That are bought without using the carburetor #. Walker and Tomco both have online catalogs. DO YOUR RESEARCH>>. Be sure the part you are buying is correct for your application. There is two types used this year.
Original NOS Carter "Climatic Control" 1BBL Carter YFA Choke Thermostat 170-1239
NEW - OUT OF BOX - 170-1489 Carburetor Choke Thermostat - Carter BBD - 2BBL
CARTER WCD 2BBL CARBURETOR KIT 1941-1942 BUICK WITH DUAL CARBURETOR SETUP
New Old Stock NOS Carter 202-379 Carburetor Choke Pull-Off
NOS CARTER BBD CARBURETOR 8170S 1977 CHRYSLER DODGE PLYMOUTH 318 ENGINE
SET OF 2 NOS CARTER CARBURETOR JET TUBE 120-93S 42 PONTIAC 6 W/ 494-S 521-S ~
