The Chelsea 221XCAJP-H3XD or 221XCAJPH3XD is a 6-bolt power take-off assembly from the Chelsea 221 Series, 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 mounts to transmissions from Allison, Eaton/Fuller, Volvo/Mack, Hino, and other manufacturers. The 1-1/4" round output shaft with keyway delivers up to 250 lb-ft (339 Nm) intermittent torque, with shaft power rated at 24 HP at 500 RPM and 48 HP at 1000 RPM. A cast iron housing and tapered cone output bearings provide strong load-bearing capability. Available in standard or low-profile housing configurations. Call us to confirm proper fit for your transmission and application.
The Chelsea 221 Series features a cast iron housing and tapered cone output bearings instead of needle bearings, providing greater load-bearing capability for demanding vocational cycles including dump truck, tow and recovery, and aerial equipment. Three internal speed ratios and multiple shift options make this a versatile platform. The 221 Series also supports continuous operation with a 30% de-rating applied. The 360-degree rotatable flange is available across output configurations in this series.
Documents: 221 Series Owner's Manual | 221 Series Parts List HY25-2221-M1_US | Chelsea PTO General Information Catalog
Features
6-bolt mounting, compatible with Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmission manufacturers
Wire/cable mechanical shift operation
1-1/4" round output shaft with keyway
Intermittent torque rating: 250 lb-ft (339 Nm); 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) - Check Application Pages for Actual Torque Ratings
- Shift Type: Wire/Cable, Mechanical
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with Key
- Output Power: 46-55 HP (31-40 kW)
- Shaft Power: 24 HP (500 RPM), 48 HP (1000 RPM), 18 kW (500 RPM), 36 kW (1000 RPM)
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
- Housing Options: Standard or Low-Profile
Additional Information
The Chelsea 221 Series features a cast iron housing and tapered cone output bearings instead of needle bearings, providing greater load-bearing capability for demanding vocational cycles including dump truck, tow and recovery, and aerial equipment. Three internal speed ratios and multiple shift options make this a versatile platform. The 221 Series also supports continuous operation with a 30% de-rating applied. The 360-degree rotatable flange is available across output configurations in this series.
Documents: 221 Series Owner's Manual | 221 Series Parts List HY25-2221-M1_US | Chelsea PTO General Information Catalog
