Baldwin B39 Engine Oil Filter

Baldwin B39 Engine Oil Filter

The Baldwin B39 is an engine oil filter built for classic AMC, GM, and GMC applications, with confirmed fitment across a wide range of Jeep, Buick, Pontiac, Oldsmobile, Cadillac, Chevrolet, and related engines. It uses a 13/16 thread, a 4 3/8-inch height, and a 3 11/16-inch outside diameter to match the specified applications.

For buyers searching for a Baldwin B39 oil filter for Jeep Grand Wagoneer, Jeep CJ7, or Pontiac Firebird applications, this filter includes an anti-drainback valve and an attached gasket for the listed fitments.

Key Features

• Part number: B39
• Engine oil filter for AMC, GM Automotive, GMC, and International engine applications
• Contains an anti-drainback valve
• Attached gasket: G381-A
• Thread size: 13/16
• Height: 4 3/8 in. (111.1 mm)
• Outside diameter: 3 11/16 in. (93.7 mm)
• Related to Baldwin B9 long version
• Replaces GMC 6437462

Detailed Description

The Baldwin B39 is an engine oil filter specified for a broad range of older Jeep, Buick, Pontiac, Oldsmobile, Cadillac, Chevrolet, and GMC engine applications. It is a direct-fit style oil filter for vehicles such as the 1984-1986 Jeep Grand Wagoneer, 1976-1982 Jeep CJ7, 1967-1979 Pontiac Firebird, and 1968-1978 Oldsmobile Cutlass. The anti-drainback valve helps retain oil in the filter when the engine is shut off, and the attached gasket supports proper sealing at installation. This part number, B39, is also related to Baldwin B9 as the long version and replaces GMC 6437462.

This Baldwin B39 oil filter is a practical choice for owners maintaining original-style service parts on classic Jeep and GM vehicles. It is also a relevant search match for buyers looking for an oil filter for 1970s and 1980s Jeep Cherokee, Buick Skylark, Pontiac GTO, or Cadillac DeVille applications.

Vehicle Fitment

• Fits 1984-1986 Jeep Grand Wagoneer, N/A
• Fits 1980-1986 Jeep J10, N/A
• Fits 1980-1986 Jeep J20, N/A
• Fits 1976-1983 Jeep Cherokee, N/A
• Fits 1978-1983 Jeep Wagoneer, N/A
• Fits 1973 Jeep Wagoneer, N/A
• Fits 1976-1982 Jeep CJ5, N/A
• Fits 1973 Jeep CJ5, N/A
• Fits 1976-1982 Jeep CJ7, N/A
• Fits 1967-1980 Buick LeSabre, N/A
• Fits 1967-1980 Pontiac Bonneville, N/A
• Fits 1967-1980 Pontiac Catalina, N/A
• Fits 1980 Pontiac Laurentian, N/A
• Fits 1967-1979 Pontiac Firebird, N/A
• Fits 1967-1978 Buick Riviera, N/A
• Fits 1978 Cadillac Seville, N/A
• Fits 1976 Cadillac Seville, N/A
• Fits 1978 Chevrolet C10, N/A
• Fits 1978 Chevrolet C10 Suburban, N/A
• Fits 1978 Chevrolet C30, N/A
• Fits 1968-1978 Oldsmobile 98, N/A
• Fits 1971-1978 Oldsmobile Custom Cruiser, N/A
• Fits 1968-1978 Oldsmobile Delta 88, N/A
• Fits 1973-1977 Buick Century, N/A
• Fits 1973-1977 Buick Regal, N/A
• Fits 1975-1977 Buick Skylark, N/A
• Fits 1967-1972 Buick Skylark, N/A
• Fits 1968-1977 Oldsmobile Cutlass, N/A
• Fits 1971-1977 Oldsmobile Cutlass Supreme, N/A
• Fits 1973-1977 Oldsmobile Omega, N/A
• Fits 1976-1977 Oldsmobile Toronado, N/A
• Fits 1968-1974 Oldsmobile Toronado, N/A
• Fits 1967-1977 Pontiac Grand Prix, N/A
• Fits 1976-1977 Pontiac Laurentian, N/A
• Fits 1967-1977 Pontiac LeMans, N/A
• Fits 1976-1977 Pontiac Parisienne, N/A
• Fits 1977 Pontiac Phoenix, N/A
• Fits 1968-1976 Cadillac DeVille, N/A
• Fits 1968-1976 Cadillac Eldorado, N/A
• Fits 1968-1976 Cadillac Fleetwood, N/A
• Fits 1975 Oldsmobile 98, N/A
• Fits 1975 Oldsmobile Custom Cruiser, N/A
• Fits 1975 Oldsmobile Cutlass, N/A
• Fits 1975 Oldsmobile Cutlass Supreme, N/A
• Fits 1975 Oldsmobile Delta 88, N/A
• Fits 1975 Oldsmobile Toronado, N/A
• Fits 1973-1975 Pontiac Grand Am, N/A
• Fits 1967-1973 Pontiac GTO, N/A
• Fits 1967-1970 Pontiac Tempest, N/A

Common Uses

• Replacing a worn or incorrect oil filter on classic Jeep, Buick, Pontiac, Oldsmobile, Cadillac, or Chevrolet engines
• Addressing oil filtration service needs on vehicles with the specified 13/16-thread filter mount
• Restoring proper sealing with the attached gasket on listed applications
• Supporting oil retention after shutdown with the built-in anti-drainback valve
• Matching OE-style service requirements for vintage GM and Jeep maintenance

Installation Notes and Tips

Verify the thread size, height, and outside diameter against the existing filter before installation. Confirm the vehicle application against the fitment list, especially on classic GM and Jeep engines where service parts can vary by engine family. Clean the mounting surface, check the gasket seating area, and tighten the filter according to the vehicle service procedure.

Quality Assurance

Baldwin manufactures filtration products for automotive and heavy-duty service applications. The B39 is built to the listed dimensions and application data for direct replacement use on the confirmed vehicles above.