The Chelsea 221 Series Power Take-Off Assembly, part number 221ZEAKP-M4XQ or 221ZEAKPM4XQ, is a 6-bolt mount PTO built for low-speed, heavy-duty vocational work including dump trucks, tow and recovery, and aerial applications. It features a wire/cable mechanical shift mechanism and a 1-1/4" round output shaft with keyway. Intermittent torque is rated up to 250 lb-ft (339 Nm) - verify your exact application on the Chelsea application pages. Shaft power output reaches 48 HP at 1,000 RPM. Compatible transmission families include Allison, Eaton/Fuller, Volvo/Mack, and Hino. The cast iron housing is available in standard or low-profile configurations, and greaseable pump shafts help resist spline fretting and corrosion. 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 operation
1-1/4" round output shaft with keyway
Intermittent torque up to 250 lb-ft (339 Nm) - check application pages for your specific rating
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Cast iron housing available in standard or low-profile configuration; greaseable pump shafts reduce spline fretting and corrosion
Tech Specs
- Intermittent Torque: 250 lb-ft / 339 Nm (check application pages for actual rating by application)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Output Shaft Type: 1-1/4" Round with keyway
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Hino
- Mounting Type: 6-Bolt
- Shaft Power: 24 HP (500 RPM), 48 HP (1,000 RPM) / 18 kW (500 RPM), 36 kW (1,000 RPM)
- Housing Options: Standard or low-profile
Additional Information
