The Chelsea 272 Series Power Take-Off Assembly, part number 272ACKUP-D5RY or 272ACKUPD5RY, is a 6-bolt hot-shift PTO designed for medium-duty applications across towing and recovery, aerial, construction equipment, and water truck markets. It features a 1-1/4" round output shaft with a 5/16" key, pneumatic or PowerShift (pneumatic/hydraulic) shift operation, and an integral air control valve. Continuous torque capability reaches 300 lb-ft (407 Nm), with intermittent ratings from 201 to 300 lb-ft (401 to 500 Nm). Output power runs at 57 HP (43 kW) at 1,000 RPM. Compatible transmissions include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting with pneumatic or PowerShift (pneumatic/hydraulic) shift options
1-1/4" round output shaft with 5/16" key
Integral air control valve included
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent up to 300 lb-ft (500 Nm)
Output: 57 HP (43 kW) at 1,000 RPM
Wet-Spline option available for extended PTO and pump shaft service life
Smart Start option for high-torque start-up conditions
Rotatable flanges for flexible installation
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or PowerShift (Pneumatic/Hydraulic)
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: 300 lb-ft (407 Nm) - Check Application Pages for Actual Torque Ratings
- Output Power: 56+ HP (41-50 kW)
- Shaft Power at 500 RPM: 29 HP (21 kW)
- Shaft Power at 1,000 RPM: 57 HP (43 kW)
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other select transmissions
Additional Information
