WIX Racing Filters 58878 Automatic Transmission Filter Kit with Gasket

The WIX 58878 Automatic Transmission Filter Kit is a direct-fit replacement filter designed to keep your automatic transmission running clean and protected. Built to strict application-specific standards, this kit ensures complete filtration with no opportunity for unfiltered fluid to bypass the filtration media.

Key Features:

• Bypass-free filtration design — engineered so no unfiltered fluid can circumvent the application-specific filtration media
• Lock-seamed and sealed assemblies — precision construction ensures complete, reliable filtration at every service interval
• Includes application-specific gasket — black fiber sealing gasket formulated to work with modern, sophisticated automatic transmission fluids
• Protects shift control valves — proper filtration minimizes wear and prevents sticking and scoring of sensitive hydraulic components
• Guards against secondary damage — in the event of a component failure, the filter helps contain debris and minimize additional repair costs
• OEM cross-reference compatibility — replaces ACDelco PF171, ACDelco TF171, Fram FT1021, GM 12339134, GM 6258504, ATP B37, Baldwin 6021, Fleetguard HF6031, and many more
• Sold as a complete kit — includes filter and gasket for a full service replacement

WIX Filters has been a trusted name in filtration since 1939, delivering consistent protection for both domestic and import vehicles across automotive, light truck, and off-road applications. The WIX 58878 is compatible with GM THM250 and THM350 automatic transmissions and is the ideal choice for a thorough transmission fluid service.