The Chelsea 221 Series Power Take-Off, part number 221XCAHP-W5XK or 221XCAHPW5XK, is a 6-bolt mounted PTO built for low-speed, heavy-duty service on dump trucks, aerial units, and tow and recovery vehicles. It shifts via wire/cable mechanical actuation and delivers up to 250 lb-ft intermittent torque (339 Nm), with shaft power of 24 HP at 500 RPM and 48 HP at 1,000 RPM. The 1-1/4" round output shaft with keyway suits a wide range of pump configurations. Cast iron housing and tapered cone output bearings provide load-bearing capability beyond what needle-bearing designs offer. Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, and Hino. Call us to confirm proper fit for your specific transmission and application.
The Chelsea 221 Series is suited for aerial, vocational, municipal, and other mobile equipment applications including dump trucks and tow and recovery vehicles. The cast iron housing and tapered cone bearings on the output shaft contribute to the series' load-bearing capability and service life. Three internal speed ratios and a space-saving shift cover design provide installation flexibility. The 221 Series also supports a self-lube option for transmissions with limited PTO lubrication delivery. Twenty-six output configurations are available across the series, including Chelsea's 360-degree rotatable flange. Confirm the specific output, ratio, and shift configuration for part number 221XCAHP-W5XK against your Chelsea application guide before ordering.
Features
6-bolt mounting for broad transmission compatibility including Allison, Eaton/Fuller, Volvo/Mack, and Hino
Wire/cable mechanical shift actuation
1-1/4" round output shaft with keyway
Intermittent torque rating: 250 lb-ft (339 Nm) - verify actual rating on Chelsea application pages for your configuration
Shaft power output: 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 to fit space-constrained installations
Tech Specs
- Intermittent Torque: 250 lb-ft / 339 Nm (check Chelsea application pages for actual torque rating for your configuration)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Output Shaft Type: 1-1/4" Round with key
- Mounting Type: 6-Bolt
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Volvo/Mack, Hino
- Shaft Power: 24 HP (500 RPM), 48 HP (1,000 RPM) / 18 kW (500 RPM), 36 kW (1,000 RPM)
Additional Information
The Chelsea 221 Series is suited for aerial, vocational, municipal, and other mobile equipment applications including dump trucks and tow and recovery vehicles. The cast iron housing and tapered cone bearings on the output shaft contribute to the series' load-bearing capability and service life. Three internal speed ratios and a space-saving shift cover design provide installation flexibility. The 221 Series also supports a self-lube option for transmissions with limited PTO lubrication delivery. Twenty-six output configurations are available across the series, including Chelsea's 360-degree rotatable flange. Confirm the specific output, ratio, and shift configuration for part number 221XCAHP-W5XK against your Chelsea application guide before ordering.
