The Eaton Fuller Castle Nut, part number X2-500 or X2500 (also cross-referenced as HFX2-500), is a genuine Eaton manual transmission component used in transmission gear service. Castle nuts are a standard fastener in manual transmission assemblies, designed to accept a cotter pin or safety wire to prevent loosening under load. This part falls under Eaton's manual transmission components category. Pro Gear and Transmission carries genuine Eaton Fuller parts for heavy-duty drivetrain service. Call us to confirm this is the correct nut for your transmission application.
Features
Genuine Eaton Fuller manual transmission castle nut
Part number X2-500 or X2500, also referenced as HFX2-500
Designed for use in manual transmission gear assemblies
Sold individually (unit of measure: each)
Available from Pro Gear and Transmission
