The Chelsea 221XCAJP-W3RA or 221XCAJPW3RA is a 221 Series Power Take-Off assembly built for low-speed, heavy-duty service on vocational trucks. It mounts via a 6-bolt pattern and shifts by wire/cable mechanical actuation. The 1-1/4" round output shaft accepts a standard keyway. Intermittent torque rating for this series reaches 250 lb-ft (339 Nm); check application pages for the actual rating confirmed to your vehicle. Shaft power is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible transmission families include Allison, Eaton/Fuller, Hino, and Volvo/Mack. The cast iron housing is available in standard or low-profile configuration. Greaseable pump shafts help resist spline fretting and corrosion in demanding cycles. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
The Chelsea 221 Series is designed for tow and recovery, dump truck, and aerial applications. Its cast iron housing and tapered cone output shaft bearings provide greater load-bearing capability compared to needle bearing designs. The 360-degree rotatable flange option and multiple internal speed ratios make the 221 Series adaptable across a wide range of vocational truck configurations. A self-lube option is available for transmissions with restricted PTO port lubrication. Continuous operation is supported with a 30% de-rating applied.
Features
6-bolt mounting pattern compatible with Allison, Eaton/Fuller, Hino, and Volvo/Mack transmissions
Wire/cable mechanical shift actuation
1-1/4" round output shaft with keyway
Intermittent torque up to 250 lb-ft (339 Nm) - verify rating for your specific application
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Available in standard or low-profile housing; greaseable pump shafts reduce spline fretting and corrosion
Tech Specs
- Intermittent Torque: 250 lb-ft / 339 Nm (check application pages for actual rating)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Output Shaft Type: 1-1/4" Round with keyway
- Transmission Compatibility: Allison, Eaton/Fuller, Hino, Volvo/Mack
- Mounting Type: 6-Bolt
- Shaft Power: 24 HP at 500 RPM / 48 HP at 1,000 RPM (18 kW at 500 RPM / 36 kW at 1,000 RPM)
Additional Information
The Chelsea 221 Series is designed for tow and recovery, dump truck, and aerial applications. Its cast iron housing and tapered cone output shaft bearings provide greater load-bearing capability compared to needle bearing designs. The 360-degree rotatable flange option and multiple internal speed ratios make the 221 Series adaptable across a wide range of vocational truck configurations. A self-lube option is available for transmissions with restricted PTO port lubrication. Continuous operation is supported with a 30% de-rating applied.
