The Chelsea 221 Series Power Take-Off, part number 221XCAJP-A6XD or 221XCAJPA6XD, is a 6-bolt mounted PTO designed for low-speed, heavy-duty service on vocational trucks including dump trucks, tow and recovery vehicles, and aerial equipment. It uses a wire/cable mechanical shift and delivers a 1-1/4" round output shaft with keyway. Intermittent torque is rated at 250 lb-ft (339 Nm); check Chelsea application pages to confirm the rating for your specific installation. Shaft power output is 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, and Hino. Greaseable pump shafts help reduce spline fretting and corrosion over the long haul. Call us to confirm proper fit for your application.
The Chelsea 221 Series is built around a cast iron housing with tapered cone output shaft bearings for greater load-bearing capability compared to needle-bearing designs. The series supports continuous operation with a 30% de-rating applied. A space-saving shift cover design provides maximum clearance under the truck. The 221 Series is suited for aerial, vocational, municipal, dump truck, and tow-and-recovery applications. Part number 221XCAJP-A6XD is also referenced as SP221XCAJP-A6XD in some catalog listings.
Features
6-bolt mounting configuration for broad transmission compatibility
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque rating up to 250 lb-ft (339 Nm) - verify via Chelsea application pages
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Greaseable pump shafts to reduce spline fretting and corrosion
Tech Specs
- Intermittent Torque: 250 lb-ft / 339 Nm (check Chelsea application pages for actual rating)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1,000 RPM (18 kW at 500 RPM, 36 kW at 1,000 RPM)
- Output Shaft Type: 1-1/4" Round with key
- Mounting Type: 6-Bolt
- Compatible Transmissions: Allison, Eaton/Fuller, Volvo/Mack, Hino
Additional Information
The Chelsea 221 Series is built around a cast iron housing with tapered cone output shaft bearings for greater load-bearing capability compared to needle-bearing designs. The series supports continuous operation with a 30% de-rating applied. A space-saving shift cover design provides maximum clearance under the truck. The 221 Series is suited for aerial, vocational, municipal, dump truck, and tow-and-recovery applications. Part number 221XCAJP-A6XD is also referenced as SP221XCAJP-A6XD in some catalog listings.
