The Chelsea 221XCDAP-A3XD or 221XCDAPA3XD is a 6-bolt Power Take-Off assembly from the Chelsea 221 Series, built for low-speed, heavy-duty vocational applications including dump trucks, tow and recovery, and aerial equipment. It uses a wire/cable mechanical shift and accepts a 1-1/4" round output shaft with keyway. Intermittent torque rating for the 221 Series reaches 250 lb-ft (339 Nm) -- verify actual rating on the Chelsea application pages for your specific configuration. Shaft power output is 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible transmissions span Allison, Eaton/Fuller, Volvo/Mack, Hino, and others. The cast iron housing is available in standard or low-profile configurations. A genuine Chelsea part, available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
The Chelsea 221 Series PTO features a cast iron housing and tapered cone output shaft bearings, providing greater load-bearing capability compared to needle bearing designs. Twenty-six output options are available across the 221 Series, including Chelsea's 360-degree rotatable flange. Three internal speed ratios and eleven shift options give this series broad compatibility across vocational truck applications such as dump trucks, tow and recovery, and aerial equipment. A self-lube option is available for transmissions with restricted lubrication to the PTO mounting pad.
Features
6-bolt mounting configuration for wide transmission compatibility including Allison, Eaton/Fuller, Volvo/Mack, Hino, and others
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque up to 250 lb-ft (339 Nm) -- check Chelsea application pages for your exact configuration
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Cast iron housing available in standard or special low-profile configuration; greaseable pump shafts reduce spline fretting and corrosion
Tech Specs
- Intermittent Torque: 250 lb-ft / 339 Nm (check Chelsea application pages for actual rating by configuration)
- 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, Other
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1,000 RPM (18 kW at 500 RPM, 36 kW at 1,000 RPM)
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The Chelsea 221 Series PTO features a cast iron housing and tapered cone output shaft bearings, providing greater load-bearing capability compared to needle bearing designs. Twenty-six output options are available across the 221 Series, including Chelsea's 360-degree rotatable flange. Three internal speed ratios and eleven shift options give this series broad compatibility across vocational truck applications such as dump trucks, tow and recovery, and aerial equipment. A self-lube option is available for transmissions with restricted lubrication to the PTO mounting pad.
