The Chelsea 221 Series Power Take-Off Assembly, part number 221XCAHX-A3RB or 221XCAHXA3RB, is a 6-bolt mounted PTO built for low-speed, heavy-duty vocational work 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 is rated up to 250 lb-ft (339 Nm); verify actual torque against the application pages for your specific configuration. Shaft power measures 24 HP at 500 RPM and 48 HP at 1000 RPM. Compatible transmissions span Allison, Eaton/Fuller, Volvo/Mack, Hino, and others. The cast iron housing is available in standard or low-profile configurations, and pump shafts are greaseable to limit spline fretting. Call us to confirm proper fit for your truck and transmission.
Features
6-bolt mounting compatible with Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmission manufacturers
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque up to 250 lb-ft (339 Nm) - confirm actual rating on 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 application pages for actual torque rating for your configuration)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1000 RPM (18 kW at 500 RPM, 36 kW at 1000 RPM)
- Output Shaft Type: 1-1/4" Round with key
- Mounting Type: 6-Bolt
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
- Housing Options: Standard or Low-Profile
Additional Information
