The Chelsea 272 Series Power Take-Off Assembly, part number 272NBHVP-G3RB or 272NBHVPG3RB, is a 6-bolt hot-shift PTO built for medium-duty commercial and vocational truck applications. It mounts to a 6-bolt transmission aperture and shifts via pneumatic (air) or PowerShift pneumatic/hydraulic actuation, with an integral air control valve included. The output shaft is a 1-1/4" round shaft with a 5/16" keyway. Continuous torque capability reaches 300 lb-ft (407 Nm) - verify your specific application rating on the Chelsea application pages. Intermittent torque is rated 201-300 lb-ft (401-500 Nm). Shaft power output is 29 HP at 500 RPM and 57 HP at 1,000 RPM. Compatible transmissions include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM applications. Call us to confirm proper fit for your truck and transmission.
Features
6-bolt mounting for broad transmission compatibility including Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM
Pneumatic (air) shift and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
1-1/4" round output shaft with 5/16" keyway
Continuous torque rated up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Shaft power output: 29 HP at 500 RPM, 57 HP at 1,000 RPM
Smart-Start option supports high-torque start-up conditions; rotatable flanges for flexible installation
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic (Air Shift), PowerShift (Pneumatic/Hydraulic) with Integral Air Control Valve
- Output Shaft Type: 1-1/4" Round Shaft with 5/16" Key
- Continuous Torque: 300 lb-ft / 407 Nm (Check Application Pages for Actual Torque Ratings)
- Intermittent Torque: 201-300 lb-ft / 401-500 Nm
- Output Power: 56+ HP / 41-50 kW
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other applications
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
