Gears
At General Truck Parts, we maintain a comprehensive inventory of new and replacement gears for heavy-duty trucks and off-highway vehicles. Our selection spans transmission gears, differential gear sets (including ring & pinion assemblies), planetary gear assemblies, side gears and more – covering both popular models and hard-to-find applications. We source these components from industry-leading manufacturers like Eaton Fuller, Dana Spicer, Euroricambi, PAI, TTC, AxleTech, Fabco, and Meritor – brands recognized across the trucking and off-highway sectors for their precision, reliability, and OEM-level performance. Explore our full inventory of gears.
TOP Selling Gears
Fuller 4304510 Main Drive Gear
The Fuller 4304510 Main Drive Gear is an OEM-quality gear module designed for use in heavy-duty Fuller manual and automated transmissions.
Compatible with: Fuller 4302662, 4302662G, 4302662X | Mack 3088-4304510 | Meritor/Rockwell M134304510, M134304510P, M134302662 | PAI EF89530
Dana 046977 Helical Gear-Pinion
Dana 046977 OEM-grade replacement part.
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