w/o Heavy Duty Cooling. All Models; w/o ZR1 Option. All Models; w/ZR1 Option. Corvette; Auto Trans. Corvette; Manual Trans. Corvette; Surge Tank Cap. w/o ZR1; All. w/o ZR1; Front. w/o ZR1; Rear. w/ZR1; Eng To Tee. w/ZR1; Lower. w/ZR1; Tee To Rad. w/ZR1; Upper.

5. 7L; BUICK. 5. 7L; Cadillac. 5. 7L; W/HEAVY Duty Cooling. 5. 7L; W/O Heavy Duty Cooling. 5. 7L; W/O Silicone Rubber; Heavy Duty Cooling. 5. 7L; W/O Silicone Rubber; Standard Cooling. 5. 7L; W/SILICONE Rubber. All Models; Buick. All Models; Cadillac. Cadillac; 5.0L. Cadillac; 5.7L; Heavy Duty. Cadillac; 5.7L; Standard. Cadillac; Belt Driven. Cadillac; Electric Driven. Cadillac; Heavy Duty Cooling. Cadillac; Standard Cooling. Chevrolet. Olds; 4.3L; V-6. Olds; 4.3L; V-8; w/o Silicone Rubber. Olds; 4.3L; V-8; w/Silicone Rubber. Olds; 5.0L. Olds; Belt Driven. Olds; Electric Driven. Olds; w/Engine Oil Cooling; w/Low Level Indicator. Olds; w/Engine Oil Cooling; w/o Low Level Indicator. Olds; w/o Engine Oil Cooling; Heavy Duty; w/Low Level Indicator.