The Chelsea 272 Series Power Take-Off, part number 272XKJWX-P3XD or 272XKJWXP3XD, is a 6-bolt hot-shift PTO designed for medium-duty applications in towing and recovery, aerial, construction, and water truck service. It features a 1-1/4" round output shaft with a 5/16" key and supports both pneumatic and PowerShift (pneumatic/hydraulic) engagement. The 272 Series carries a continuous torque rating up to 300 lb-ft (407 Nm) and an intermittent torque range of 201-300 lb-ft (401-500 Nm). Output power exceeds 56 HP at rated conditions. Compatible transmission manufacturers include Ford, Aisin, Allison, Eaton/Fuller, Volvo/Mack, RAM, and other select platforms. This unit includes a pressure-lube configuration with wet-spline output as decoded from the part number suffix. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting for medium-duty hot-shift applications
1-1/4" round output shaft with 5/16" key
Pneumatic and PowerShift (pneumatic/hydraulic) shift options
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent 201-300 lb-ft (401-500 Nm)
Output power rated at 56+ HP (41-50 kW)
Compatible with Ford, Allison, Eaton/Fuller, Aisin, Volvo/Mack, RAM, and other transmission families
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: 500 RPM: 29 HP (21 kW); 1000 RPM: 57 HP (43 kW)
- Shift Type: Pneumatic, PowerShift (Pneumatic/Hydraulic)
- Transmission Compatibility: Ford, Aisin, Allison, Eaton/Fuller, Volvo/Mack, RAM, Other
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 Series into a single medium-duty platform. The series offers 9 speed ratios and 18 shift configurations, making it one of the most flexible 6-bolt PTOs available. Direct-mount outputs include an optional Wet-Spline configuration for extended PTO and pump shaft service life. Driveshaft output configurations include the Smart-Start option, which is engineered for high-torque start-up conditions. The integral air control valve is built in, and flanges are rotatable for flexible installation. Common application markets include aerial equipment, construction machinery, towing and recovery, water trucks, material handling, and defense. Pro Gear and Transmission carries genuine Chelsea parts for the 272 Series. Call us to confirm the right configuration for your transmission and duty cycle.Parts manual and diagrams: Chelsea 272 Series PTO parts list with prices
