ATP Parts B-56 Transmission Filter Kit

Transmission Filter Kit for GM Front-Wheel-Drive Applications

ATP Parts B-56 is a premium replacement transmission filter kit built to help keep automatic transmission fluid clean. For vehicles such as the Buick Century, Chevrolet Cavalier, and Pontiac Grand Am, maintaining clean fluid is critical to protecting the valve body and other internal components from debris created by normal wear.

ATP Premium Replacement parts are positioned for direct-fit service work where accurate fitment and dependable filtration matter. This B-56 transmission filter kit is specified for a wide range of GM compact and midsize front-wheel-drive applications from 1980-1990.

Key Features

• Transmission filter kit for automatic transmission service
• Premium Replacement line from ATP Parts
• Designed to help keep transmission fluid clean
• Helps reduce debris buildup that can restrict internal passages
• Length: 11.625 in.
• Compatible with select Buick, Chevrolet, Oldsmobile, Pontiac, and Cadillac applications

Detailed Description

The ATP Parts B-56 transmission filter kit is a service replacement for vehicles that rely on clean automatic transmission fluid to maintain proper hydraulic operation. Over time, normal wear can introduce debris into the fluid, and that contamination can affect the valve body and other critical transmission components. Regular filter replacement helps maintain fluid cleanliness and supports long-term transmission service life. This part cross-references Gates 19708 for the same application.

Compatible With 1982-1990 Buick Century, 1980-1990 Buick Skylark, 1982-1990 Chevrolet Cavalier, 1982-1990 Chevrolet Celebrity, 1987-1990 Chevrolet Corsica, 1990 Chevrolet Lumina, 1990 Chevrolet Lumina APV, 1988-1990 Oldsmobile Cutlass Calais, 1982-1990 Oldsmobile Cutlass Ciera, 1987-1990 Oldsmobile Cutlass Cruiser, 1990 Oldsmobile Cutlass Supreme, 1990 Oldsmobile Silhouette, 1982-1990 Pontiac 6000, 1985-1990 Pontiac Grand Am, 1990 Pontiac Grand Prix, 1988-1990 Pontiac LeMans, 1986-1990 Pontiac Sunbird, 1987-1990 Pontiac Tempest, and 1990 Pontiac Trans Sport. Additional coverage includes 1982-1989 Buick Skyhawk, 1982-1988 Cadillac Cimarron, 1982-1988 Oldsmobile Firenza, 1984-1988 Pontiac Fiero, 1985-1987 Oldsmobile Calais, 1984-1985 Chevrolet Citation II, 1984-1985 Pontiac J2000 Sunbird, 1980-1984 Oldsmobile Omega, 1980-1984 Pontiac Phoenix, 1980-1983 Chevrolet Citation, and 1982-1983 Pontiac J2000.

What It Helps Address

• Dirty or contaminated transmission fluid
• Debris buildup inside the transmission filter
• Restricted fluid flow through internal passages
• Valve body contamination from normal wear
• Service intervals for aging GM automatic transmissions

Installation Notes and Tips

Verify transmission application and filter length before installation. The fitment notes include a THM125C-specific application for 1987-1990 Pontiac Tempest, so confirm transmission type when ordering. Use the vehicle’s service information to match the correct pan and filter configuration before reassembly.

Quality Assurance

ATP Parts Premium Replacement components are built for service applications where accurate fitment and consistent function are important. The B-56 is engineered as a replacement transmission filter kit for the listed GM vehicles and transmission service needs.