Pioneer Cables 760012 Automatic Transmission Oil Pump O-Ring

Automatic Transmission Oil Pump O-Ring for GM Applications

Pioneer Cables 760012 is an exact-fit replacement automatic transmission oil pump O-ring for select rear-wheel-drive GM vehicles and light trucks. It is used at the LCS extension housing to case location, helping maintain a proper seal in the transmission assembly.

• Exact-fit replacement from Pioneer Transmission Components
• Automatic transmission oil pump O-ring for extension housing to case sealing
• Compatible with a wide range of 1976-1987 Buick, Chevrolet, Oldsmobile, Pontiac, Cadillac, GMC, and Isuzu applications
• Cross-references Dorman - HELP 13902 for the same application
• Part number 760012 for streamlined lookup and ordering

Fitment Details

• Fits 1978-1987 Buick Regal, LCS - Extension Housing To Case.
• Fits 1984-1987 Chevrolet Caprice, LCS - Extension Housing To Case.
• Fits 1977-1981 Chevrolet Caprice, LCS - Extension Housing To Case.
• Fits 1984-1987 Chevrolet El Camino, LCS - Extension Housing To Case.
• Fits 1978-1981 Chevrolet El Camino, LCS - Extension Housing To Case.
• Fits 1978-1987 Chevrolet Monte Carlo, LCS - Extension Housing To Case.
• Fits 1987 Oldsmobile Custom Cruiser, LCS - Extension Housing To Case.
• Fits 1984-1985 Oldsmobile Custom Cruiser, LCS - Extension Housing To Case.
• Fits 1978-1981 Oldsmobile Custom Cruiser, LCS - Extension Housing To Case.
• Fits 1985-1987 Oldsmobile Cutlass Salon, LCS - Extension Housing To Case.
• Fits 1977-1980 Oldsmobile Cutlass Salon, LCS - Extension Housing To Case.
• Fits 1977-1987 Oldsmobile Cutlass Supreme, LCS - Extension Housing To Case.
• Fits 1983-1987 Pontiac Grand Prix, LCS - Extension Housing To Case.
• Fits 1978-1981 Pontiac Grand Prix, LCS - Extension Housing To Case.
• Fits 1985-1986 Pontiac Acadian, LCS - Extension Housing To Case; Only Fits TH200, THM200, THM200/M29, THM200C/MV9.
• Fits 1983-1986 Pontiac Bonneville, LCS - Extension Housing To Case.
• Fits 1980-1981 Pontiac Bonneville, LCS - Extension Housing To Case.
• Fits 1983-1986 Pontiac Parisienne, LCS - Extension Housing To Case.
• Fits 1984-1985 Buick LeSabre, LCS - Extension Housing To Case.
• Fits 1977-1981 Buick LeSabre, LCS - Extension Housing To Case.
• Fits 1984-1985 Chevrolet Impala, LCS - Extension Housing To Case.
• Fits 1977-1981 Chevrolet Impala, LCS - Extension Housing To Case.
• Fits 1984-1985 Oldsmobile Cutlass Ciera, LCS - Extension Housing To Case; Only Fits TH200, THM200, THM200/M29, THM200C/MV9.
• Fits 1984-1985 Oldsmobile Delta 88, LCS - Extension Housing To Case.
• Fits 1977-1981 Oldsmobile Delta 88, LCS - Extension Housing To Case.
• Fits 1982-1984 Chevrolet Camaro, LCS - Extension Housing To Case.
• Fits 1980 Chevrolet Camaro, LCS - Extension Housing To Case.
• Fits 1976-1984 Chevrolet Chevette, LCS - Extension Housing To Case.
• Fits 1982-1984 Chevrolet S10, LCS - Extension Housing To Case.
• Fits 1983-1984 Chevrolet S10 Blazer, LCS - Extension Housing To Case.
• Fits 1982-1984 GMC S15, LCS - Extension Housing To Case.
• Fits 1983-1984 GMC S15 Jimmy, LCS - Extension Housing To Case.
• Fits 1976-1984 Pontiac Acadian, LCS - Extension Housing To Case.
• Fits 1980-1984 Pontiac Firebird, LCS - Extension Housing To Case.
• Fits 1978-1983 Chevrolet Malibu, LCS - Extension Housing To Case.
• Fits 1976-1982 Chevrolet LUV, LCS - Extension Housing To Case.
• Fits 1981-1982 Isuzu Pickup, LCS - Extension Housing To Case.
• Fits 1978-1981 Buick Century, LCS - Extension Housing To Case.
• Fits 1980-1981 Cadillac DeVille, LCS - Extension Housing To Case.
• Fits 1980-1981 Cadillac Fleetwood, LCS - Extension Housing To Case.
• Fits 1981 Chevrolet Bel Air, LCS - Extension Housing To Case; Only Fits TH200, THM200, THM200/M29, THM200C/MV9.
• Fits 1981 Oldsmobile 98, LCS - Extension Housing To Case.
• Fits 1977-1981 Oldsmobile Cutlass, LCS - Extension Housing To Case.
• Fits 1979-1981 Oldsmobile Cutlass Calais, LCS - Extension Housing To Case.
• Fits 1980-1981 Oldsmobile Cutlass Cruiser, LCS - Extension Housing To Case.
• Fits 1980-1981 Pontiac Catalina, LCS - Extension Housing To Case.
• Fits 1978-1981 Pontiac LeMans, LCS - Extension Housing To Case.
• Fits 1977-1980 Chevrolet Monza, LCS - Extension Housing To Case.
• Fits 1978-1980 Oldsmobile 98, LCS - Extension Housing To Case.
• Fits 1977-1980 Oldsmobile Starfire, LCS - Extension Housing To Case.
• Fits 1978-1980 Pontiac Grand Am, LCS - Extension Housing To Case.
• Fits 1976-1980 Pontiac Sunbird, LCS - Extension Housing To Case.
• Fits 1979 Chevrolet Nova, LCS - Extension Housing To Case.
• Fits 1976-1977 Chevrolet Nova, LCS - Extension Housing To Case.
• Fits 1977-1979 Pontiac Phoenix, LCS - Extension Housing To Case.
• Fits 1976-1978 Buick Skylark, LCS - Extension Housing To Case.
• Fits 1978 Cadillac Seville, LCS - Extension Housing To Case.
• Fits 1977 Buick Skyhawk, LCS - Extension Housing To Case.
• Fits 1977 Oldsmobile Omega, LCS - Extension Housing To Case.
• Fits 1977 Pontiac LeMans, LCS - Extension Housing To Case; Only Fits TH200, THM200, THM200/M29, THM200C/MV9.

What This O-Ring Helps Address

• Transmission fluid seepage at the extension housing to case sealing point
• Loss of seal integrity during transmission service or rebuild
• Leak-related fluid loss around the automatic transmission case interface
• Replacement of a worn or flattened oil pump O-ring during maintenance

Installation Notes and Tips

Verify transmission family and application notes before installation, especially on TH200, THM200, THM200/M29, and THM200C/MV9-equipped vehicles. Clean the sealing surfaces thoroughly and inspect the extension housing and case for damage before installing Pioneer Cables 760012.

Quality Assurance

Pioneer Transmission Components markets this part as an exact-fit replacement, built for direct application matching rather than modification. Use the part number 760012 and the vehicle-specific fitment notes to confirm the correct seal for your transmission service.