The Eaton Fuller Square Key, part number 21303, is a genuine OEM manual transmission component used in Eaton Fuller gearbox assemblies. Square keys are precision-cut drive components that lock gears, hubs, or shafts in rotational alignment, preventing slippage under load. This part is sold individually (each). If you are building up a transmission or replacing a worn or damaged key during a gear or shaft service, having the correct OEM square key on hand keeps the job straight. Pro Gear and Transmission carries genuine Eaton Fuller components. Call us to confirm this is the right key for your specific build.
Interchanges:
- HF21303
Features
Genuine Eaton Fuller OEM part number 21303
Square key design for gear, hub, or shaft rotational alignment
Sold individually - unit of measure: each
Compatible with Eaton Fuller manual transmission applications
Tech Specs
- Part Number: 21303
- Part Type: Square Key
- Unit of Measure: Each
- Application: Eaton Fuller Manual Transmission
