Fuller 4304514 Mainshaft Drive Gear

The Fuller 4304514 is an OEM-grade mainshaft drive gear designed for use in Eaton Fuller heavy-duty manual transmissions, specifically within select RT and RTO series gearboxes. This gear serves a vital role in transmitting engine torque from the input shaft to the countershaft and mainshaft assemblies, ensuring precise gear engagement and dependable power transfer across all drive ranges.

Manufactured to Eaton’s rigorous engineering standards, the 4304514 features high-strength alloy steel construction and precision-machined gear teeth to deliver long-lasting durability and reliable performance in both highway and vocational applications. It is heat-treated to withstand high torque loads, extended duty cycles, and demanding service conditions encountered in Class 7 and Class 8 trucks.