Product Details

Master rebuild box kit for the 4R44E, 4R55E, 5R55E, and 5R44E automatic transmissions.

This kit fits Ford, Mercury, and Mazda applications.

For the 1994-up electronic, 4 and 5 speed overdrive transmissions

This high quality master rebuild kit contains:

• All BorgWarner friction clutch plates
• All Raybestos steel plates
• New fluid filter
• Intermediate band
• Overdrive band
• Reverse band
• All rubber lip seals
• All paper gaskets
• All O-rings
• All metal clad seals
• Teflon or steel sealing rings
• Duraprene pan gasket
• Front pump bushing
• Extension housing bushing

The Transtec gasket set included in this overhaul banner box kit is the highest quality available. The set includes every rubber seal, paper gasket, O-ring, sealing rings, and metal clad seals that you will need to complete your rebuild. The Transtec gasket sets are considered a premium kit, with the better Duraprene pan gasket, and higher quality gaskets and seals throughout.

Additionally, you can add the following upgrades to this overhaul rebuild kit:

• ATSG Rebuild manual – 4R44E or 5R55E book
• Transgo Shift Kit, Superior shift correction kit, or Sonnax Zip Kit
• Intermediate Servo – FB, EA, EB, DB, CA, CB, BB, AA, or AB code
• Overdrive servo – CA, CB, AA, AB, BB, or ZC code
• Torque Converter – USA Made
• Assembly Grease - Lubegard, Life Smart Blend, or Transjel
• Platinum Lubegard - Insider tip: Many shops use this synthetic supplement in every freshly rebuilt transmission to keep them on the road past the warranty.

1994-1996 were cross-over years to the electronic shift transmission. Email us for application information if you're not sure which one you need.

Remember to soak all of your clutches in transmission fluid for thirty minutes before you install them.

This kit works in the following Ford, Mazda, and Mercury and applications:

Ford

• Aerostar 1996-1997
• Explorer 4.0L 1995-2001
• Explorer Sport Trac 2001-2005
• Ranger 1995-2012

Mazda

• B2300 1994-2011
• B2500 1998-2001
• B3000 1994-2011
• B4000 1994-2011

Mercury

• Mountaineer 4.0L 1998-2001

This transmission was known by multiple names, codes or part numbers, including: 4R44E, 4R55E, 5R44E, and 5R55E.

The years covered by this kit include: 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, and 2011.