The Chelsea 272MCAJP-G3XD or 272MCAJPG3XD is a 6-bolt hot-shift power take-off assembly from the Chelsea 272 Series, a mid-duty PTO platform that consolidates the earlier 230, 231, 236, 238, 270, and 271 series into a single, flexible design. This unit mounts pneumatically or via PowerShift (pneumatic/hydraulic) and delivers a 1-1/4" round output shaft with a 5/16" key. Intermittent torque capacity runs 201-300 lb-ft (401-500 Nm); the 272 Series carries a continuous-duty torque rating up to 300 lb-ft, though actual values vary by transmission application. Compatible transmission manufacturers include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM. Common applications include towing and recovery, aerial equipment, construction, and water trucks. Call us to confirm the right fit for your specific transmission and duty cycle.
Features
6-bolt mounting for broad transmission compatibility across Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM
1-1/4" round output shaft with 5/16" key
Pneumatic shift and PowerShift (pneumatic/hydraulic) options
Intermittent torque: 201-300 lb-ft (401-500 Nm); continuous-duty torque up to 300 lb-ft (check application pages for actual ratings)
Output power: 56+ HP (41-50 kW); shaft power at 1,000 RPM: 57 HP / 43 kW
Smart Start option for high-torque start-up conditions (272 Series feature)
Tech Specs
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: Up to 300 lb-ft / 407 Nm (check application pages for actual ratings)
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Output Power: 56+ HP (41-50 kW)
- Shift Type: Pneumatic; PowerShift (Pneumatic/Hydraulic)
- Shaft Power at 500 RPM: 29 HP / 21 kW
- Shaft Power at 1,000 RPM: 57 HP / 43 kW
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, Other
Additional Information
The Chelsea 272 Series consolidates six earlier PTO series (230, 231, 236, 238, 270, and 271) into one platform, offering nine speed ratios and eighteen shift options. The series includes an integral air control valve, rotatable flanges, and optional Wet-Spline technology for extended PTO and pump shaft service life. The 272 Series is designed for aerial, construction, towing and recovery, and water truck applications. For detailed application fitment by transmission model, consult the Chelsea 272 Series application pages or call Pro Gear and Transmission to confirm the correct ratio and shift configuration for your vehicle.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
