The Chelsea 221 Series Power Take-Off, part number 221XCAJP-A5XK or 221XCAJPA5XK, is a direct-mount, 2-gear, 6-bolt PTO assembly 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 mounts to transmissions from Allison, Eaton/Fuller, Volvo/Mack, Hino, and other manufacturers. The 1-1/4" round output shaft with keyway delivers up to 250 lb-ft intermittent torque (339 Nm), with shaft power rated at 24 HP at 500 RPM and 48 HP at 1000 RPM. The cast iron housing is available in a standard or low-profile configuration. Greaseable pump shafts help reduce spline fretting and corrosion. Cross-references include S-12820 and TG6SU6005A3KP. Call us to confirm proper fit for your transmission and application.
Features
6-bolt direct-mount, 2-gear PTO assembly for heavy-duty vocational applications
Wire/cable mechanical shift; fits Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmissions
1-1/4" round output shaft with keyway; up to 250 lb-ft (339 Nm) intermittent torque
Shaft power: 24 HP at 500 RPM, 48 HP at 1000 RPM
Available with standard or low-profile housing for clearance-constrained installations
Greaseable pump shafts to limit 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: Hino, Allison, Volvo/Mack, Eaton/Fuller, Other
- Mounting Type: 6-Bolt
- Shaft Power: 24 HP at 500 RPM; 48 HP at 1000 RPM (18 kW at 500 RPM; 36 kW at 1000 RPM)
- Configuration: Direct Mount, 2-Gear
Additional Information
