The Chelsea 221XCAHP-A3XD or 221XCAHPA3XD is a 6-bolt Power Take-Off assembly from the Chelsea 221 Series, built for low-speed, heavy-duty applications including dump trucks, tow and recovery, and aerial equipment. Shift type is wire/cable mechanical. The 1-1/4" round output shaft with key fits transmissions from Allison, Eaton/Fuller, Volvo/Mack, Hino, and other manufacturers. Output power runs 46-55 HP (31-40 kW), with shaft power rated at 24 HP (500 RPM) and 48 HP (1,000 RPM). Intermittent torque is rated up to 250 lb-ft (339 Nm) - check application pages for your specific configuration. The cast iron housing uses tapered cone output bearings for load-bearing durability. A genuine Chelsea part sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
The Chelsea 221 Series PTO features a cast iron housing and tapered cone output bearings for greater load-bearing capability compared to needle bearing designs. Twenty-six output options are available across the 221 Series, including Chelsea's 360-degree rotatable flange. Three internal speed ratios and multiple shift options are offered within the series. A self-lube option is available for transmissions that have difficulty delivering lubrication to the PTO. Common applications include dump trucks, tow and recovery vehicles, and aerial equipment.
Features
6-bolt mounting, compatible with Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmission manufacturers
1-1/4" round output shaft with key
Wire/cable mechanical shift type
Intermittent torque up to 250 lb-ft (339 Nm) - verify against application pages for your unit
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM (18 kW / 36 kW)
Greaseable pump shafts to 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 rating for your configuration)
- 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: Hino, Allison, Volvo/Mack, Eaton/Fuller, Other
- Mounting Type: 6-Bolt
- Shaft Power: 24 HP (500 RPM), 48 HP (1,000 RPM) / 18 kW (500 RPM), 36 kW (1,000 RPM)
Additional Information
The Chelsea 221 Series PTO features a cast iron housing and tapered cone output bearings for greater load-bearing capability compared to needle bearing designs. Twenty-six output options are available across the 221 Series, including Chelsea's 360-degree rotatable flange. Three internal speed ratios and multiple shift options are offered within the series. A self-lube option is available for transmissions that have difficulty delivering lubrication to the PTO. Common applications include dump trucks, tow and recovery vehicles, and aerial equipment.
