The Chelsea 272 Series power take-off assembly, part number 272MBAJP-H5RY or 272MBAJPH5RY, is a 6-bolt hot shift PTO designed for medium-duty truck applications in aerial, construction, towing and recovery, and water truck markets. The 272 Series supports intermittent torque ratings from 201 to 300 lb-ft (401-500 Nm) and delivers 56+ HP output. Shift options include pneumatic (air) or hydraulic, and the unit comes with an integral air control valve. Output shaft options in this series include a 1-inch round shaft with 1/4-inch key or a 1-1/4-inch round shaft with 5/16-inch key. Rotatable flanges allow flexible installation. The 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 series into one platform. A genuine Chelsea part, available from Pro Gear and Transmission. Call us to confirm proper fit for your transmission and application.
Features
6-bolt hot shift mounting configuration
Intermittent torque rating: 201-300 lb-ft (401-500 Nm)
Pneumatic (air) or hydraulic shift with integral air control valve
Output shaft options: 1-inch round with 1/4-inch key, or 1-1/4-inch round with 5/16-inch key
Rotatable flanges for flexible installation
Suited for aerial, construction, towing and recovery, and water truck applications
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic (Air) or Hydraulic
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Output Power: 56+ HP (41-50 kW)
- Output Shaft Options: 1-inch round shaft with 1/4-inch key; 1-1/4-inch round shaft with 5/16-inch key
- Integral Air Control Valve: Included
- Series: Chelsea 272
Additional Information
The Chelsea 272 Series consolidates six earlier PTO series (230, 231, 236, 238, 270, and 271) into a single medium-duty hot shift platform. The series offers nine speed ratios and eighteen shift configurations. Wet-Spline technology is available on direct-mount options to extend PTO and pump shaft service life. Driveshaft output configurations in this series include the Smart-Start feature for high-torque start-up conditions. The 272 Series is used across aerial, construction equipment, towing and recovery, water truck, defense, and material handling applications.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
