The Chelsea 272 Series Power Take-Off Assembly, part number 272XCAJP-B3RK or 272XCAJPB3RK, is a 6-bolt hot-shift PTO built around a continuous-duty torque rating of up to 300 lb-ft (407 Nm). The output shaft is a 1-1/4" round shaft with a 5/16" key, and the unit supports both pneumatic and PowerShift (pneumatic/hydraulic) engagement. Output power reaches 56+ HP (41-50 kW), with shaft power measured at 29 HP (21 kW) at 500 RPM and 57 HP (43 kW) at 1,000 RPM. The 272 Series is compatible with transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM, making it a practical fit across a broad range of medium-duty truck platforms. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting configuration for medium-duty hot-shift applications
1-1/4" round output shaft with 5/16" key
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
Continuous-duty torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Output power 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: 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)
- Shift Type: Pneumatic / PowerShift (Pneumatic-Hydraulic)
- Shaft Power at 500 RPM: 29 HP (21 kW)
- Shaft Power at 1,000 RPM: 57 HP (43 kW)
- Compatible Transmission Manufacturers: 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.
