Description
The Chelsea 282GGAJX-13XD or 282GGAJX13XD is a medium-duty hot-shift power take-off assembly from the Chelsea 282 Series, designed for demanding continuous-duty applications. This 8-bolt unit accepts pneumatic or PowerShift (pneumatic/hydraulic) actuation and delivers output through a 1-1/4″ round shaft with a 5/16″ keyway. The 282 Series carries an intermittent torque rating of 201-300 lb-ft (401-500 Nm) and a continuous torque capability of up to 300 lb-ft (407 Nm) — verify actual ratings on the application pages for your specific installation. Shaft power output reaches 57 HP (43 kW) at 1,000 RPM. Compatible with Allison, Eaton/Fuller, Volvo/Mack, and other transmission families. Call Pro Gear and Transmission to confirm proper fit for your application.
Features
8-Bolt mounting configuration for medium-duty hot-shift applications
1-1/4″ round output shaft with 5/16″ keyway
Pneumatic or PowerShift (pneumatic/hydraulic) shift with integral air valve
Continuous-duty torque rating up to 300 lb-ft (407 Nm); intermittent rating 201-300 lb-ft (401-500 Nm)
Rotatable flanges for flexible installation orientation
Smart Start option for high-torque start-up; Wet-Spline option available for extended shaft life
Tech Specs
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: Up to 300 lb-ft (407 Nm) – check application pages for actual torque ratings
- Output Shaft Type: 1-1/4″ Round with 5/16″ Key
- Shift Type: Pneumatic or PowerShift (Pneumatic/Hydraulic)
- Mounting Type: 8-Bolt
- Output Power: 56+ HP (41-50 kW)
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Compatible Transmissions: Allison, Eaton/Fuller, Volvo/Mack, and other manufacturers
Additional Information
The 282 Series is suited for aerial, construction equipment, towing and recovery, water truck, and fuel oil delivery applications. The series includes nine speed ratios and eighteen shift options. Wet-Spline technology is available on direct-mount configurations to reduce wear on PTO and pump shafts. Driveshaft output configurations include a positive stop to prevent seal damage from driveshaft yokes.
Parts Manual: Chelsea 282 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.






