The Chelsea 272 Series power take-off assembly, part number 272XBAJP-B3RY or 272XBAJPB3RY, is a 6-bolt hot shift PTO designed for medium-duty truck applications including aerial, construction equipment, towing and recovery, and water trucks. The 272 Series supports intermittent torque ratings from 201 to 300 lb-ft and output power of 56 or more HP. Available with pneumatic or hydraulic shift, it includes an integral air control valve and features rotatable flanges for flexible installation. Output shaft options include a 1-inch round shaft with 1/4-inch key and a 1-1/4-inch round shaft with 5/16-inch key. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting configuration for medium-duty hot shift applications
Intermittent torque rating: 201 to 300 lb-ft (401 to 500 Nm)
Output power: 56+ HP (41 to 50 kW)
Integral air control valve included
Pneumatic or hydraulic shift options available
Rotatable flanges for versatile installation positioning
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Intermittent Torque: 201 to 300 lb-ft (401 to 500 Nm)
- Output Power: 56+ HP (41 to 50 kW)
- Output Shaft Options: 1" Round Shaft with 1/4" Key; 1-1/4" Round Shaft with 5/16" Key
- Lubrication Codes: X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
Additional Information
The Chelsea 272 Series consolidates several earlier medium-duty PTO lines, including the 230, 231, 236, 238, 270, and 271 Series, into a single platform with nine speed ratios and eighteen shift options. The series supports direct mount and driveshaft output configurations. Direct mount options include an optional Wet-Spline design for extended PTO and pump shaft service life. Driveshaft output configurations are available with Smart-Start for high-torque start-up conditions. Typical markets served include aerial, construction equipment, towing and recovery, water trucks, 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.
