Description
The Chelsea 282XMAJX-A3RK or 282XMAJXA3RK is an 8-bolt PTO assembly rated for up to 300 lb-ft continuous torque (407 Nm) and up to 201-300 lb-ft intermittent torque (401-500 Nm). Output is delivered through a 1-1/4″ round shaft with a 5/16″ key. Shift type is pneumatic or PowerShift (pneumatic/hydraulic), with an integral air valve built into the unit. Rotatable flanges allow flexible installation positioning. Compatible with Allison, Eaton/Fuller, Volvo/Mack, and other transmission platforms. Shaft power output reaches 57 HP (43 kW) at 1,000 RPM. Optional wet-spline and Smart Start configurations are available for high-torque startup applications. Call us to confirm proper fit for your application.
Features
8-bolt mounting pattern for broad transmission compatibility including Allison, Eaton/Fuller, and Volvo/Mack
1-1/4″ round output shaft with 5/16″ key
Continuous-duty torque rating: 300 lb-ft (407 Nm); verify actual rating on Chelsea application pages
Pneumatic or PowerShift (pneumatic/hydraulic) shift with integral air valve
Rotatable flanges for flexible installation orientation
Smart Start option for high-torque startup; wet-spline option available
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
- Output Shaft Type: 1-1/4″ Round with 5/16″ Key
- Mounting Type: 8-Bolt
- Shift Type: Pneumatic or PowerShift (Pneumatic/Hydraulic)
- Output Power: 56+ HP (41-50 kW)
- Shaft Power at 500 RPM: 29 kW / 21 HP
- Shaft Power at 1,000 RPM: 57 HP / 43 kW
- Compatible Transmissions: Allison, Eaton/Fuller, Volvo/Mack, Other
Additional Information
Parts Manual: Chelsea 282 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.






