Truck transmissions by make

Pick the make on the tag, or call us with the model and serial number and we will tell you what fits.

Eaton Fuller

The Fuller Roadranger line is the transmission most class 8 trucks in North America leave the factory with, from the 9 and 10 speed road units to the 13, 15 and 18 speed heavy haul boxes and the 8LL for off-road work. See Fuller transmissions, or shop Eaton Fuller transmissions and Eaton transmission parts online.

Rockwell and Meritor

Rockwell built manual truck transmissions that were later sold under the Meritor name, and plenty of them are still in Freightliner, Kenworth, Peterbilt, International and Western Star trucks. See Rockwell transmissions and Meritor transmission parts.

Spicer

Spicer 5, 6 and 7 speed transmissions are common in medium duty trucks, International in particular. We carry Spicer transmissions and Spicer and TTC transmission parts. Model by model coverage for International trucks is on International truck transmissions.

Mack

Mack trucks often run Mack's own transmissions. We supply Mack transmissions and Mack transmission parts, new, used and rebuilt.

ZF and Clark

We also source ZF and Clark transmissions and parts. These are less common in North American trucks, so call with the model off the tag and we will find the unit or the part.

Heavy duty or medium duty?

Heavy duty generally means the class 8 tractor and vocational units with 9 to 18 speeds. Medium duty covers the 5, 6 and 7 speed boxes in class 6 and 7 trucks: Fuller mid-range models and the Spicer units in many International trucks. Automatics and automated manuals (auto shift) are in both classes. We handle all of them, and the tag tells us which one you have.