The Chelsea 272XDAJP-A3XD or 272XDAJPA3XD is a 6-bolt hot-shift power take-off from the Chelsea 272 Series, designed for medium-duty commercial truck applications. It mounts to transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM, among others. The output shaft is a 1-1/4" round shaft with a 5/16" key. Shift is pneumatic (air) or PowerShift (pneumatic/hydraulic), with an integral air control valve included. The 272 Series carries a continuous torque rating up to 300 lb-ft (407 Nm) and intermittent torque in the 201-300 lb-ft (401-500 Nm) range; confirm actual ratings on the application-specific pages for this configuration. Output power exceeds 56 HP (41-50 kW). Available from Pro Gear and Transmission. 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 (air) or PowerShift (pneumatic/hydraulic) shift with integral air control valve
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
Shaft power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
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 (air shift) or PowerShift (pneumatic/hydraulic)
- Output Power: 56+ HP (41-50 kW)
- Shaft Power at 500 RPM: 29 HP (21 kW)
- Shaft Power at 1,000 RPM: 57 HP (43 kW)
- Compatible Transmissions: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other manufacturers
Additional Information
The Chelsea 272 Series consolidates several earlier Chelsea medium-duty PTO lines - including the 230, 231, 236, 238, 270, and 271 Series - into a single, more versatile platform. The series offers nine speed ratios and eighteen shift options. Direct-mount outputs are available with optional Wet-Spline technology for extended PTO and pump shaft service life. Driveshaft output configurations include the Smart-Start option, suited for high-torque start-up conditions. Rotatable flanges allow flexible installation orientation. Typical application markets for the 272 Series include towing and recovery, aerial work platforms, construction equipment, and water trucks.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
