The Chelsea 221ZEAKP-A4XD or 221ZEAKPA4XD is a 6-bolt, wire/cable mechanical-shift PTO assembly built for low-speed, heavy-duty service. Output is rated at 46-55 HP (31-40 kW), with intermittent torque in the 250 lb-ft (339 Nm) range - check application pages for actual torque ratings specific to your installation. The 1-1/4" round output shaft accepts a keyed configuration, and greaseable pump shafts help reduce spline fretting and corrosion over time. Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, Hino, and select others. Available in both a standard housing and a special low-profile housing to fit tighter installations. A genuine Chelsea part sold by Pro Gear and Transmission - call us to confirm proper fit for your application.
Features
6-bolt mounting configuration
Wire/cable mechanical shift engagement
1-1/4" round output shaft, keyed configuration available
Intermittent torque up to 250 lb-ft (339 Nm) - verify against application charts
Output: 24 HP (18 kW) at 500 RPM, 48 HP (36 kW) at 1000 RPM
Available in standard or low-profile housing; greaseable pump shafts resist spline fretting
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
- Shaft Power: 24 HP (18 kW) at 500 RPM; 48 HP (36 kW) at 1000 RPM
- Output Shaft Type: 1-1/4" Round; 1-1/4" Round with key
- Mounting Type: 6-Bolt
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
- Housing Options: Standard or low-profile
Additional Information
