The Chelsea 221 Series Power Take-Off Assembly, part number 221XLDAX-A5XQ or 221XLDAXA5XQ, is a 6-bolt mount PTO designed for low-speed, heavy-duty vocational work including 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 - verify your application on the Chelsea application pages for actual torque ratings. The 1-1/4" round output shaft with keyway pairs with a cast iron housing and tapered cone output bearings for strong load-bearing capability. Shaft power rates at 24 HP (500 RPM) and 48 HP (1,000 RPM). Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, and Hino, among others. Call us to confirm proper fit for your application.
The Chelsea 221 Series uses tapered cone bearings on the output shaft rather than needle bearings, providing greater load-bearing capability in demanding vocational applications. The series supports twenty-six output options and three internal speed ratios. The 360-degree rotatable flange design gives installation flexibility, and the space-saving shift cover maximizes clearance under the truck. A self-lube option is available for transmissions with limited lubrication to the PTO mount. Typical applications include dump trucks, tow and recovery, and aerial equipment.
Features
6-bolt mounting configuration for broad transmission compatibility
Wire/cable mechanical shift type
1-1/4" round output shaft with key
Intermittent torque rating up to 250 lb-ft (339 Nm) - check application pages for your specific rating
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 low-profile housing configurations
Tech Specs
- Intermittent Torque: 250 lb-ft / 339 Nm (check Chelsea application pages for actual torque rating for your application)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Output Shaft Type: 1-1/4" Round with key
- 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
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
Additional Information
The Chelsea 221 Series uses tapered cone bearings on the output shaft rather than needle bearings, providing greater load-bearing capability in demanding vocational applications. The series supports twenty-six output options and three internal speed ratios. The 360-degree rotatable flange design gives installation flexibility, and the space-saving shift cover maximizes clearance under the truck. A self-lube option is available for transmissions with limited lubrication to the PTO mount. Typical applications include dump trucks, tow and recovery, and aerial equipment.
