The Chelsea 272XMAJX-J3XR or 272XMAJXJ3XR is a 272 Series hot shift power take-off assembly built on a 6-bolt mounting pattern. The 272 Series supports intermittent torque up to 300 lb-ft (401-500 Nm) and delivers 56-plus HP of output power. It is available with pneumatic or hydraulic shift and includes an integral air control valve. Rotatable flanges allow flexible installation, and the series offers both round shaft outputs: 1 in. with a 1/4 in. key and 1-1/4 in. with a 5/16 in. key. The 272 platform consolidates the earlier 230, 231, 236, 238, 270, and 271 series into a single versatile unit. Common applications include aerial equipment, construction equipment, water trucks, and towing and recovery. Call us to confirm this configuration fits your specific transmission and pump setup.
Features
Chelsea 272 Series 6-bolt hot shift PTO assembly
Intermittent torque rating: up to 300 lb-ft (401-500 Nm)
Output power: 56-plus HP (41-50 kW)
Pneumatic or hydraulic shift with integral air control valve
Rotatable flanges for flexible mounting orientation
Consolidates 230, 231, 236, 238, 270, and 271 series into one platform
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Output Power: 56+ HP (41-50 kW)
- Output Shaft Type: Round Shaft 1 in. with 1/4 in. key, or Round Shaft 1-1/4 in. with 5/16 in. key
- Integral Air Control Valve: Included
Additional Information
The Chelsea 272 Series replaces and consolidates several earlier medium-duty hot shift PTO families, including the 230, 231, 236, 238, 270, and 271 series. The platform offers nine speed ratios and eighteen shift options, making it one of the most configurable medium-duty PTOs in the Chelsea lineup. 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, designed to handle high-torque start-up conditions. Typical markets served by the 272 Series include aerial work platforms, construction equipment, water trucks, towing and recovery, and defense applications. Part number 272XMAJX-J3XR is also referenced as SP272XMAJX-J3XR.Parts manual and diagrams: Chelsea 272 Series PTO parts list with prices
