Help keep your automatic transmission’s shift control working as designed with the Pioneer Transmission Control Solenoid, part number 771002. It is a direct-fit replacement for a long list of classic cars, trucks and vans, including the 1965-1981 Cadillac DeVille, 1965-1977 Chevrolet Corvette, 1968-1982 Chevrolet C10 Suburban, 1969-1975 Chevrolet Camaro, 1972-1980 Bentley Corniche and 1975-1982 Checker Marathon. See the Buyer’s Guide tab for the full list and engine details.
- Exact-fit design: Pioneer builds its transmission components as exact-fit, no-compromise replacement parts.
- Electrical control: An electrically operated solenoid designed to respond to its control signal and help direct hydraulic fluid within the transmission.
- Broad coverage: 343 listed applications across Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Bentley, Checker and more.
If a failing transmission control solenoid is behind your shifting trouble, such as a missing downshift, delayed or erratic shifts, or a transmission that won’t shift as expected, this unit replaces it. Diagnose the cause before replacing, since shift problems can also come from wiring, fluid level or internal transmission issues.
