The Chelsea 272 Series Power Take-Off Assembly, part number 272KDJKX-P3XD or 272KDJKXP3XD, is a 6-bolt hot-shift PTO designed for medium-duty work truck applications. It mounts with a 6-bolt pattern and delivers a 1-1/4" round output shaft with a 5/16" key. Shift actuation is pneumatic (PowerShift), with an integral air control valve included. Intermittent torque capacity runs 201-300 lb-ft (401-500 Nm); continuous torque is rated at 300 lb-ft (407 Nm), though actual ratings vary by application. Compatible transmission makes include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM platforms, among others. The 272 Series consolidates and replaces the earlier 230, 231, 236, 238, 270, and 271 Chelsea PTO lines. Call us to confirm proper fit for your truck and transmission.
Features
6-Bolt mounting pattern for broad transmission compatibility
1-1/4" round output shaft with 5/16" key
Pneumatic/PowerShift hot-shift operation with integral air control valve
Intermittent torque rating: 201-300 lb-ft (401-500 Nm)
Continuous torque rating: 300 lb-ft (407 Nm) - verify against application pages
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 with 5/16" Key
- Shift Type: Pneumatic / PowerShift (Pneumatic/Hydraulic)
- Output Power: 56+ HP (41-50 kW)
- Shaft Power at 500 RPM: 29 HP (21 kW); at 1000 RPM: 57 HP (43 kW)
- Compatible Transmission Makes: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and Other
- Lubricant Designation (P): Pressure Lube
Additional Information
The Chelsea 272 Series consolidates and replaces six earlier Chelsea PTO lines: the 230, 231, 236, 238, 270, and 271 Series. The 272 offers nine speed ratios and eighteen shift options, making it the most flexible configuration in Chelsea's medium-duty hot-shift lineup. The series supports both direct-mount and driveshaft output configurations. Direct-mount versions offer an optional Wet-Spline feature for extended PTO and pump shaft service life. Driveshaft output versions support the Smart-Start option, which is designed to handle high-torque start-up conditions. Typical market applications include aerial work platforms, construction equipment, water trucks, and towing and recovery vehicles.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
