The Chelsea 272 Series power take-off assembly, part number 272NBHVP-B3BD or 272NBHVPB3BD, is a 6-bolt hot shift PTO built for medium-duty mobile equipment applications. It features a 1-1/4" round output shaft with a 5/16" key and supports both pneumatic and PowerShift (pneumatic/hydraulic) engagement. Continuous torque capacity reaches 300 lb-ft (407 Nm), with intermittent ratings in the 201-300 lb-ft range. Shaft power output is 29 HP at 500 RPM and 57 HP at 1,000 RPM. Compatible transmission manufacturers include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM. The 272 Series consolidates several earlier Chelsea medium-duty PTO lines and carries an integral air control valve. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting for broad transmission compatibility across Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM
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)
Shaft power: 29 HP at 500 RPM, 57 HP at 1,000 RPM (output power class 56+ HP)
Suited for aerial, construction, towing and recovery, and water truck applications
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)
- Shift Type: Pneumatic / PowerShift (Pneumatic/Hydraulic)
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- 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.
