The Chelsea 221 Series Power Take-Off Assembly, part number 221RCAJP-W3XK or 221RCAJPW3XK, is a 6-bolt mount unit designed for low-speed, heavy-duty applications including dump trucks, tow and recovery, and aerial equipment. It uses a wire/cable mechanical shift and delivers a 1-1/4" round output shaft with keyway. Intermittent torque is rated in the 201-300 lb-ft range (check application pages for the actual torque rating for your specific installation). Shaft power is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. The cast iron housing is available in standard or low-profile configurations, and greaseable pump shafts help resist spline fretting and corrosion. Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, Hino, and others. Call us to confirm proper fit for your application.

• Intermittent Torque: 201-300 lb-ft / 301-400 Nm (250 lb-ft / 339 Nm nominal - check application pages for actual torque rating)
• Shift Type: Wire/Cable, Mechanical
• Output Power: 46-55 HP / 31-40 kW
• Output Shaft Type: 1-1/4" Round, 1-1/4" Round with key
• Transmission Manufacturer: Allison, Eaton/Fuller, Volvo/Mack, Hino, 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)

The Chelsea 221 Series is built around a cast iron housing with tapered cone output shaft bearings, which provide greater load-bearing capability compared to needle bearing designs. The 221 Series offers twenty-six output options including a 360-degree rotatable flange, three internal speed ratios, and eleven shift configurations. A self-lube option is available for transmissions that have difficulty delivering lubrication to the PTO. This series covers aerial, vocational, municipal, dump truck, and tow and recovery applications. The Parker Chelsea 221 Series is listed as obsolete by the manufacturer; Pro Gear and Transmission can help you locate available stock or identify a current replacement - give us a call.