The Chelsea 272 Series Power Take-Off Assembly, part number 272XBAJX-V3RK or 272XBAJXV3RK, is a medium-duty hot-shift PTO built on a 6-bolt mounting pattern. It delivers up to 300 lb-ft of continuous torque and 201-300 lb-ft intermittent torque, with output power rated at 56+ HP. The 1-1/4" round output shaft features a 5/16" keyway. Shift is pneumatic (PowerShift pneumatic/hydraulic), and the unit includes an integral air control valve. Compatible transmission manufacturers include Ford, Allison, Eaton/Fuller, Aisin, Volvo/Mack, and RAM, among others. The 272 Series consolidates several earlier Chelsea medium-duty PTO lines into one flexible platform suited for aerial, construction, towing and recovery, and water truck applications. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting pattern for broad transmission compatibility
1-1/4" round output shaft with 5/16" keyway
Pneumatic shift with integral air control valve (PowerShift pneumatic/hydraulic)
Continuous torque rating up to 300 lb-ft (407 Nm); 201-300 lb-ft intermittent
Output power rated at 56+ HP (41-50 kW)
Compatible with Ford, Allison, Eaton/Fuller, 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 with 5/16" key
- Output Power: 56+ HP (41-50 kW)
- Shaft Power at 500 RPM: 29 HP (21 kW); at 1000 RPM: 57 HP (43 kW)
- Shift Type: Pneumatic / PowerShift (Pneumatic/Hydraulic)
- Compatible Transmissions: Ford, Allison, Eaton/Fuller, Aisin, Volvo/Mack, RAM, and other manufacturers
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 series into a single medium-duty hot-shift platform. The series offers nine speed ratios and eighteen shift options. Direct-mount configurations include an optional Wet-Spline design for extended PTO and pump shaft service life. Driveshaft output configurations are available with the Smart-Start option, engineered for high-torque start-up conditions. Rotatable flanges allow flexible installation positioning. Typical market applications include aerial equipment, construction machinery, towing and recovery, and water trucks.Parts manual and diagrams: Chelsea 272 Series PTO parts list with prices
