atp automotive TF-37 Transmission Filter Kit for GM TH-350 (1969–1986) — Complete Gaskets & Hardware, OE Fit

This ATP kit supplies the filter, gaskets, and installation components needed to perform a proper transmission filter change on compatible TH-350 applications. Built to match or surpass original equipment specifications, the TF-37 removes contaminants and helps maintain fluid cleanliness without the worry of incorrect fitment. The kit is focused on reliability and durability, providing the parts needed for a straightforward service that restores proper filtration function.

What parts come with the TF-37 kit and why do they matter?

The ATP TF-37 kit includes the transmission filter itself plus all necessary gaskets and hardware to complete a standard filter replacement for the TH-350. Having the matched components in one package prevents missing parts and reduces installation time.

• Replacement transmission filter sized for TH-350 units
• Sealing gaskets to prevent fluid leaks
• Installation hardware where required for correct fit
• Parts matched to OE fit and mounting points

How does this filter protect a TH-350 transmission?

The filter traps abrasive particles, residue and moisture that can accelerate wear inside the valve body, clutch packs, and pump. By keeping contaminants out of circulating fluid, it reduces the risk of premature component failure and helps maintain consistent hydraulic function.

• Catches metallic and non-metallic debris circulating in ATF
• Helps prevent clogging of fluid passages and valves
• Minimizes corrosion risk from moisture and contaminants
• Designed for durability under typical operating conditions

Will the TF-37 fit my vehicle and how easy is installation?

ATP engineered the TF-37 specifically to replace the original equipment filter used in 1969–1986 GM TH-350 transmissions, so compatibility with those models is assured. Installation follows standard TH-350 service procedures; anyone comfortable with basic transmission maintenance can complete the swap with common tools.

• Direct-fit replacement for standard TH-350 housings
• No modifications required for compatible models
• Includes gaskets to ensure correct sealing during install
• Installation time varies by vehicle but typically completed during a routine service

What performance and quality features does the kit offer?

The TF-37 is manufactured from materials selected to resist fatigue and remain reliable under normal service conditions. ATP claims the kit meets or exceeds original equipment standards, which supports consistent filtration and long-term component life when used as part of regular maintenance.

• Materials chosen for durability and fatigue resistance
• Engineered to control contaminant ingress and moisture
• Quality-tested to match OE dimensions and mounting
• Intended for routine maintenance intervals on TH-350 units

Who is this for? The ATP TF-37 kit is aimed at DIY mechanics, restoration shops, and professional technicians working on classic GM vehicles equipped with the TH-350 transmission from 1969 through 1986. It is suitable for anyone replacing a worn or clogged built-in transmission filter who wants a direct-fit, OEM-style replacement kit that includes the necessary gaskets and hardware to complete the job efficiently.