The Chelsea 221 Series Power Take-Off, part number 221ZEAHX-A3XR or 221ZEAHXA3XR, is a 6-bolt mount PTO built for low-speed, heavy-duty applications including dump trucks, tow and recovery, and aerial equipment. It uses a wire/cable mechanical shift and delivers an output shaft rated for 24 HP at 500 RPM and 48 HP at 1000 RPM. The 1-1/4" round output shaft accepts a keyway. Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, and Hino, among others. The cast iron housing is available in standard or low-profile configurations, and greaseable pump shafts help reduce spline fretting and corrosion over time. Available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
6-bolt mounting configuration
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Shaft power: 24 HP at 500 RPM, 48 HP at 1000 RPM
Intermittent torque rating: 250 lb-ft (339 Nm) - verify actual rating on Chelsea application pages
Fits Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmission manufacturers
Available in standard or low-profile housing
Greaseable pump shafts to minimize spline fretting and corrosion
Tech Specs
- Intermittent Torque: 250 lb-ft / 339 Nm (check Chelsea 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 keyway
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
- Mounting Type: 6-Bolt
- Shaft Power: 24 HP (500 RPM), 48 HP (1000 RPM) / 18 kW (500 RPM), 36 kW (1000 RPM)
- Series: Chelsea 221 Series
Additional Information
Parts Manual: Chelsea 221 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
