The Chelsea 272NAHVP-B3XD or 272NAHVPB3XD is a 272 Series hot-shift power take-off assembly built for medium-duty work trucks. It mounts via a 6-bolt pattern and uses a 1-1/4" round output shaft with a 5/16" key. Shift options include pneumatic and PowerShift (pneumatic/hydraulic), and the unit carries a continuous torque rating of 300 lb-ft (407 Nm) with intermittent capability up to 300 lb-ft (401-500 Nm). Rated shaft power runs 29 HP at 500 RPM and 57 HP at 1,000 RPM. The 272 Series is compatible with transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM, making it one of the wider-coverage hot-shift PTOs in its class. 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
Continuous torque rating: 300 lb-ft (407 Nm); intermittent torque: up to 300 lb-ft (401-500 Nm)
Rated shaft power: 29 HP at 500 RPM, 57 HP at 1,000 RPM
Compatible transmissions 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
- Shift Type: Pneumatic, PowerShift (Pneumatic/Hydraulic)
- Output Power: 56+ HP (41-50 kW)
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Compatible Transmissions: 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.
