Buy Cadillac Fleetwood Engine Coolant Thermostat. 4.9 LITER. All Models; 4.5L, 4.9L. All Models; 4.9L COOLING, Models, LITER - OEM Cadillac Part # 3539588 (03539588, 3528974)

4. 9L; Left. 4. 9L; Lower. 4. 9L; Right. 4. 9L; Upper. 4. 9L; W/HEAVY Duty Cooling. 4. 9L; W/O Heavy Duty Cooling. 6 Cylinder; 180 Degrees. 6 Cylinder; 195 Degrees. 6 Cylinder; ALL. 6 Cylinder; Left. 6 Cylinder; Right. 8 Cylinder; Left. 8 Cylinder; Right. 8 Cylinder; W/HD Cooling. 8 Cylinder; W/O hd Cooling. All Models; 3.8L; Left. All Models; 3.8L; Right. All Models; 3.8L; w/HD Cooling; w/o Reminder Package. All Models; 3.8L; w/HD Cooling; w/Reminder Package. All Models; 3.8L; w/o HD Cooling; w/o Reminder Package. All Models; 3.8L; w/o HD Cooling; w/Reminder Package. All Models; 3.8L; w/o Supercharger. All Models; 3.8L; w/Supercharger. All Models; 4.5L. Buick. Cadillac.