The Chelsea 272 Series PTO Assembly, part number 272MBAJP-H3XR or 272MBAJPH3XR, is a 6-bolt medium-duty hot shift power take-off built for demanding mobile equipment applications. It handles intermittent torque ratings from 201 to 300 lb-ft (401-500 Nm) and delivers 56+ HP of output power. The 272 Series consolidates multiple predecessor series into a single platform with nine speed ratios, eighteen shift configurations, and both hydraulic and pneumatic shift options. An integral air control valve is included. Direct-mount outputs are available with optional Wet-Spline technology for extended PTO and pump shaft service life. Driveshaft output configurations include Smart-Start for high-torque start-up conditions. Common applications include aerial work platforms, towing and recovery, construction equipment, and water trucks. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting configuration
Hot shift design with hydraulic or pneumatic shift options
Intermittent torque rating: 201-300 lb-ft (401-500 Nm)
Output power: 56+ HP (41-50 kW)
Includes integral air control valve
Optional Wet-Spline and Smart-Start configurations available within the 272 Series
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Hydraulic or Pneumatic (Air)
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Output Power: 56+ HP (41-50 kW)
- Speed Ratios Available (Series): 9
- Shift Options Available (Series): 18
- Output Shaft Type: Round Shaft (1" - 1/4" Key) or Round Shaft (1-1/4" - 5/16" Key)
- Lubricant Options: No Pressure Lube, Pressure Lube, or Wet Spline
- NMFC Code: 128520 - Hydraulic PTOs, Pumps, Motors, etc.
Additional Information
The Chelsea 272 Series consolidates and replaces the earlier 230, 231, 236, 238, 270, and 271 Series medium-duty PTOs into a single unified platform. Rotatable flanges allow flexible installation positioning. The optional Smart-Start feature manages high-torque start-up loads on driveshaft-output configurations. Markets served include aerial, construction equipment, towing and recovery, water trucks, defense, and material handling. Parker Chelsea publishes a dedicated parts list (HY25-2272-M1_US), sales literature, and a combined 272/282/852/885 Series Owner's Manual for this product family. Part number 272MBAJP-H3XR is also referenced as SP272MBAJP-H3XR in some catalog systems.Parts manual and diagrams: Chelsea 272 Series PTO parts list with prices
