The Chelsea 221 Series Power Take-Off Assembly, part number 221XCDAX-A3XK or 221XCDAXA3XK, is a 6-bolt mounted PTO built for low-speed, heavy-duty service on vocational trucks including dump trucks, tow and recovery rigs, and aerial equipment. It shifts via wire/cable mechanical actuation and delivers a 1-1/4" round output shaft with keyway. Intermittent torque capacity reaches 250 lb-ft (339 Nm); check application pages for your specific configuration's actual rating. Output power runs 46-55 HP (31-40 kW), with shaft power rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, Hino, and others. Cast iron housing with tapered cone output bearings handles greater radial loads than needle-bearing designs. A greaseable pump shaft reduces spline fretting and corrosion over time. Available in standard or low-profile housing configurations. 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
Wire/cable mechanical shift actuation
1-1/4" round output shaft with keyway
Intermittent torque up to 250 lb-ft (339 Nm); verify rating on application pages for your specific configuration
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Greaseable pump shaft design reduces 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)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1,000 RPM / 18 kW at 500 RPM, 36 kW at 1,000 RPM
- Output Shaft Type: 1-1/4" Round with Key
- Mounting Type: 6-Bolt
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
- Housing Options: Standard or Low-Profile
Additional Information
