The Chelsea 221XEAJP-A3XD or 221XEAJPA3XD is a 2-gear, remote-mount power take-off assembly from the Chelsea 221 Series, built for low-speed, heavy-duty vocational work including dump trucks, tow and recovery, and aerial applications. It mounts via a 6-bolt pattern and shifts by wire/cable mechanical actuation. The 1-1/4" round output shaft with keyway drives hydraulic pumps rated up to 250 lb-ft (339 Nm) intermittent torque, with shaft power of 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible transmissions include Allison, Eaton/Fuller, Volvo/Mack, and Hino. The cast iron housing is available in standard or low-profile configurations. A genuine Chelsea part, sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Cross-reference numbers for this assembly: 1450-221XEAJPA3XD, 1450221XEAJPA3XD, CHL221XEAJPA3XD, S-12817, S12817. The 221 Series is suited for aerial, vocational, municipal, and mobile equipment applications. The tapered cone output bearing design provides greater load-bearing capability compared to needle-bearing alternatives. For continuous operation, a 30% de-rating applies per Chelsea application guidelines.
Features
6-bolt mounting pattern with wire/cable mechanical shift actuation
1-1/4" round output shaft with 5/16" key for direct pump drive
Intermittent torque rating of 250 lb-ft (339 Nm) - verify actual rating on Chelsea application pages
Shaft power: 24 HP (500 RPM) and 48 HP (1,000 RPM)
Available in standard or low-profile housing to suit tight under-cab clearances
Greaseable pump shafts to reduce spline fretting and corrosion
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
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Transmission Manufacturer: Allison, Eaton/Fuller, Volvo/Mack, Hino
- Mounting Type: 6-Bolt
- Shaft Power: 24 HP (500 RPM), 48 HP (1,000 RPM) / 18 kW (500 RPM), 36 kW (1,000 RPM)
- Configuration: Remote Mount, 2-Gear
- Dimensions (H x W x L): 8.38" x 10.38" x 14.25"
Additional Information
Cross-reference numbers for this assembly: 1450-221XEAJPA3XD, 1450221XEAJPA3XD, CHL221XEAJPA3XD, S-12817, S12817. The 221 Series is suited for aerial, vocational, municipal, and mobile equipment applications. The tapered cone output bearing design provides greater load-bearing capability compared to needle-bearing alternatives. For continuous operation, a 30% de-rating applies per Chelsea application guidelines.
