The Chelsea 221 Series Power Take-Off Assembly, part number 221XLAHX-A6XD or 221XLAHXA6XD, is a 6-bolt mounted PTO built for low-speed, heavy-duty vocational applications including dump trucks, tow and recovery, and aerial equipment. It uses a wire/cable mechanical shift and carries a 1-1/4" round output shaft with keyway. Intermittent torque is rated at 250 lb-ft (339 Nm) - check application pages for actual torque ratings for your specific installation. Shaft power output is 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible transmissions include Allison, Eaton/Fuller, Volvo/Mack, Hino, and other manufacturers. The cast iron housing is available in standard or low-profile configurations. Call us to confirm proper fit for your application.
The 221 Series is built around a cast iron housing with tapered cone output shaft bearings, chosen over needle bearings for greater load-bearing capability under sustained vocational use. The 360-degree rotatable flange and twenty-six output options give installers flexibility across dump truck, tow and recovery, and aerial platform applications. A self-lube option is available for transmissions that have difficulty delivering lubrication to the PTO. The series supports continuous operation with a 30% de-rating applied.
Part number 221XLAHX-A6XD is also referenced as 221XLAHXA6XD. Call us to confirm the correct configuration for your transmission and hydraulic system.
Features
6-bolt mounting for compatibility with Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmission manufacturers
Wire/cable mechanical shift operation
1-1/4" round output shaft with keyway
Intermittent torque rating: 250 lb-ft (339 Nm) - verify against application pages for your specific setup
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
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP, 31-40 kW
- Output Shaft Type: 1-1/4" Round with Key
- Transmission Manufacturer: Allison, Eaton/Fuller, Volvo/Mack, Hino, 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 221 Series is built around a cast iron housing with tapered cone output shaft bearings, chosen over needle bearings for greater load-bearing capability under sustained vocational use. The 360-degree rotatable flange and twenty-six output options give installers flexibility across dump truck, tow and recovery, and aerial platform applications. A self-lube option is available for transmissions that have difficulty delivering lubrication to the PTO. The series supports continuous operation with a 30% de-rating applied.
Part number 221XLAHX-A6XD is also referenced as 221XLAHXA6XD. Call us to confirm the correct configuration for your transmission and hydraulic system.
