The Chelsea 272ADKUP-B5XD or 272ADKUPB5XD is a 6-bolt hot-shift power take-off assembly from the Chelsea 272 Series, designed for medium-duty applications including aerial, construction equipment, towing and recovery, and water trucks. It mounts with a 6-bolt pattern and features a 1-1/4" round output shaft with a 5/16" key. Shift is pneumatic or PowerShift (pneumatic/hydraulic), with an integral air control valve included. The 272 Series carries a continuous torque rating up to 300 lb-ft (407 Nm) and intermittent torque in the 201-300 lb-ft (401-500 Nm) range. Output power reaches 56+ HP, with shaft power of 57 HP at 1,000 RPM. Compatible transmissions include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM. Call us to confirm proper fit for your application.
Features
6-bolt mounting pattern for broad transmission compatibility
1-1/4" round output shaft with 5/16" key
Pneumatic or PowerShift (pneumatic/hydraulic) shift with integral air control valve
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Output power 56+ HP; shaft power 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: 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 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 or PowerShift (Pneumatic/Hydraulic)
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other applications
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
