4L80E/ TH400 Parts

Shop quality new, used and remanufactured 4L80E and TH400 automatic transmission parts at Auto Transmission Hub. The 4L80E is GM's heavy-duty 4-speed automatic transmission used in high-torque applications from 1991 to 2013, including the Chevrolet Silverado 2500/3500, GMC Sierra 2500/3500, Chevrolet Express van, GMC Savana van, Hummer H1, and various commercial and performance vehicles. The TH400 (Turbo-Hydramatic 400) is a legendary 3-speed automatic used from 1964 onward in GM trucks, muscle cars, and off-road builds.

Compatible engines include the 6.5L diesel, 7.4L V8, 8.1L V8, 6.0L V8, and high-performance LS applications. Common parts include torque converters, valve bodies, solenoids, input shafts, output shafts, pump assemblies, clutch drums, sun gears, and transmission cases.

All parts are inspected before shipping. Ideal for heavy-duty trucks, towing applications, and performance builds.