The Chelsea 221 Series Power Take-Off, part number 221ZEAKP-M6GK or 221ZEAKPM6GK, is a 6-bolt mechanical or wire/cable-shift PTO suited for low-speed, heavy-duty service on dump trucks, tow and recovery rigs, and aerial equipment. The output shaft is a 1-1/4" round with keyway, and intermittent torque for the 221 Series reaches up to 250 lb-ft (339 Nm) - verify the exact rating on the Chelsea application pages for this configuration. Shaft power is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible transmission families include Allison, Eaton/Fuller, Hino, Volvo/Mack, and others. A cast iron housing with tapered cone output bearings delivers greater load-bearing capability than needle-bearing designs. Available in standard or low-profile housing configurations. Greaseable pump shafts help reduce spline fretting and corrosion over time. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting, compatible with Allison, Eaton/Fuller, Hino, Volvo/Mack, and other transmission families
Wire/cable or mechanical shift operation
1-1/4" round output shaft with keyway
Intermittent torque up to 250 lb-ft (339 Nm) - check Chelsea application pages for configuration-specific ratings
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Available in standard or low-profile housing; greaseable pump shafts reduce spline fretting and corrosion
Tech Specs
- Intermittent Torque: Up to 250 lb-ft / 339 Nm (check Chelsea application pages for configuration-specific rating)
- Shift Type: Wire/Cable or Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Output Shaft Type: 1-1/4" Round with keyway
- Mounting Type: 6-Bolt
- Compatible Transmissions: Allison, Eaton/Fuller, Hino, Volvo/Mack, and others
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
- Housing Options: Standard or low-profile
Additional Information
