The Chelsea 221ZEAKP-M4RB or 221ZEAKPM4RB is a 6-bolt Power Take-Off assembly from the Chelsea 221 Series, designed for low-speed, heavy-duty service on vocational trucks 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 falls in the 201-300 lb-ft range, with 250 lb-ft noted in application references. Shaft power is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible transmissions include Allison, Eaton/Fuller, Volvo/Mack, and Hino. The cast iron housing is available in standard or low-profile configurations. Call us to confirm proper fit for your application.
Features
6-bolt mounting for compatibility with Allison, Eaton/Fuller, Volvo/Mack, and Hino 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 application pages
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Greaseable pump shafts to reduce spline fretting and corrosion
Available in standard or low-profile housing
Tech Specs
- Intermittent Torque: 201-300 lb-ft / 301-400 Nm; 250 lb-ft / 339 Nm (verify on application pages)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Output Shaft Type: 1-1/4" Round, 1-1/4" Round with key
- Transmission Compatibility: Hino, Allison, Volvo/Mack, Eaton/Fuller
- Mounting Type: 6-Bolt
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1,000 RPM / 18 kW at 500 RPM, 36 kW at 1,000 RPM
Additional Information
