1972-1975 GM Truck 250 292 Rochester. 1-BBL Carburetor Choke Thermostat 170-977

CARTER 170-977. Condition: New - Other.
Interchange: 75; TH15; 779-648; 333992; 3998143
Fits Rochester 1BBL carburetors. Interchanges to: BWD TH15, Guaranteed Parts 779-648. Replaces OEM GM # 333992, 3998143.