Hygrade CV384 Carburetor Choke Thermostat

Carburetor Choke Thermostat for Ford

Hygrade CV384 is a carburetor choke thermostat for Ford applications with Holley carburetors. It is built for vehicles that need a direct choke thermostat replacement to help maintain proper cold-start choke operation and consistent carburetor performance.

With fitment across Ford and Mercury models from 1963 through 1982, this part number is a practical match for a wide range of classic carbureted engines. Hygrade CV384 also cross-references Standard Ignition TH237 for the same application.

Key Features

• Carburetor choke thermostat for Ford Holley 4150 and 4160 applications
• Electric assist: No
• Fits Ford and Mercury vehicles across multiple model years
• Direct replacement part number: CV384
• Backed by Hygrade aftermarket carburetion coverage since 1919

Detailed Description

Hygrade CV384 is a carburetor choke thermostat made for Ford make and model applications using Holley carburetors. It serves as the temperature-sensitive component that helps regulate choke function during cold starts, which is important for drivability on older carbureted engines. This part number is listed for a broad range of Ford F-Series trucks, Econoline vans, Mustang, Thunderbird, LTD, and several Mercury passenger vehicles, including Cougar, Marquis, Montego, Colony Park, Marauder, Capri, and Villager.

Fits 1979 Ford F-100, N/A. Fits 1979 Ford F-150, N/A. Fits 1965-1971 Ford Mustang, N/A. Fits 1967-1969 Mercury Cougar, N/A. Fits 1980-1982 Ford E-350 Econoline, N/A.

This part cross-references Standard Ignition TH237 for the same application.

What It Helps Address

• Hard cold starts caused by choke thermostat wear
• Choke operation that does not respond correctly as the engine warms
• Rough idle during warm-up on Holley-equipped Ford engines
• Fuel mixture issues related to improper choke control
• Restoration needs for classic Ford and Mercury carbureted vehicles

Installation Notes and Tips

Verify the carburetor make and model before ordering. This CV384 listing is for Ford applications with Holley carburetors, including 4150 and 4160 variants noted in the fitment data. Confirm the original choke thermostat style and any casting or carburetor codes listed in the vehicle notes to ensure the correct match.

Because fitment varies by year, engine package, and carburetor code, compare the existing part and application details before installation. The product is listed with no electric assist.

Quality Assurance

Hygrade has served the automotive aftermarket since 1919 and focuses on carburetion coverage for classic and replacement applications. CV384 is supported by that long-running product line and is cataloged for multiple Ford and Mercury fitments.