The Chelsea 221XLAHX-W5XD is a 221 Series Power Take-Off assembly designed for low-speed, heavy-duty service. It mounts via a 6-bolt pattern and uses wire/cable mechanical shift engagement. The 1-1/4" round output shaft includes a keyway. Intermittent torque is rated at 250 lb-ft (339 Nm) for this series - verify your actual application rating on the Chelsea application pages. Shaft power measures 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible transmission families include Allison, Eaton/Fuller, Volvo/Mack, Hino, and others. The cast iron housing is available in standard or low-profile configurations, and greaseable pump shafts help resist spline fretting and corrosion. Part number 221XLAHX-W5XD or 221XLAHXW5XD, sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.

The Chelsea 221 Series is built around a cast iron housing with tapered cone output shaft bearings for greater load-bearing capability compared to needle bearing designs. Twenty-six output options are available across the series, including a 360-degree rotatable flange. Three internal speed ratios and eleven shift options give this series broad versatility. A self-lube option is available for transmissions with restricted PTO lubrication. Typical applications include dump trucks, tow and recovery, aerial equipment, and vocational/municipal service. Part number 221XLAHX-W5XD or 221XLAHXW5XD.
Features
6-bolt mounting pattern compatible with Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmission families
Wire/cable mechanical shift engagement
1-1/4" round output shaft with keyway
Intermittent torque rating up to 250 lb-ft (339 Nm) - check application pages for your specific rating
Shaft power output: 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: 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 keyway
- Transmission Compatibility: Hino, Allison, Volvo/Mack, Eaton/Fuller, Other
- Mounting Type: 6-Bolt
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1,000 RPM (18 kW at 500 RPM, 36 kW at 1,000 RPM)
Additional Information

The Chelsea 221 Series is built around a cast iron housing with tapered cone output shaft bearings for greater load-bearing capability compared to needle bearing designs. Twenty-six output options are available across the series, including a 360-degree rotatable flange. Three internal speed ratios and eleven shift options give this series broad versatility. A self-lube option is available for transmissions with restricted PTO lubrication. Typical applications include dump trucks, tow and recovery, aerial equipment, and vocational/municipal service. Part number 221XLAHX-W5XD or 221XLAHXW5XD.