ATP Parts B-126 Transmission Filter Kit

Transmission Filter Kit for GM Applications

ATP Parts B-126 is a transmission filter kit for GM trucks, SUVs, and vans with a 2-1/4" deep oil pan. It is built to keep transmission fluid cleaner by capturing wear debris before it can circulate through the valve body and other critical internal components.

For Chevrolet Silverado 1500, GMC Sierra 1500, and related applications, this premium replacement kit supports routine transmission service on vehicles from 2005 through 2014.

Key Features

• Transmission filter kit for 2-1/4" deep oil pan applications
• Includes 1 pan gasket and 1 filter
• 9.5" length and 2.25" height
• Premium Replacement line from ATP Parts
• Direct service part for GM transmission maintenance

Why This Filter Kit Matters

Transmission fluid carries heat and lubricates moving parts, but normal wear creates debris that can restrict flow and contaminate internal passages. Replacing the filter at service intervals helps keep fluid cleaner, protects the valve body from clogging, and reduces the risk of transmission wear that leads to expensive repairs. ATP Parts B-126 is a practical service part for maintaining transmission performance in Chevrolet Express, Silverado, Tahoe, GMC Savana, Sierra, Yukon, and other listed vehicles.

This part cross-references Wix 42241 and Bosch 18089 for the same application.

Common Problems It Can Address

• Restricted transmission fluid flow from debris buildup
• Contamination in the valve body and internal passages
• Harsh or inconsistent shifting caused by dirty fluid service intervals
• Premature wear from neglected transmission maintenance
• Service replacement needs on 2-1/4" deep pan GM transmissions

Installation Notes

Verify pan depth and transmission application before installation. This kit is listed for vehicles with a 2-1/4" deep oil pan, so confirm the pan style on the vehicle before service. Clean the pan and mating surfaces thoroughly during installation, and follow the vehicle manufacturer’s service procedure for fluid level checks after reassembly.

Compatible With 2005-2014 Chevrolet Express 1500, 2005-2009 Chevrolet Express 2500, 2006-2009 Chevrolet Express 3500, 2005-2013 Chevrolet Silverado 1500, 2006-2013 GMC Sierra 1500, and other listed GM applications.

Quality Assurance

ATP Parts positions B-126 in its Premium Replacement line for transmission service applications. The filter is intended to help keep transmission fluid clean so critical components stay free of clogging and wear-related contamination.