The Chelsea 221 Series Power Take-Off Assembly, part number 221ZEAKP-M4XK or 221ZEAKPM4XK, is a 6-bolt mounted PTO built for low-speed, heavy-duty service on Hino, Allison, Eaton/Fuller, Volvo/Mack, and other compatible transmissions. Shift type is wire/cable mechanical. The output shaft is a 1-1/4" round with keyway. Intermittent torque is rated up to 250 lb-ft (339 Nm); verify actual torque on the Chelsea application pages for your specific installation. Shaft power output is 24 HP at 500 RPM and 48 HP at 1,000 RPM. The cast iron housing is available in standard or low-profile configurations. Greaseable pump shafts help reduce spline fretting and corrosion over time. Typical applications include dump trucks, tow and recovery, and aerial equipment. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting compatible with Hino, Allison, Eaton/Fuller, Volvo/Mack, 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 rating on Chelsea application pages
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Greaseable pump shafts to reduce spline fretting and corrosion
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
- Transmission Manufacturer: Hino, Allison, Eaton/Fuller, Volvo/Mack, Other
- Mounting Type: 6-Bolt
- Shaft Power: 24 HP (500 RPM), 48 HP (1,000 RPM), 18 kW (500 RPM), 36 kW (1,000 RPM)
- Dimensions (H x W x L): 8.38" x 10.38" x 14.25"
Additional Information
