The Chelsea 221 Series Power Take-Off Assembly, part number 221XCAJP-W4XK or 221XCAJPW4XK, is a 6-bolt mounted PTO built for low-speed, heavy-duty work. 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. Output is through a 1-1/4" round shaft with key. The cast iron housing uses tapered cone output bearings for greater load capacity compared to needle bearing designs, and greaseable pump shafts limit spline fretting and corrosion in demanding cycles. Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, Hino, and others. Available in standard or low-profile housing configurations. A genuine Chelsea part from Pro Gear and Transmission. Call us to confirm proper fit for your application.
The Chelsea 221 Series PTO suits aerial, dump truck, tow and recovery, and vocational municipal equipment applications. 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 marginal PTO lubrication delivery. Continuous operation is supported with a 30% de-rating applied to the intermittent torque rating.
Features
6-bolt mounting type for direct transmission interface
Wire/cable mechanical shift operation
1-1/4" round output shaft with key
Intermittent torque rating: 250 lb-ft (339 Nm) - verify actual rating on application pages
Shaft power: 24 HP at 500 RPM, 48 HP at 1000 RPM
Greaseable pump shafts to reduce spline fretting and corrosion
Available in standard or low-profile housing configuration
Tech Specs
- Intermittent Torque: 250 lb-ft / 339 Nm (check application pages for actual torque ratings)
- Shift Type: Wire/Cable, Mechanical
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with Key
- Output Power: 46-55 HP / 31-40 kW
- Shaft Power: 24 HP (500 RPM), 48 HP (1000 RPM) / 18 kW (500 RPM), 36 kW (1000 RPM)
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
- Housing Options: Standard or Low-Profile
Additional Information
The Chelsea 221 Series PTO suits aerial, dump truck, tow and recovery, and vocational municipal equipment applications. 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 marginal PTO lubrication delivery. Continuous operation is supported with a 30% de-rating applied to the intermittent torque rating.
