Mahle JV742 Engine Main Bearing Gasket Set

Mahle JV742 Engine Main Bearing Gasket Set

Mahle JV742 is an engine main bearing gasket set built around rope packing sealing material and a two-piece seal style. It includes the rear main cap seal and is intended for applications that call for a rope packing rear main seal in classic GM, Pontiac, Buick, Oldsmobile, Cadillac, and Jeep engines.

Mahle gaskets are used by OEMs and technicians worldwide for dependable engine sealing. If you are servicing a Buick Riviera, Pontiac Grand Prix, or Oldsmobile Cutlass with a rope packing rear main seal, JV742 provides the sealing components specified for those applications.

Key Features

• Part number JV742
• Engine main bearing gasket set with gasket included
• Rope packing gasket material and rope packing seal material
• Two-piece seal style
• Includes rear main cap seal
• Fits applications that use a rope packing rear main seal

Product Details

This Mahle JV742 set is focused on rear main sealing service for engines that use rope packing construction. The included gasket and rear main cap seal support proper sealing at the crankshaft rear main area, where oil control is critical. Cross-reference part numbers include Fel-Pro BS 13044-2 and Rol RS29065 for the same application.

Compatible vehicle coverage includes many classic and late-model GM platforms, along with Jeep CJ5 and Wagoneer applications. Common search terms for this part include rear main seal gasket set for 1980-1985 Chevrolet Caprice, Buick Regal rope packing seal, and Pontiac Grand Prix rear main cap seal. Mahle JV742 also appears in fitment for Buick LeSabre, Oldsmobile Delta 88, and Pontiac Bonneville applications.

What It Helps Address

• Rear main oil leakage at the crankshaft seal area
• Oil seepage from worn rope packing sealing material
• Loss of sealing integrity during engine rebuild or reseal work
• Service replacement for engines requiring a two-piece rear main seal
• Fitment-specific sealing needs on classic Buick, Pontiac, Oldsmobile, Cadillac, Chevrolet, and Jeep engines

Installation Notes and Tips

Verify engine code, crankshaft seal style, and gasket layout before installation. This part is listed for rope packing seal applications, and some fitments note that it is not included in the full set. Clean the sealing surfaces thoroughly, follow the engine builder’s procedure for rope packing installation, and confirm rear main cap alignment before final assembly.

Quality Assurance

Mahle supplies sealing products used by OEMs and professional technicians around the world. JV742 is built as an engine sealing component for applications that require a rope packing rear main seal and rear main cap seal coverage.

• Fits 1989-1990 Buick Century, N/A
• Fits 1959-1990 Buick LeSabre, N/A
• Fits 1988-1990 Buick Reatta, N/A
• Fits 1980-1990 Buick Riviera, N/A
• Fits 1963-1976 Buick Riviera, N/A
• Fits 1989-1990 Buick Skylark, N/A
• Fits 1985-1990 Oldsmobile 98, N/A
• Fits 1981-1983 Oldsmobile 98, N/A
• Fits 1989-1990 Oldsmobile Cutlass Calais, N/A
• Fits 1989-1990 Oldsmobile Cutlass Ciera, N/A
• Fits 1989-1990 Oldsmobile Cutlass Cruiser, N/A
• Fits 1977-1990 Oldsmobile Delta 88, N/A
• Fits 1986-1990 Oldsmobile Toronado, N/A
• Fits 1981-1984 Oldsmobile Toronado, N/A
• Fits 1975 Oldsmobile Toronado, N/A
• Fits 1978-1990 Pontiac Bonneville, N/A
• Fits 1963-1976 Pontiac Bonneville, N/A
• Fits 1989 Pontiac Firebird, N/A
• Fits 1971-1981 Pontiac Firebird, N/A
• Fits 1973-1988 Buick Century, N/A
• Fits 1986-1988 Buick Skylark, N/A
• Fits 1976-1979 Buick Skylark, N/A
• Fits 1961-1972 Buick Skylark, N/A
• Fits 1988 Oldsmobile Cutlass Calais, N/A
• Fits 1978-1984 Oldsmobile Cutlass Calais, N/A
• Fits 1982-1988 Oldsmobile Cutlass Ciera, N/A
• Fits 1987-1988 Oldsmobile Cutlass Cruiser, N/A
• Fits 1980-1983 Oldsmobile Cutlass Cruiser, N/A
• Fits 1976-1987 Buick Regal, N/A
• Fits 1973-1974 Buick Regal, N/A
• Fits 1983-1987 Chevrolet Monte Carlo, N/A
• Fits 1978-1981 Chevrolet Monte Carlo, N/A
• Fits 1985-1987 Oldsmobile Calais, N/A
• Fits 1977-1987 Oldsmobile Cutlass Supreme, N/A
• Fits 1985-1987 Pontiac Grand Am, N/A
• Fits 1979 Pontiac Grand Am, N/A
• Fits 1973-1975 Pontiac Grand Am, N/A
• Fits 1978-1987 Pontiac Grand Prix, N/A
• Fits 1963-1976 Pontiac Grand Prix, N/A
• Fits 1986 Oldsmobile Cutlass Salon, N/A
• Fits 1978-1980 Oldsmobile Cutlass Salon, N/A
• Fits 1980-1985 Chevrolet Caprice, N/A
• Fits 1980-1985 Chevrolet Impala, N/A
• Fits 1981-1985 Pontiac Parisienne, N/A
• Fits 1976 Pontiac Parisienne, N/A
• Fits 1970-1974 Pontiac Parisienne, N/A
• Fits 1978-1984 Chevrolet El Camino, N/A
• Fits 1978-1983 Chevrolet Malibu, N/A
• Fits 1981-1982 Cadillac Eldorado, N/A
• Fits 1980-1982 Cadillac Fleetwood, N/A
• Fits 1981-1982 Cadillac Seville, N/A
• Fits 1980-1981 Chevrolet Camaro, N/A
• Fits 1979-1981 Oldsmobile Cutlass, N/A
• Fits 1977 Oldsmobile Cutlass, N/A
• Fits 1961-1981 Pontiac Catalina, N/A
• Fits 1975-1981 Pontiac Grand LeMans, N/A
• Fits 1976-1981 Pontiac LeMans, N/A
• Fits 1970-1974 Pontiac LeMans, N/A
• Fits 1975-1980 Buick Skyhawk, N/A
• Fits 1978-1980 Chevrolet Monza, N/A
• Fits 1976-1980 Oldsmobile Starfire, N/A
• Fits 1976-1980 Pontiac Sunbird, N/A
• Fits 1977-1979 Oldsmobile Omega, N/A
• Fits 1978-1979 Pontiac Phoenix, N/A
• Fits 1976 Pontiac Laurentian, N/A
• Fits 1970-1974 Pontiac Laurentian, N/A
• Fits 1970-1973 Pontiac GTO, N/A
• Fits 1966-1971 Jeep CJ5, N/A
• Fits 1968-1971 Jeep Wagoneer, N/A
• Fits 1961-1962 Pontiac Tempest, N/A