The Chelsea 272XMJWX-A3XD is a 6-bolt hot-shift power take-off assembly from the Chelsea 272 Series, designed for medium-duty applications across towing and recovery, aerial, construction, and water truck equipment. This unit uses pneumatic (air) shift or PowerShift (pneumatic/hydraulic) engagement and mounts with a 6-bolt pattern. The output shaft is a 1-1/4" round shaft with a 5/16" keyway. Continuous torque capability for the 272 Series reaches 300 lb-ft (407 Nm); intermittent torque is rated at 201-300 lb-ft (401-500 Nm). Shaft power output is 29 HP at 500 RPM and 57 HP at 1,000 RPM. Compatible transmission manufacturers include 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 pattern for broad transmission compatibility
Pneumatic (air) shift and PowerShift (pneumatic/hydraulic) shift options
1-1/4" round output shaft with 5/16" keyway
Continuous torque capacity: 300 lb-ft (407 Nm) for the 272 Series
Intermittent torque rating: 201-300 lb-ft (401-500 Nm)
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
- 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
- Shift Type: Pneumatic (Air Shift) or PowerShift (Pneumatic/Hydraulic)
- Compatible Transmissions: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other manufacturers
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
