The Eaton 4300312BULK15 is a main shaft for the auxiliary section of heavy-duty manual transmissions, also referenced as 4300312-BULK15. Designed as a direct-fit component for the auxiliary transmission assembly, this shaft is sold individually. It is the same part cataloged under the NMFC category covering transmission and clutch parts, gears, and related drivetrain components. Drivetrain professionals who need an exact Eaton auxiliary main shaft for a manual transmission overhaul or service repair can source this part directly from Pro Gear and Transmission. Call us to confirm proper fit for your specific transmission assembly.
This unit is sold in packs of 15.
Features
Genuine Eaton auxiliary transmission main shaft
Fits the auxiliary section of heavy-duty manual transmissions
Part number: 4300312BULK15 or 4300312-BULK15
Sold individually (each)
Cross-referenced as FB4300312B
