Wix 58840 Transmission Filter Kit

Wix 58840 Transmission Filter Kit

The Wix 58840 transmission filter kit is built for automatic transmissions that need clean, controlled fluid flow and dependable filtration. It is a direct-fit service part for select Ford Ranger, Mazda B3000, Mazda B4000, and related applications, with application-specific sealing components for a precise service replacement.

Key Features

• Automatic transmission filter kit for light-duty service applications
• Lock-seamed and sealed construction helps keep unfiltered fluid from bypassing the media
• Application-specific sealing components support a proper transmission service fit
• Includes sealing gaskets designed for modern automatic transmission fluids
• Closed inner diameter top style
• Class D, duty type LD

Detailed Description

Wix 58840 is an automatic transmission filter kit engineered around the filtration needs of specific Ford and Mazda truck and SUV platforms. It is designed to maintain fluid cleanliness inside the transmission by routing fluid through the filter media rather than around it. That makes it a practical service part for vehicles such as the Ford Ranger, Mazda B3000, and Mazda B4000, where correct filtration and sealing are important during transmission maintenance.

This part cross-references Motorcraft FT111 and FRAM FT1115A for the same application. The Wix 58840 transmission filter kit is also listed for select Ford Explorer, Explorer Sport Trac, Aerostar, Mustang, Bronco, Bronco II, and Mazda Navajo applications, depending on year and transmission code.

What It Helps Address

• Dirty or restricted transmission fluid flow
• Service intervals that call for filter replacement
• Fluid bypass caused by worn or poorly sealing filter assemblies
• Transmission maintenance on Ford Ranger and Mazda B-series trucks
• Transmission service on select Ford Explorer and Mustang applications

Installation Notes and Tips

• Verify the transmission code and model year before ordering, especially on 5R55E and A4LDE applications.
• Inspect the pan, gasket surfaces, and sealing points before reassembly.
• Drain and refill with the correct automatic transmission fluid specified for the vehicle.
• Confirm fitment for the exact Ford Ranger, Mazda B3000, or Mazda B4000 configuration listed in the vehicle catalog.

Quality Assurance

Wix transmission filter kits are built with lock-seamed, sealed assemblies and application-specific sealing components to support complete filtration in automatic transmissions. The 58840 follows Wix’s OE-style approach to fit and filtration for service work on confirmed applications.