Description
The Chelsea 282XMAJX-A5RB or 282XMAJXA5RB is a medium-duty hot-shift power take-off from the Chelsea 282 Series, designed for continuous-duty applications up to 300 lb-ft (407 Nm). It mounts via an 8-bolt flange and accepts pneumatic or PowerShift (pneumatic/hydraulic) actuation. The output is a 1-1/4″ round shaft with a 5/16″ key. Shaft power output runs 29 HP (21 kW) at 500 RPM and 57 HP (43 kW) at 1,000 RPM. Compatible transmissions include Allison, Volvo/Mack, and Eaton/Fuller, among others. Common applications span aerial work, construction equipment, towing and recovery, water trucks, and fuel oil delivery. Call us to confirm proper fit for your transmission and chassis.
Features
8-Bolt mounting, compatible with Allison, Volvo/Mack, and Eaton/Fuller transmissions
Pneumatic or PowerShift (pneumatic/hydraulic) shift actuation with integral air valve
1-1/4″ round output shaft with 5/16″ key
Continuous-duty torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Shaft power: 29 HP (21 kW) at 500 RPM, 57 HP (43 kW) at 1,000 RPM
Rotatable flanges, optional wet-spline lubrication, and Smart Start option for high-torque engagement
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: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Compatible Transmissions: Allison, Volvo/Mack, Eaton/Fuller, and other select manufacturers
Additional Information
Parts Manual: Chelsea 282 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.









