The Chelsea 272 Series Power Take-Off Assembly, part number 272XBDAX-A3XD or 272XBDAXA3XD, is a 6-bolt hot shift PTO with a 1-1/4" round output shaft and a 5/16" keyway. It accommodates pneumatic (air) shift or PowerShift (pneumatic/hydraulic) engagement and carries a continuous torque rating up to 300 lb-ft (407 Nm), with intermittent ratings in the 201-300 lb-ft range. Output power is rated at 56+ HP (41-50 kW); shaft power is 29 HP at 500 RPM and 57 HP at 1,000 RPM. Compatible transmission families include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM applications. The 272 Series consolidates several prior Chelsea medium-duty hot shift PTO lines into one platform, adding an integral air control valve and rotatable flanges. Call us to confirm the correct configuration for your specific transmission and application.
Features
6-bolt mounting configuration for medium-duty hot shift applications
Pneumatic (air shift) or PowerShift (pneumatic/hydraulic) engagement options
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
1-1/4" round output shaft with 5/16" keyway
Integral air control valve included; rotatable flanges for flexible installation
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
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 torque ratings
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" round shaft with 5/16" key
- Output Power: 56+ HP (41-50 kW)
- Shift Type: Pneumatic (air shift) or PowerShift (pneumatic/hydraulic)
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Compatible Transmissions: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM
Additional Information
Parts manual and diagrams: Chelsea 272 Series PTO parts list with prices
