Hygrade CV151 Carburetor Choke Thermostat

Carburetor Choke Thermostat for Carter Carburetors

The Hygrade CV151 carburetor choke thermostat is built for carbureted Ford and Mercury applications that use Carter carburetors. It features a male blade terminal with a single terminal connection for straightforward electrical hookup in the correct application.

• Carburetor choke thermostat for air and fuel delivery systems
• Male blade terminal design
• Single-terminal electrical connection
• Fits Carter carburetor applications listed below
• Hygrade CV151 replacement part

Fitment Coverage

• Fits 1978 Mercury Monarch, N/A, w/ Carter Carb.; YFA; 7209, D8DE-EA
• Fits 1977 Mercury Monarch, N/A, w/ Carter Carb.; YF, YFA; 7162, 7294, D7BE-FA, D7PE-FA
• Fits 1977 Mercury Monarch, N/A, w/ Carter Carb.; YF, YFA; 7127, 7160, 7164, 7188, 7194, 7206, 7297, 7303, 7313, D7BE-BA, BC, HB, NA, D7DE-DA, DD, GC, D7PE-ASA, EA, MA
• Fits 1976 Mercury Monarch, N/A, w/ Carter Carb.; YF, YFA; 7075, 7077, 7127, D5DE-AAA, AAB, DA, DB, GA, GB, ZA, ZB
• Fits 1975 Mercury Monarch, N/A, w/ Carter Carb.; YF, YFA; 7070-7071, 7126, D5DE-NA, NB, RA, RB, D5PE-AUA
• Fits 1975 Mercury Monarch, N/A, w/ Carter Carb.; YF, YFA; 7023, 7031, 7055, 7072, 7075, 7077, 7127, D5DE-AAA, AAB, DA, DB, EA, EB, FA, FB, GA, GB, MA, MB, YA, ZA, ZB, D5PE-ATA
• Fits 1972-1974 Ford E-100 Econoline, N/A, w/ Carter Carb.; YF; D4TE-YA, D4UE-KA
• Fits 1971-1974 Ford F-100, N/A, w/ Carter Carb.; YF; D4TE-YA, D4UE-KA
• Fits 1971-1974 Ford F-250, N/A, w/ Carter Carb.; YF; D4TE-YA, D4UE-KA
• Fits 1971-1974 Ford F-350, N/A, w/ Carter Carb.; YF; D4TE-YA, D4UE-KA

Detailed Description

Hygrade CV151 is a carburetor choke thermostat for classic Ford and Mercury vehicles equipped with Carter carburetors. This part is used in 1971-1974 Ford F-100, F-250, and F-350 trucks, 1972-1974 Ford E-100 Econoline vans, and 1975-1978 Mercury Monarch models with the specified Carter YF or YFA carburetor applications. Hygrade has served the automotive aftermarket since 1919, focusing on carburetion coverage and replacement quality for vintage fuel system service.

This part cross-references Standard Ignition TH151 for the same application.

Common Repair Uses

• Restores choke thermostat operation on Carter carburetors
• Addresses hard cold starts caused by choke control issues
• Helps correct rich or lean cold-running behavior
• Supports proper choke opening during warm-up
• Replaces a worn or failing thermostat in carbureted Ford and Mercury applications

Installation Notes and Tips

Verify the carburetor model and casting numbers before ordering, since fitment depends on the exact Carter YF or YFA application listed. Match the terminal style and connection layout to the original part, and confirm the vehicle application against the notes for your Ford or Mercury model. Use the listed interchange references only as a cross-check for the same application.

Quality Assurance

Hygrade is an established aftermarket manufacturer with long-standing coverage in carburetion parts. CV151 is produced for the specified classic vehicle applications and carburetor configurations shown above.