The Chelsea 272XCAJX-B3RK or 272XCAJXB3RK is a 6-bolt, hot shift power take-off from the Chelsea 272 Series, a medium-duty PTO line that consolidates several earlier Chelsea series into one flexible platform. This unit runs a 1-1/4" round output shaft with a 5/16" key and shifts via pneumatic or hydraulic (PowerShift) actuation, with an integral air control valve included. Continuous torque capability reaches 300 lb-ft (407 Nm); intermittent torque is rated at 201-300 lb-ft (401-500 Nm). Output power exceeds 56 HP (41-50 kW). Compatible transmissions span Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and select others. Call us to confirm proper fit for your application.
Features
6-Bolt mounting configuration for broad transmission compatibility
1-1/4" round output shaft with 5/16" key
Pneumatic or hydraulic (PowerShift) shift with integral air control valve
Continuous torque rating up to 300 lb-ft (407 Nm)
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: Up to 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
- Shift Type: Pneumatic or Hydraulic (PowerShift)
- Output Power: 56+ HP (41-50 kW)
- Shaft Power at 500 RPM: 29 HP (21 kW); at 1000 RPM: 57 HP (43 kW)
- Compatible Transmissions: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and select others
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 PTO series into a single medium-duty platform. The series offers nine speed ratios and eighteen shift options. Direct-mount configurations are available with an optional Wet-Spline design for extended PTO and pump shaft service life. Driveshaft output versions include the Smart-Start feature for high-torque engagement conditions. Typical markets include towing and recovery, aerial work, construction equipment, and water trucks. The 272 Series is also listed for defense, material handling, and water drilling applications. The part number 272XCAJX-B3RK is also referenced as SP272XCAJX-B3RK in some catalog systems.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
