The Chelsea 272ADKUP-B5RK or 272ADKUPB5RK is a 272 Series hot shift 6-bolt power take-off assembly designed for medium-duty applications in towing and recovery, aerial, construction, and water truck operations. The unit mounts via a 6-bolt pattern and delivers a 1-1/4" round output shaft with a 5/16" key. Pneumatic or PowerShift (pneumatic/hydraulic) engagement options are built in, with an integral air control valve. Continuous torque capability reaches 300 lb-ft (407 Nm); intermittent torque is rated at 201-300 lb-ft (401-500 Nm). Compatible transmission manufacturers 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 and PowerShift (pneumatic/hydraulic) shift options 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 rated at 56+ HP (41-50 kW); 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: 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, Other
- Mounting Bolt Hole Quantity: 6
- Cross Reference: 272ADKUP-B5RK, 272ADKUPB5RK, CHE-272ADKUP-B5RK, CHE272ADKUPB5RK
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
