The Chelsea 272XAAJX-A5RK is a 6-bolt hot shift power take-off from the Chelsea 272 Series, designed for medium-duty truck applications including aerial, construction equipment, water trucks, and towing and recovery. The 272 Series supports up to 300 lb-ft of intermittent torque and is available with either pneumatic or hydraulic shift. It comes with an integral air control valve and features rotatable flanges for flexible installation. Output shaft options across the series include round shaft configurations with 1-inch or 1-1/4-inch keyway outputs. The 272 Series consolidates multiple earlier Chelsea PTO lines into a single, versatile platform. Available from Pro Gear and Transmission.
Features
Chelsea 272 Series 6-bolt hot shift power take-off
Up to 300 lb-ft intermittent torque capacity
Pneumatic or hydraulic shift with integral air control valve
Rotatable flanges for flexible mounting configurations
Smart-Start option available for high-torque start-up conditions
Wet-Spline option for extended PTO and pump shaft service life
Tech Specs
- Series: Chelsea 272 Series
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Intermittent Torque: 201 to 300 lb-ft (401 to 500 Nm)
- Output Power: 56+ HP (41 to 50 kW)
- Output Shaft Type: Round Shaft (1 in. with 1/4 in. key) or Round Shaft (1-1/4 in. with 5/16 in. key)
- Integral Air Control Valve: Included
- Lubricant Options: No Pressure Lube, Pressure Lube, or Wet Spline
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 PTO lines into one medium-duty platform. The series offers nine speed ratios and eighteen shift options. Applications include aerial, construction equipment, water trucks, towing and recovery, defense, and material handling. The Wet-Spline option reduces wear on the PTO and pump shaft during direct-mount installations, and the Smart-Start feature manages high-torque engagement conditions on driveshaft output configurations.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
