The Chelsea 272HPLLP-B8RK or 272HPLLPB8RK is a 272 Series medium-duty hot-shift power take-off with a 6-bolt mounting pattern and pneumatic/hydraulic PowerShift operation. The output shaft is a 1-1/4" round design with a 5/16" key, rated for continuous torque up to 300 lb-ft (407 Nm) and intermittent torque in the 201-300 lb-ft (401-500 Nm) range. 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. Compatible transmission families include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM applications. The 272 Series consolidates earlier Chelsea 230, 231, 236, 238, 270, and 271 series PTOs into a single platform. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting pattern for broad transmission compatibility
Pneumatic and hydraulic PowerShift (hot-shift) operation with integral air control valve
1-1/4" round output shaft with 5/16" key
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
56+ HP output; 57 HP (43 kW) shaft power at 1,000 RPM
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic / Hydraulic PowerShift (hot-shift)
- Output Shaft Type: 1-1/4" Round 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 at 500 RPM: 29 HP / 21 kW
- Shaft Power at 1,000 RPM: 57 HP / 43 kW
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other applications
Additional Information
The Chelsea 272 Series consolidates six earlier Chelsea medium-duty PTO lines - the 230, 231, 236, 238, 270, and 271 - into one platform. The series offers nine speed ratios, eighteen shift options, and a range of direct-mount and driveshaft output configurations. Direct-mount variants are available with optional Wet-Spline technology for extended PTO and pump shaft life. Driveshaft output variants are available with the Smart-Start option for high-torque start-up conditions. Rotatable flanges allow flexible installation orientation. Typical application markets include towing and recovery, aerial, construction equipment, and water trucks.Parts manual and diagrams: Chelsea 272 Series PTO parts list with prices
