The Chelsea 272 Series Power Take-Off Assembly, part number 272HPLLP-B8RY or 272HPLLPB8RY, is a 6-bolt hot-shift PTO with pneumatic and PowerShift (pneumatic/hydraulic) shift options. The output shaft is a 1-1/4" round with a 5/16" key. Intermittent torque rating spans 201-300 lb-ft (401-500 Nm), with a continuous torque capability up to 300 lb-ft (407 Nm) - verify actual rating against the application pages for your specific installation. Output power reaches 56+ HP (41-50 kW); shaft power is rated at 29 HP (21 kW) at 500 RPM and 57 HP (43 kW) at 1,000 RPM. Compatible transmissions include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM. Call us to confirm proper fit for your application.
Features
6-bolt mounting for medium-duty hot-shift applications
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
1-1/4" round output shaft with 5/16" key
Intermittent torque rating: 201-300 lb-ft (401-500 Nm)
Continuous torque capability up to 300 lb-ft (407 Nm) - check application pages for verified rating
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic, PowerShift (Pneumatic/Hydraulic)
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- 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
- Output Power: 56+ HP (41-50 kW)
- Shaft Power at 500 RPM: 29 HP (21 kW)
- Shaft Power at 1,000 RPM: 57 HP (43 kW)
- Compatible Transmissions: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM
Additional Information
The Chelsea 272 Series consolidates several earlier medium-duty PTO lines into a single platform. The series offers nine speed ratios and eighteen shift configurations, with direct-mount and driveshaft output options. Direct-mount configurations are available with the optional Wet-Spline design for extended PTO and pump shaft service life. Driveshaft outputs can be equipped with the Smart-Start feature for high-torque engagement conditions. The 272 Series is applied across aerial, construction equipment, towing and recovery, and water truck markets.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
