The Chelsea 221 Series Power Take-Off Assembly, part number 221XEDAX-X3XK or 221XEDAXX3XK, is a 6-bolt mounted PTO built for low-speed, heavy-duty service in dump truck, tow and recovery, and aerial equipment applications. It uses a wire/cable mechanical shift and accepts a 1-1/4" round output shaft with keyway. Intermittent torque is rated up to 250 lb-ft (check application pages for your specific configuration). Output power runs 46-55 HP at working speed, with shaft power measured at 24 HP at 500 RPM and 48 HP at 1,000 RPM. A cast iron housing with tapered cone output bearings handles higher radial loads than needle-bearing designs. Greaseable pump shafts fight spline fretting and corrosion in demanding duty cycles. Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, and Hino, among others. Available in standard or low-profile housing configurations. Pro Gear and Transmission carries this genuine Chelsea part - call us to confirm the right configuration for your transmission and application.
Features
6-bolt mounting, compatible with Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmission manufacturers
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque rating up to 250 lb-ft (339 Nm) - verify on application pages for your specific model
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 special low-profile housing
Tech Specs
- Intermittent Torque: 250 lb-ft / 339 Nm (check application pages for actual torque ratings by configuration)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Output Shaft Type: 1-1/4" Round with keyway
- Mounting Type: 6-Bolt
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Hino, and other manufacturers
- Shaft Power: 24 HP (500 RPM), 48 HP (1,000 RPM) / 18 kW (500 RPM), 36 kW (1,000 RPM)
- Continuous Operation: Yes, with 30% de-rating
Additional Information
