Hygrade CPA306 Carburetor Choke Pull-Off

Rochester 4 Bbl Carburetor Choke Pull-Off

The Hygrade CPA306 is a carburetor choke pull-off for Rochester 4 Bbl. carbs used on a wide range of Chevrolet and GMC trucks and vans. It is built for secondary choke control on Rochester M4MC and M4ME applications, helping restore proper cold-start and throttle response behavior.

• For Rochester 4 Bbl. carburetors
• Secondary choke pull-off application
• Direct replacement for many 1980-1987 Chevrolet and GMC vehicles
• Cross-reference part numbers include CP239 and CP351
• Hygrade part number CPA306

Application Coverage

Compatible With Rochester-carbureted Chevrolet and GMC applications across 1980-1987 model years, including many C/K-series trucks, Suburban, Blazer/Jimmy, G-series vans, and P-series chassis. Fits 1985-1987 Chevrolet G30, P20, P30, R30, and V30, secondary. Fits 1985-1987 GMC G3500, P2500, P3500, R3500, and V3500, secondary. Fits 1984 Chevrolet C10, C20, C30, G10, G20, G30, K10, K20, K30, K5 Blazer, P20, and P30, secondary. Fits 1984 GMC C1500, C2500, C3500, G1500, G2500, G3500, Jimmy, K1500, K2500, K3500, P2500, and P3500, secondary.

This part cross-references CP239 and CP351 for the same application.

What It Is Used For

• Restoring choke pull-off function on Rochester 4-barrel carburetors
• Correcting secondary choke operation during cold starts
• Addressing hard-start or rough-start conditions tied to choke control
• Replacing a worn or leaking choke pull-off on older carbureted trucks and vans
• Supporting proper drivability on Rochester M4MC and M4ME setups

Installation Notes and Tips

Verify the carburetor make and model before ordering. This part is listed for Rochester 4 Bbl. carbs and secondary choke pull-off applications; confirm the carburetor tag or casting numbers against your vehicle’s original setup, especially on emissions-specific 1980-1987 Chevrolet and GMC applications.

Quality Assurance

Hygrade has served the automotive aftermarket since 1919 and focuses on carburetion coverage and quality for restoration and repair needs. The CPA306 is built to support the fitment and function expected for Rochester carburetor service.