The Chelsea 272 Series power take-off assembly, part number 272XBAJP-H3XV or 272XBAJPH3XV, is a 6-bolt hot shift PTO designed for medium-duty truck applications including aerial, construction equipment, water trucks, and towing and recovery. The 272 Series supports intermittent torque ratings from 201 to 300 lb-ft (401-500 Nm) and delivers 56-plus horsepower output. Shift options include pneumatic (air) or hydraulic, and the unit comes with an integral air control valve. The series features rotatable flanges and an optional wet-spline output for extended PTO and pump shaft life. A Smart Start option is available for high-torque start-up conditions. Call us to confirm this part number fits your specific transmission and application.
Features
6-bolt mounting configuration
Hot shift operation with pneumatic or hydraulic shift options
Intermittent torque rating: 201-300 lb-ft (401-500 Nm)
Output power: 56+ HP (41-50 kW)
Integral air control valve included
Wet-spline output option for extended PTO and pump shaft service life
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic (Air) 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)
- Lubricant Options: X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
Additional Information
The Chelsea 272 Series consolidates and replaces the earlier 230, 231, 236, 238, 270, and 271 series medium-duty hot shift PTOs into a single updated platform. The 272 Series offers nine speed ratios and eighteen shift configurations. Direct-mount output options include the optional wet-spline design for longer service life; driveshaft output configurations include the Smart Start option suited to high-torque engagement conditions. Common markets include aerial equipment, construction equipment, water trucks, towing and recovery, defense, and material handling.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
