Uremco 3-3256 Carburetor

Rochester 4MV Carburetor Replacement

Uremco 3-3256 is a carburetor replacement for classic Chevrolet and GMC applications that use a Rochester 4MV setup. It is listed for a wide range of 1969-1979 trucks, vans, SUVs, and passenger cars, making it a direct-reference option for restoration and drivability repairs.

• Uremco carburetor, part number 3-3256
• For Rochester 4MV applications with a 1/4 threaded hole in the base
• Fits a broad range of Chevrolet and GMC carbureted vehicles from 1969-1979
• Use OEM part verification to confirm the correct application before ordering
• Relevant for classic truck, van, and performance car fuel system service

Vehicle Fitment

• Fits 1979 Chevrolet C10, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet C10 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1971 Chevrolet C10 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1969 Chevrolet C10 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet C20, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet C20 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1971 Chevrolet C20 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1969 Chevrolet C20 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet C30, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet El Camino, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1971 Chevrolet El Camino, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1969 Chevrolet El Camino, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet G10, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet G20, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet G30, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet K10, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet K10 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1971 Chevrolet K10 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1969 Chevrolet K10 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet K20, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet K20 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1971 Chevrolet K20 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1969 Chevrolet K20 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet K30, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet K5 Blazer, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet P20, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 Chevrolet P30, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC C1500, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC C1500 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC C2500, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC C2500 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC C3500, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC G1500, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC G2500, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC G3500, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC Jimmy, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1971 GMC Jimmy, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC K1500, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC K1500 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC K2500, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC K2500 Suburban, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC K3500, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC P2500, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1979 GMC P3500, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1971 Chevrolet Blazer, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1969 Chevrolet Blazer, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1971 GMC G15/G1500 Van, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1971 GMC G25/G2500 Van, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1971 GMC G35/G3500 Van, N/A — Carb 4MV, 1/4 Threaded Hole in Base, Check OEM for Our Part Number
• Fits 1969-1970 Chevrolet Bel Air, N/A
• Fits 1969-1970 Chevrolet Camaro, N/A
• Fits 1969-1970 Chevrolet Caprice, N/A
• Fits 1969-1970 Chevrolet Corvette, N/A
• Fits 1970 Chevrolet El Camino, N/A — Carburetor 4MV, Rochester
• Fits 1969-1970 Chevrolet Impala, N/A
• Fits 1970 Chevrolet Monte Carlo, N/A
• Fits 1969-1970 Chevrolet Nova, N/A
• Fits 1969 Chevrolet K20 Suburban, N/A — Carburetor 4MV, Rochester

Common Repair Uses

• Replacing a worn or malfunctioning Rochester 4MV carburetor
• Restoring throttle response on a classic Chevrolet C10 or GMC Jimmy
• Addressing fuel delivery issues on carbureted trucks and vans
• Correcting drivability problems on vintage El Camino, Camaro, or Corvette applications
• Servicing original-style carburetion on 1969-1979 GM vehicles

Installation Notes

Verify the OEM number and confirm the carburetor style before installation. This application references a 4MV carburetor with a 1/4 threaded hole in the base, so matching the original unit is important for proper fitment. For classic Chevrolet and GMC vehicles, compare the existing carburetor casting and mounting details against Uremco 3-3256 before ordering.

Quality Assurance

Uremco 3-3256 is cataloged as a replacement carburetor for specific GM applications and should be matched to the vehicle’s original Rochester 4MV configuration. This part cross-references Rochester 4MV applications for the same style of use.