The Chelsea 272 Series PTO Assembly, part number 272ACKUP-L5RY or 272ACKUPL5RY, is a 6-bolt hot shift power take-off designed for medium-duty applications including aerial, towing and recovery, construction equipment, and water trucks. The 272 Series supports up to 300 lb-ft of intermittent torque and is available in both pneumatic and hydraulic shift configurations, with an integral air control valve included. Output shaft options in this series include a 1-inch round shaft with 1/4-inch key and a 1-1/4-inch round shaft with 5/16-inch key. The 272 Series consolidates the 230, 231, 236, 238, 270, and 271 series into a single platform, offering nine speed ratios and eighteen shift options. Call us to confirm proper fit for your transmission and application.
Features
Chelsea 272 Series 6-bolt hot shift PTO assembly
Up to 300 lb-ft intermittent torque capacity
Pneumatic or hydraulic shift with integral air control valve
Nine speed ratios and eighteen shift options
Round shaft output: 1-inch with 1/4-inch key or 1-1/4-inch with 5/16-inch key
Consolidates the 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 to 300 lb-ft (401 to 500 Nm)
- Output Power: 56+ HP (41 to 50 kW)
- Output Shaft Options: 1-inch round shaft with 1/4-inch key; 1-1/4-inch round shaft with 5/16-inch key
- Speed Ratios: 9 available
- Shift Options: 18 available
- Lubricant Options: No Pressure Lube, Pressure Lube, or Wet Spline
Additional Information
The Chelsea 272 Series replaces and consolidates the earlier 230, 231, 236, 238, 270, and 271 series hot shift PTOs into a single platform. Direct mount outputs include an optional Wet-Spline configuration for extended PTO and pump shaft service life. Driveshaft output models in this series are available with the Smart-Start feature for high-torque start-up conditions. Rotatable flanges allow flexible installation across a range of mounting orientations. Common applications include aerial platforms, towing and recovery, construction equipment, and water trucks.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
