The Chelsea 272 Series power take-off assembly, part number 272XPAJX-A3BD or 272XPAJXA3BD, is a 6-bolt hot shift PTO rated for up to 300 lb-ft of intermittent torque. The 272 Series consolidates multiple medium-duty PTO lines into a single, flexible platform offering hydraulic or pneumatic shift options and an integral air control valve. Available output shaft configurations include round shaft with 1-inch and 1-1/4-inch keyway options, and rotatable flanges allow flexible mounting orientation. The series supports aerial, towing and recovery, construction equipment, and water truck applications. 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: up to 300 lb-ft (401-500 Nm)
Available with hydraulic or pneumatic (air) shift; includes integral air control valve
Rotatable flanges for flexible installation orientation
Round shaft output options: 1-inch with 1/4-inch key or 1-1/4-inch with 5/16-inch key
Smart-Start option supports high-torque start-up conditions; wet-spline option available for extended shaft life
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Hydraulic or Pneumatic (Air)
- Intermittent Torque: Up to 300 lb-ft (401-500 Nm)
- Output Shaft Type: Round Shaft - 1 in. with 1/4 in. key, or 1-1/4 in. with 5/16 in. key
- Output Power: 56+ HP (41-50 kW range at continuous rating)
- Lubricant Options: X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 PTO lines into a single medium-duty platform. The series offers nine speed ratios and eighteen shift configurations, making it one of the most adaptable 6-bolt hot shift PTOs available. Common applications include aerial lifts, towing and recovery units, construction equipment, and water trucks. The direct-mount outputs offer an optional wet-spline interface for longer PTO and pump shaft service life, while driveshaft output configurations can include the Smart-Start feature for demanding high-torque engagement conditions.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
