The Chelsea 221XCAHP-W5RF or 221XCAHPW5RF is a 221 Series Power Take-Off assembly built for low-speed, heavy-duty applications including dump trucks, tow and recovery, and aerial equipment. It mounts via a 6-bolt pattern and uses a wire/cable mechanical shift. The output shaft is a 1-1/4" round shaft with keyway. Intermittent torque for the 221 Series is rated at 250 lb-ft (339 Nm), verify actual torque against the application pages for your specific installation. Shaft power output is 24 HP at 500 RPM and 48 HP at 1000 RPM. Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, Hino, and others. The cast iron housing and tapered cone output bearings give this series strong load-bearing capability compared to needle-bearing designs. A greaseable pump shaft helps resist spline fretting and corrosion over time. Call us to confirm proper fit for your application.
The Chelsea 221 Series is designed for low-speed, heavy-duty vocational work including dump trucks, tow and recovery, and aerial applications. The cast iron housing and tapered cone output bearings deliver strong load capacity. Three internal speed ratios and a 360-degree rotatable flange option provide installation flexibility across a wide range of chassis configurations. The 221 Series also supports a self-lube option for transmissions with limited lubrication reach to the PTO pad.
Features
6-bolt mounting pattern, wire/cable mechanical shift
1-1/4" round output shaft with keyway
Intermittent torque: 250 lb-ft / 339 Nm (verify actual rating on application pages)
Shaft power: 24 HP at 500 RPM, 48 HP at 1000 RPM
Compatible with Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmission manufacturers
Greaseable pump shaft reduces spline fretting and corrosion; available in standard or low-profile housing
Tech Specs
- Intermittent Torque: 250 lb-ft / 339 Nm (check application pages for actual torque ratings)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Output Shaft Type: 1-1/4" Round with key
- Mounting Type: 6-Bolt
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1000 RPM / 18 kW at 500 RPM, 36 kW at 1000 RPM
- Compatible Transmissions: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
Additional Information
The Chelsea 221 Series is designed for low-speed, heavy-duty vocational work including dump trucks, tow and recovery, and aerial applications. The cast iron housing and tapered cone output bearings deliver strong load capacity. Three internal speed ratios and a 360-degree rotatable flange option provide installation flexibility across a wide range of chassis configurations. The 221 Series also supports a self-lube option for transmissions with limited lubrication reach to the PTO pad.
