The Chelsea 272 Series Power Take-Off Assembly, part number 272XDAJX-A5XD or 272XDAJXA5XD, is a 6-bolt hot-shift PTO with a 1-1/4" round output shaft and 5/16" keyway. It supports pneumatic (air) or PowerShift (pneumatic/hydraulic) engagement and carries a continuous torque rating up to 300 lb-ft (407 Nm), with intermittent torque in the 201-300 lb-ft (401-500 Nm) range. Output power reaches 56+ HP (41-50 kW), with shaft power rated at 29 HP at 500 RPM and 57 HP at 1,000 RPM. Transmission compatibility spans Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM applications. The 272 Series consolidates earlier Chelsea medium-duty PTO lines into one versatile platform suited for aerial, construction, towing and recovery, and water truck markets. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting configuration for medium-duty hot-shift applications
Pneumatic (air) or PowerShift (pneumatic/hydraulic) shift engagement with integral air control valve
1-1/4" round output shaft with 5/16" keyway
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Shaft power: 29 HP at 500 RPM, 57 HP at 1,000 RPM
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: 300 lb-ft (407 Nm) - Check Application Pages for Actual Torque Ratings
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic (Air) or PowerShift (Pneumatic/Hydraulic)
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Output Power: 56+ HP (41-50 kW)
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other select transmissions
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
