The Chelsea 221XCAJP-H5XK or 221XCAJPH5XK is a 6-bolt PTO assembly from the 221 Series, designed for low-speed, heavy-duty applications including dump trucks, tow and recovery, and aerial equipment. It mounts to transmissions from Allison, Eaton/Fuller, Volvo/Mack, Hino, and other manufacturers. The wire/cable mechanical shift operates a 1-1/4" round output shaft with keyway. Intermittent torque is rated at 250 lb-ft (339 Nm); check the application pages for actual ratings on your specific installation. Output power reaches 46-55 HP (31-40 kW), with shaft power of 24 HP at 500 RPM and 48 HP at 1,000 RPM. A cast iron housing with tapered cone output bearings provides greater load-bearing capability than needle-bearing designs. Available in standard or low-profile housing configurations. Pro Gear and Transmission can help confirm the right fit for your truck and transmission.
The Chelsea 221 Series PTO features a cast iron housing and tapered cone output bearings for high load-bearing capability in low-speed, heavy-duty service. Twenty-six output options are available across the 221 Series, including a 360-degree rotatable flange. Three internal speed ratios and eleven shift options, plus a self-lube option for transmissions that have difficulty delivering lubrication to the PTO. Greaseable pump shafts protect against spline fretting and corrosion. Typical applications include dump trucks, tow and recovery vehicles, and aerial equipment. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting, compatible with Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmission manufacturers
1-1/4" round output shaft with keyway
Wire/cable mechanical shift type
Intermittent torque rating: 250 lb-ft (339 Nm) - verify against application pages for your specific installation
Output power: 46-55 HP (31-40 kW); shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
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 (check application pages for actual torque ratings by installation)
- 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: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
- Mounting Type: 6-Bolt
- Shaft Power: 24 HP (500 RPM) / 48 HP (1,000 RPM); 18 kW (500 RPM) / 36 kW (1,000 RPM)
- Housing Options: Standard or low-profile
Additional Information
The Chelsea 221 Series PTO features a cast iron housing and tapered cone output bearings for high load-bearing capability in low-speed, heavy-duty service. Twenty-six output options are available across the 221 Series, including a 360-degree rotatable flange. Three internal speed ratios and eleven shift options, plus a self-lube option for transmissions that have difficulty delivering lubrication to the PTO. Greaseable pump shafts protect against spline fretting and corrosion. Typical applications include dump trucks, tow and recovery vehicles, and aerial equipment. Call us to confirm proper fit for your transmission and application.
