ATP Parts B-221 Transmission Filter Kit

Transmission Filter Kit for Nissan Applications

ATP Parts B-221 is a Premium Replacement transmission filter kit built to keep transmission fluid cleaner as the unit accumulates normal wear debris. Clean fluid helps protect the valve body and other internal components from clogging, which supports smoother operation and helps reduce avoidable transmission repairs.

Compatible With 2002-2006 Nissan Altima, 2004-2005 Nissan Quest, and 2003-2004 Nissan Maxima. This ATP Parts transmission filter kit is a direct-fit service solution for routine transmission maintenance on these Nissan models.

Key Features

• Transmission filter kit for service maintenance
• Premium Replacement line from ATP Parts
• Helps keep transmission fluid cleaner during normal wear
• Includes a pan gasket and filter for listed applications
• Length: 13 inches for the confirmed fitments
• Part number B-221 for easy identification

Product Details

ATP Parts B-221 is engineered for Nissan Altima, Nissan Quest, and Nissan Maxima transmission service where a clean filter is critical to fluid control and internal protection. The filter helps trap debris created over time by normal transmission wear, while the pan gasket supports a proper reseal during service. This part cross-references Dorman - HELP 58140 for the same application.

The Premium Replacement line is positioned for service work that calls for a dependable aftermarket fit and function. If you are searching for a Nissan Altima transmission filter kit, a Nissan Quest transmission filter kit, or a Nissan Maxima transmission filter kit, B-221 matches the listed vehicle coverage and service configuration.

Common Problems This Part Can Address

• Dirty transmission fluid from normal wear debris
• Restricted fluid flow caused by a clogged filter
• Valve body contamination that can affect shifting
• Transmission service needs during pan removal and reseal
• Preventive maintenance for older Nissan automatic transmissions

Installation Notes and Tips

Install this kit during a transmission pan service and verify the vehicle’s build date and transmission configuration before ordering. Confirm the 13-inch filter length against the existing unit, especially on 2006 Nissan Altima applications with the listed production-date notes. Clean the pan and mating surfaces thoroughly before reassembly to help the gasket seal correctly.

Quality Assurance

ATP Parts designs transmission filters to help maintain cleaner fluid and support transmission longevity through regular service. B-221 is a Premium Replacement part number for confirmed Nissan fitments and is backed by ATP Parts product engineering standards.