Shop OEM GENERAL MOTORS Part # 25535941. Engine Coolant Thermostat Housing. All Models; w/Hi-Output engine. Buick, Oldsmobile. Gas; 6 Cylinder; 3.8L. Engine Coolant Thermostat

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.

Gas; 6 Cylinder; 3.8L.

All Models; 1st Design; Left. All Models; 1st Design; Right. All Models; 2nd Design; Left. All Models; 2nd Design; Right. All Models; 3.0L. All Models; 3.8L. All Models; All. All Models; Left. All Models; MFI. All Models; Right. All Models; SFI. All Models; w/HD Cooling. All Models; w/Hi-Output engine. All Models; w/o HD Cooling. All Models; w/o Hi-Output Engine. Buick; Custom; 2 Door; w/HD Cooling. Buick; Custom; 2 Door; w/o HD Cooling. Buick; Custom; 4 Door; HD. Buick; Custom; 4 Door; Standard. Buick; Limited; w/HD Cooling. Buick; Limited; w/o HD Cooling. Oldsmobile; H.D. Cooling. Oldsmobile; Royal Brougham. Oldsmobile; Royal; 2 Door. Oldsmobile; Royal; 4 Door. Oldsmobile; Royal; Heavy Duty Cooling.

All Models; w/Hi-Output engine.