The Chelsea 272 Series Power Take-Off, part number 272XDAJX-A3RB or 272XDAJXA3RB, is a 6-bolt hot-shift PTO designed for medium-duty work in towing and recovery, aerial, construction, and water truck applications. It mounts to transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM. The 1-1/4" round output shaft with a 5/16" key accepts direct-mount or driveshaft-driven accessories. Shift is pneumatic or PowerShift (pneumatic/hydraulic), with an integral air control valve included. The 272 Series carries a continuous torque rating of 300 lb-ft and an intermittent rating of 201-300 lb-ft. Output power reaches 56+ HP, with shaft power of 29 HP at 500 RPM and 57 HP at 1,000 RPM. Call us to confirm proper fit for your application.
Features
6-bolt mounting compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
1-1/4" round output shaft with 5/16" key
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
Continuous torque rating: 300 lb-ft (407 Nm); intermittent torque: 201-300 lb-ft (401-500 Nm)
Output power: 56+ HP (41-50 kW); 57 HP at 1,000 RPM shaft speed
Suited for aerial, towing and recovery, construction, and water truck markets
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: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Shift Type: Pneumatic or PowerShift (Pneumatic/Hydraulic)
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, 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 platform, offering nine speed ratios and eighteen shift options. The series supports direct-mount and driveshaft outputs. Direct-mount configurations are available with optional Wet-Spline technology for extended PTO and pump shaft service life. Driveshaft output configurations include the Smart-Start option for high-torque start-up conditions. Flanges are rotatable to suit varied installation orientations. The 272 Series is used across aerial, construction equipment, towing and recovery, water truck, defense, material handling, and water drilling applications.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
