ATP Parts B-116 Transmission Filter Kit

Transmission Filter Kit for GM 3T40 and THM125 Applications

ATP Parts B-116 is a Premium Replacement transmission filter kit built to keep transmission fluid cleaner as miles add up. For vehicles like the Chevrolet Cavalier, Pontiac Sunfire, and Buick Century, regular filter service helps reduce debris buildup that can restrict fluid flow and affect internal transmission operation.

This ATP Parts transmission filter kit is a direct service part for a wide range of GM compact and midsize applications from 1980-2002. It is a practical choice for routine transmission maintenance on models using 3T40, THM125/M34, and THM125C configurations where specified.

Key Features

• Premium Replacement transmission filter kit from ATP Parts
• Helps keep transmission fluid cleaner during normal service intervals
• Supports valve body and internal component cleanliness by filtering wear debris
• Fits many Chevrolet, Pontiac, Buick, Oldsmobile, Cadillac, and Isuzu applications
• Part number B-116 for easy identification
• Cross-references Four Seasons 58952 and Gates 19593 for the same application

Detailed Description

ATP Parts B-116 is designed for transmission service on a broad range of GM vehicles, including Chevrolet Cavalier, Pontiac Sunfire, Buick Century, and related platforms. The filter helps capture debris created by normal transmission wear so fluid stays cleaner and critical passages remain less likely to clog. That matters because restricted fluid flow can affect valve body operation and other internal components.

Brand Line Premium Replacement identifies this as an OE-style service part for maintenance work where correct fit and dependable filtration are important. If you are servicing a 1982-2001 Chevrolet Cavalier, 1995-2001 Pontiac Sunfire, or 1991-1996 Buick Century, B-116 is a relevant transmission filter kit to verify against your transmission code and notes.

What It Helps Address

• Dirty transmission fluid from normal wear debris
• Restricted fluid passages caused by contamination
• Valve body performance issues related to clogged filtration
• Premature transmission wear from neglected service intervals
• Costly repairs tied to contaminated automatic transmission fluid

Installation Notes and Tips

• Confirm transmission type and notes before ordering; some applications specify 3T40, THM125/M34, or THM125C.
• Body fitment includes vehicles such as Fits 2002 Chevrolet Cavalier, N/A; Fits 1982-2001 Chevrolet Cavalier, N/A; Fits 1995-2001 Pontiac Sunfire, N/A; Fits 1991-1996 Buick Century, N/A.
• Inspect the pan and sealing surfaces during service and replace the filter during fluid maintenance.
• Use the vehicle notes to verify length and transmission-specific requirements before installation.

Quality Assurance

ATP Parts positions B-116 in its Premium Replacement line for service applications where accurate fitment and filtration performance matter. The manufacturer states that regular filter replacement helps extend transmission life by keeping fluid cleaner and reducing the chance of avoidable repair issues.