The Chelsea 221XCAHP-W3XR or 221XCAHPW3XR is a 6-bolt mounted power take-off from the Chelsea 221 Series, built for low-speed, heavy-duty applications such as dump trucks, tow and recovery, and aerial equipment. It uses wire/cable mechanical shift and delivers up to 250 lb-ft (339 Nm) intermittent torque, with shaft power rated at 24 HP (500 RPM) and 48 HP (1000 RPM). The 1-1/4" round output shaft with keyway is compatible with transmissions from Allison, Eaton/Fuller, Volvo/Mack, Hino, and other manufacturers. The cast iron housing uses tapered cone output bearings for extended load-bearing service life. Available in standard or low-profile housing configurations. Call Pro Gear and Transmission to confirm the right fit for your application.
The Chelsea 221 Series PTO offers twenty-six output options including a 360-degree rotatable flange, three internal speed ratios, and eleven shift options. A self-lube option is available for transmissions with limited lubrication delivery to the PTO. Typical applications include dump trucks, tow and recovery, and aerial equipment. The alternate part reference SP221XCAHP-W3XR may appear in some parts listings for this same unit. Call Pro Gear and Transmission to confirm proper fit for your truck and transmission.
Features
6-bolt mounting, compatible with Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmission manufacturers
Wire/cable mechanical shift with up to 250 lb-ft (339 Nm) intermittent torque rating
1-1/4" round output shaft with keyway
Shaft power: 24 HP at 500 RPM, 48 HP at 1000 RPM
Cast iron housing with tapered cone output bearings for heavy load capacity
Greaseable pump shafts to reduce spline fretting and corrosion; available in standard or low-profile housing
Tech Specs
- Intermittent Torque: 250 lb-ft / 339 Nm (verify exact rating on Chelsea application pages)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Output Shaft Type: 1-1/4" Round with keyway
- Mounting Type: 6-Bolt
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Hino, and other manufacturers
- Shaft Power: 24 HP (500 RPM), 48 HP (1000 RPM) / 18 kW (500 RPM), 36 kW (1000 RPM)
Additional Information
The Chelsea 221 Series PTO offers twenty-six output options including a 360-degree rotatable flange, three internal speed ratios, and eleven shift options. A self-lube option is available for transmissions with limited lubrication delivery to the PTO. Typical applications include dump trucks, tow and recovery, and aerial equipment. The alternate part reference SP221XCAHP-W3XR may appear in some parts listings for this same unit. Call Pro Gear and Transmission to confirm proper fit for your truck and transmission.
Parts Manual: Chelsea 221 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
