Part number 4221390 is a Dana Spicer Reaction Member designed for off-highway axle and transmission applications. This component is also cataloged by Allison Off Highway under the same part number (vendor reference LY4221390), placing it in the Auxiliary Transmission Cover category for off-highway drivetrain assemblies. The reaction member serves a structural and load-bearing role within the transmission assembly, holding reaction forces generated during gear engagement. If you need help confirming this part fits your specific off-highway unit, call Pro Gear and Transmission before ordering.
Features
Dana Spicer part number 4221390
Also cataloged as Allison Off Highway LY4221390
Designed for off-highway axle and transmission applications
Falls under Auxiliary Transmission Cover category for off-highway drivetrain assemblies
Sold individually as a single unit
Available from Pro Gear and Transmission
Tech Specs
- Part Number: 4221390
- Vendor Part Number (Allison Off Highway): LY4221390
- Application: Off-highway axle and transmission
- Category: Auxiliary Transmission Cover, Transmission Components
- Unit of Measure: Each
