The Chelsea 221 Series Power Take-Off, part number 221XCAJP-V3RB or 221XCAJPV3RB, is a 6-bolt mounted PTO built for low-speed, heavy-duty vocational work including dump trucks, tow and recovery, and aerial applications. It uses a wire/cable mechanical shift and delivers output power in the 46-55 HP (31-40 kW) range, with shaft power rated at 24 HP (500 RPM) and 48 HP (1,000 RPM). The 1-1/4" round output shaft with keyway suits a wide range of pump drives. Compatible transmissions include Allison, Eaton/Fuller, Volvo/Mack, Hino, and others. A cast iron housing with tapered cone output bearings provides strong load-bearing capability over extended service. Available in standard or low-profile housing configurations. Call us to confirm proper fit for your application.
The Chelsea 221 Series uses a cast iron housing and tapered cone bearings on the output shaft, giving it stronger load-bearing capability than needle-bearing designs. Greaseable pump shafts are a standard feature to reduce spline fretting and corrosion in demanding duty cycles. The 221 Series is suited for aerial equipment, dump trucks, and tow and recovery applications. Compatible output flange options for this series include SAE A pump flange, SAE B pump flange, ISO 7652 pump flange, and driveline configurations. For continuous operation, apply a 30% de-rating to the intermittent torque figures. Parker Chelsea references this series under documents HY25-2221-M1_US (Parts List) and the Chelsea PTO General Information Catalog.
Features
6-bolt mounting type for broad transmission compatibility including Allison, Eaton/Fuller, Volvo/Mack, Hino, and others
Wire/cable mechanical shift operation
1-1/4" round output shaft with keyway
Output power 46-55 HP (31-40 kW); shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
Intermittent torque rating 250 lb-ft / 339 Nm (verify actual rating on Chelsea application pages)
Available in standard or low-profile housing; greaseable pump shafts reduce spline fretting and corrosion
Tech Specs
- Intermittent Torque: 250 lb-ft / 339 Nm (check Chelsea application pages for actual torque ratings for your specific installation)
- 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
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
- Housing Options: Standard or low-profile
Additional Information
The Chelsea 221 Series uses a cast iron housing and tapered cone bearings on the output shaft, giving it stronger load-bearing capability than needle-bearing designs. Greaseable pump shafts are a standard feature to reduce spline fretting and corrosion in demanding duty cycles. The 221 Series is suited for aerial equipment, dump trucks, and tow and recovery applications. Compatible output flange options for this series include SAE A pump flange, SAE B pump flange, ISO 7652 pump flange, and driveline configurations. For continuous operation, apply a 30% de-rating to the intermittent torque figures. Parker Chelsea references this series under documents HY25-2221-M1_US (Parts List) and the Chelsea PTO General Information Catalog.
