The Chelsea 221 Series Power Take-Off, part number 221ZEAKP-M6XX or 221ZEAKPM6XX, is a 6-bolt mounted PTO designed for low-speed, heavy-duty applications including dump trucks, tow and recovery, and aerial equipment. The 221 Series features a cast iron housing with tapered cone output bearings for strong load-bearing capability, and an intermittent torque rating of 250 lb-ft for the series. Output options within this series span SAE A, SAE B, and SAE C pump flanges, driveline configurations, and multiple shaft types. Compatible transmissions include Allison, Eaton/Fuller, and Volvo/Mack. Parker lists the 221 Series as obsolete; call Pro Gear and Transmission to confirm availability and fit for your specific application.
Features
Chelsea 221 Series PTO, part numbers 221ZEAKP-M6XX or 221ZEAKPM6XX
6-bolt mounting configuration
Cast iron housing with tapered cone output bearings for heavy load capability
Series intermittent torque rating: 250 lb-ft (339 Nm)
Compatible with Allison, Eaton/Fuller, and Volvo/Mack transmissions
Suited for dump truck, tow and recovery, and aerial equipment applications
