The Chelsea 221 Series Power Take-Off Assembly, part number 221XEAHX-A5RB or 221XEAHXA5RB, is a 6-bolt mounted PTO built for low-speed, heavy-duty vocational applications including dump trucks, tow and recovery, and aerial equipment. It uses a wire/cable mechanical shift and delivers an intermittent torque rating in the 201-300 lb-ft range, with 250 lb-ft cited as a reference value, confirm actual rating on the Chelsea application pages for your specific configuration. The 1-1/4" round output shaft (with keyway) is driven by shaft power of 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible transmissions include Allison, Eaton/Fuller, Volvo/Mack, Hino, and others. A cast iron housing and tapered cone output bearings give this unit strong load-bearing capability. Available in standard or low-profile housing configurations. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting for Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmissions
Wire/cable mechanical shift operation
1-1/4" round output shaft with keyway
Intermittent torque up to 250 lb-ft (339 Nm), verify rating on Chelsea application pages
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Available in standard or low-profile housing; greaseable pump shafts reduce spline fretting and corrosion
Tech Specs
- Intermittent Torque: 201-300 lb-ft / 301-400 Nm (250 lb-ft / 339 Nm reference, check Chelsea application pages for actual rating)
- 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 (1,000 RPM) | 18 kW (500 RPM) / 36 kW (1,000 RPM)
- Housing Options: Standard or Low-Profile
Additional Information
