ATP Parts B-142 Transmission Filter Kit

Transmission Filter Kit for Nissan and Infiniti

ATP Parts B-142 is a Premium Replacement transmission filter kit built to help keep automatic transmission fluid clean as the transmission accumulates normal wear debris. Clean fluid helps protect the valve body and other internal components from clogging, which can reduce drivability issues and avoid preventable transmission repairs.

Compatible With select Nissan Frontier, Pathfinder, Xterra, Pickup, 300ZX, Mazda 929, and INFINITI QX4 applications, this ATP transmission filter kit is a direct-fit service part for routine transmission maintenance. This part cross-references Bosch (e.g., 15514, 15539) for the same application.

Key Features

• ATP Parts Premium Replacement transmission filter kit
• Designed for automatic transmission service on select Nissan and INFINITI vehicles
• Helps keep transmission fluid cleaner during normal operation
• Supports valve body and internal transmission component protection
• Fits applications that use a 9.5-inch filter length
• Includes pan gasket and filter for listed vehicle applications
• Part number: B-142

Detailed Description

ATP Parts B-142 is engineered for transmission service on select 1992-2004 Nissan and INFINITI models, including Nissan Frontier, Pathfinder, Xterra, Pickup, 300ZX, Mazda 929, and INFINITI QX4. The Premium Replacement line focuses on service parts that match the needs of common maintenance intervals, and this kit is built around keeping transmission fluid clean so debris does not build up in critical hydraulic passages.

Regular transmission filter replacement is an important part of maintaining fluid flow and reducing contamination inside the transmission. For shoppers searching for a transmission filter kit for Nissan Frontier, Pathfinder, or Xterra, ATP B-142 provides a fitment-specific service solution. Part number B-142 is also a useful reference when comparing replacement options for the same application.

What This Part Helps Address

• Dirty or contaminated transmission fluid
• Debris buildup in the valve body
• Restricted fluid flow through the transmission filter
• Maintenance-related transmission shifting concerns
• Wear-related service needs on older automatic transmissions

Installation Notes and Tips

• Verify transmission type before ordering; some listed applications note specific units such as R4AXEL and RE4R01A.
• Confirm the vehicle year, make, and model against the fitment list before installation.
• Inspect the transmission pan and mating surfaces during service for proper sealing.
• Replace the filter during routine transmission fluid service to maintain clean fluid circulation.

Quality Assurance

ATP Parts positions this kit within its Premium Replacement line for service-focused transmission maintenance. The design emphasis is on maintaining clean transmission fluid and supporting the long-term condition of internal transmission components through regular filter replacement.