The Chelsea 272 Series Power Take-Off Assembly, part number 272XMAJX-P3XR or 272XMAJXP3XR, is a 6-bolt hot-shift PTO designed for medium-duty mobile equipment applications including aerial, construction, towing and recovery, and water trucks. It features a 1-1/4" round output shaft with a 5/16" key and supports both pneumatic and PowerShift (pneumatic/hydraulic) engagement. The 272 Series carries an intermittent torque rating of 201-300 lb-ft (401-500 Nm) and a continuous torque rating up to 300 lb-ft (407 Nm); verify actual ratings on the application pages for your specific transmission. Compatible transmission manufacturers include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM. Call us to confirm proper fit for your application.
Features
6-bolt mounting configuration for medium-duty hot-shift PTO applications
1-1/4" round output shaft with 5/16" key
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
Intermittent torque: 201-300 lb-ft (401-500 Nm); continuous torque up to 300 lb-ft (407 Nm) - verify per application
Output power: 56+ HP (41-50 kW); shaft power at 1,000 RPM: 57 HP (43 kW)
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
Tech Specs
- Intermittent Torque: 201-300 lb-ft, 401-500 Nm
- 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)
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, Other
- Continuous Torque: Up to 300 lb-ft, 407 Nm (Check Application Pages for Actual Torque Ratings)
- Shaft Power at 500 RPM: 29 HP (21 kW); at 1,000 RPM: 57 HP (43 kW)
- Lubricant Code - P: Pressure Lube
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
