The Chelsea 272 Series Power Take-Off Assembly, part number 272ADKUP-D5RY or 272ADKUPD5RY, is a 6-bolt hot-shift PTO designed for medium-duty applications including towing and recovery, aerial work, construction equipment, and water trucks. 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 capacity reaches 300 lb-ft (407 Nm), with intermittent torque rated at 201-300 lb-ft (401-500 Nm). Shaft power output is rated at 29 HP at 500 RPM and 57 HP at 1,000 RPM. The 272 Series is compatible with transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM, among others. Call us to confirm proper fit for your specific transmission and application.
Features
6-Bolt mounting configuration for broad transmission compatibility
Pneumatic or PowerShift (pneumatic/hydraulic) shift with integral air control valve
1-1/4" round output shaft with 5/16" key
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Output power 29 HP at 500 RPM, 57 HP at 1,000 RPM
Rotatable flanges, optional Wet-Spline technology, and Smart Start option for high-torque start-up
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic / PowerShift (Pneumatic or Hydraulic)
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Continuous Torque: 300 lb-ft / 407 Nm (check application pages for actual torque ratings)
- Intermittent Torque: 201-300 lb-ft / 401-500 Nm
- Shaft Power at 500 RPM: 29 HP / 21 kW
- Shaft Power at 1,000 RPM: 57 HP / 43 kW
- Output Power: 56+ HP / 41-50 kW
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other manufacturers
Additional Information
