The Chelsea 221XCAJP-A3RA or 221XCAJPA3RA is a 6-bolt mounted power take-off assembly from the Chelsea 221 Series, designed for low-speed, heavy-duty applications such as dump trucks, tow and recovery, and aerial equipment. It uses a wire/cable mechanical shift and delivers up to 250 lb-ft (339 Nm) intermittent torque, with shaft power rated at 24 HP at 500 RPM and 48 HP at 1000 RPM. The 1-1/4" round output shaft with keyway suits a wide range of hydraulic pump connections. Compatible transmissions include Allison, Eaton/Fuller, Volvo/Mack, Hino, and others. The cast iron housing is available in standard or low-profile configurations, and greaseable pump shafts help resist spline fretting and corrosion. Call us to confirm proper fit for your transmission and application.
The Chelsea 221 Series PTO features a cast iron housing with tapered cone bearings on the output shaft for strong load-bearing capability. The series offers twenty-six output options including a 360-degree rotatable flange, three internal speed ratios, and eleven shift options. A self-lube option is available for transmissions with restricted lubrication to the PTO. Typical applications include dump trucks, tow and recovery, and aerial equipment. Also referenced as part number SP221XCAJP-A3RA.
Features
6-bolt mounting, compatible with Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmissions
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque up to 250 lb-ft (339 Nm); verify actual rating on Chelsea application pages
Shaft power: 24 HP at 500 RPM, 48 HP at 1000 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 Chelsea 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
- Compatible Transmissions: Allison, Eaton/Fuller, Volvo/Mack, Hino, and others
- Shaft Power: 24 HP (500 RPM), 48 HP (1000 RPM) / 18 kW (500 RPM), 36 kW (1000 RPM)
Additional Information
The Chelsea 221 Series PTO features a cast iron housing with tapered cone bearings on the output shaft for strong load-bearing capability. The series offers twenty-six output options including a 360-degree rotatable flange, three internal speed ratios, and eleven shift options. A self-lube option is available for transmissions with restricted lubrication to the PTO. Typical applications include dump trucks, tow and recovery, and aerial equipment. Also referenced as part number SP221XCAJP-A3RA.
