Chelsea part number 272JMLLP-B8RK or 272JMLLPB8RK is a 272 Series hot shift power take-off with a 6-bolt mounting configuration. The output shaft is a 1-1/4" round shaft with a 5/16" key, and shift is handled pneumatically or via PowerShift (pneumatic/hydraulic). Continuous torque capability for the 272 Series reaches 300 lb-ft (407 Nm), with intermittent torque rated at 201-300 lb-ft (401-500 Nm). Output power covers 56+ HP (41-50 kW). Compatible transmissions span a broad range including Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM applications. The 272 Series also consolidates several earlier Chelsea PTO lines into one versatile platform. Call us to confirm proper fit for your application.
Features
6-bolt mounting configuration for broad transmission compatibility
Pneumatic and PowerShift (pneumatic/hydraulic) shift options
1-1/4" round output shaft with 5/16" key
Continuous torque capability up to 300 lb-ft (407 Nm) for the 272 Series
Intermittent torque rating: 201-300 lb-ft (401-500 Nm)
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
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 shaft with 5/16" key
- Output Power: 56+ HP (41-50 kW)
- Shaft Power: 29 HP at 500 RPM / 57 HP at 1000 RPM (21 kW at 500 RPM / 43 kW at 1000 RPM)
- Shift Type: Pneumatic, PowerShift (Pneumatic/Hydraulic)
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, Other
Additional Information
The Chelsea 272 Series consolidates several earlier Chelsea medium-duty hot shift PTO lines, including the 230, 231, 236, 238, 270, and 271 series, into a single platform. The series offers 9 speed ratios, 18 shift options, and comes with an integral air control valve. Rotatable flanges allow flexible installation. Wet-spline technology is available on direct-mount configurations to extend PTO and pump shaft service life. Smart-Start is available on driveshaft output configurations for high-torque start-up conditions. Typical market applications include aerial, construction equipment, towing and recovery, and water trucks.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
