The Chelsea 221 Series Power Take-Off, part number 221ZEAKX-M5XQ or 221ZEAKXM5XQ, is a 6-bolt mounted PTO built for low-speed, heavy-duty applications such as dump trucks, tow and recovery, and aerial equipment. It uses a wire/cable mechanical shift and delivers up to 250 lb-ft (339 Nm) intermittent torque, with shaft power of 24 HP at 500 RPM and 48 HP at 1,000 RPM. The 1-1/4" round output shaft with keyway transfers power to hydraulic pumps or driveline accessories. Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, Hino, and others. The cast iron housing uses tapered cone output bearings for greater load capacity, and greaseable pump shafts help reduce spline fretting and corrosion. Available in standard or low-profile housing configurations. Call us to confirm proper fit for your application.
Features
6-bolt mounting configuration for Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmissions
Wire/cable mechanical shift engagement
1-1/4" round output shaft with keyway
Intermittent torque rating: 250 lb-ft (339 Nm); verify exact rating on application pages
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Greaseable pump shafts reduce spline fretting and corrosion; available in standard or low-profile housing
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 keyway
- Transmission Manufacturer Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
- 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
- Housing Options: Standard or low-profile
Additional Information
Parts Manual: Chelsea 221 Series PTO Parts Manual (PDF) - exploded views, item numbers and the full parts breakdown for this series.
