Product Details

Master rebuild box kit for the TH125 and TH125C automatic transmissions.

Fits GM, Buick, Cadillac, Chevrolet, Oldsmobile, Opel, and Pontiac

This kit is for the 1980-2000 3 speed automatic transmission

This high quality transmission master overhaul rebuild kit contains

• All friction clutch plates
• All steel clutch plates
• 2nd gear intermediate band
• Fluid filter
• Case bushing
• All rubber lip seals
• All paper gaskets
• All O-rings
• All metal clad seals
• Teflon and steel sealing rings
• Duraprene pan gasket

The Transtec gasket overhaul set contained within this kit is the highly rated available and used by most shops.

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

This overhaul kit works in the following Buick, Cadillac, Chevrolet, Oldsmobile, Opel, and Pontiac applications:

• 6000 1982-1991
• Achieva 1992-1995
• Beretta 1987-1996
• Calais 1985-1987
• Cavalier 1982-1998
• Celebrity 1982-1990
• Century 1982-1996
• Cimarron 1982-1988
• Citation 1980-1983
• Citation II 1984-1985
• Corsica 1987-1993
• Custom Cruiser 1982-1994
• Cutlass Calais 1988-1991
• Cutlass Ciera 1982-1996
• Cutlass Cruiser 1991-1993
• Fiero 1984-1988
• Firenza 1982-1988
• Grand Am 1985-1995
• J2000 1982-1983
• J2000 Sunbird 1985
• LeMans 1988-1993
• Lumina 1990-1994
• Lumina APV 1990-1994
• Montana 2000
• Omega 1980-1984
• Phoenix 1980-1984
• Silhouette 1990-1999
• Skyhawk 1982-1993
• Skylark 1985-1995
• Sunbird 1987-1994
• Sunfire 1995
• Trans Sport 1990-1998

This three speed automatic transmission is known by multiple names, including: TH-125, TH125, M34, TH-125C, 3T40, TH-125, MD9