The Chelsea 272KMJKX-A3RK or 272KMJKXA3RK is a 272 Series medium-duty hot-shift power take-off built on a 6-bolt mount. It runs a pneumatic or PowerShift (pneumatic/hydraulic) shift mechanism with an integral air control valve, making in-motion engagement straightforward on compatible transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM. The 1-1/4" round output shaft with 5/16" key suits direct-mount hydraulic pump configurations common in towing and recovery, aerial, construction, and water truck applications. Continuous torque capacity for the 272 Series reaches 300 lb-ft (407 Nm); intermittent torque is rated 201-300 lb-ft (401-500 Nm). Output power exceeds 56 HP at the series level. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting configuration for broad transmission compatibility
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
1-1/4" round output shaft with 5/16" key
Continuous torque up to 300 lb-ft (407 Nm); intermittent torque rated 201-300 lb-ft (401-500 Nm)
Output power rated at 56+ HP (41-50 kW)
Compatible transmission manufacturers include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM
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 1000 RPM
- Shift Type: Pneumatic / PowerShift (Pneumatic-Hydraulic)
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, Other
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
