The Chelsea 221 Series Power Take-Off Assembly, part number 221XCAHX-A4XD or 221XCAHXA4XD, is a 6-bolt mounted PTO built for low-speed, heavy-duty applications including dump trucks, tow and recovery, and aerial equipment. It uses a wire/cable mechanical shift and delivers shaft power of 24 HP at 500 RPM and 48 HP at 1,000 RPM, with an intermittent torque rating up to 250 lb-ft (check application pages for actual torque ratings). The 1-1/4" round output shaft with keyway suits a wide range of pump configurations. The cast iron housing with tapered cone output bearings provides strong load-bearing capability over a long service life. Compatible transmissions include Allison, Eaton/Fuller, Volvo/Mack, and Hino. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting type compatible with Allison, Eaton/Fuller, Volvo/Mack, and Hino transmissions
Wire/cable mechanical shift engagement
1-1/4" round output shaft with key for pump or driveline connection
Intermittent torque rating up to 250 lb-ft, 339 Nm (verify against application pages for actual rating)
Shaft power output: 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: 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 Key
- Transmission Manufacturer Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Hino
- 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
- Dimensions (H x W x L): 8.38" x 10.38" x 14.25"
Additional Information
