Transmission repair kit TH400 / 3L80 - TransTec, for Jaguar vehicles and more

The TransTec repair kit for the TH400 automatic transmission (also known as the 3L80) is a complete overhaul kit designed to professionally recondition this classic, heavy-duty transmission. The kit includes all the necessary components needed for a successful repair, including the cork seal. The product is recommended for both workshops and individual users involved in gearbox overhauls.

Features and technical specifications

• Manufacturer: TransTec
• Case type: TH400 / 3L80
• Type set: Overhaul kit - without moulded pistons
• Product condition: New
• Includes cork gasket: Yes

Set composition

• Oil sump gasket (plug)
• Set of gaskets and O-rings
• Metal seals
• Sealing rings
• Other elements needed for full regeneration

Compatibility

The product fits TH400 / 3L80 gearboxes used in, among others:

• Jaguar XJ12 and other models from the 1970s-90s.
• RWD Chevrolet, GMC, Buick, Cadillac
• Off-road and utility vehicles equipped with the TH400

We recommend comparing part numbers or consulting a mechanic before purchasing.

Product benefits

• High-quality kit from the renowned TransTec brand
• Complete transmission rebuild package
• Gaskets resistant to high temperatures and transmission oils
• Perfect fit for the classic GM TH400 (3L80) box

Application and assembly

The kit is dedicated to professional and amateur regeneration of TH400 / 3L80 gearboxes. The assembly should be carried out by an experienced mechanic. It is recommended to use original ATF gear oil and to check the other components of the gearbox during assembly.

Summary

If you are planning a complete repair or reconditioning of your TH400 / 3L80 gearbox, this repair kit from TransTec is a proven and complete solution. Reliability, quality and accuracy make it one of the most frequently chosen kits on the market. Choose a professional approach to repair and ensure your transmission has a long, trouble-free life.