The Chelsea 272 Series power take-off assembly, part number 272LSFNX-A5RK or 272LSFNXA5RK, is a 6-bolt hot shift PTO built for medium-duty mobile equipment. The 272 Series supports intermittent torque ratings of 201 to 300 lb-ft (401 to 500 Nm) and delivers 56 or more horsepower output. Available with pneumatic or hydraulic shift, this series includes an integral air control valve and offers rotatable flanges for flexible installation. Output shaft options include a round shaft with 1-inch by 1/4-inch key or a 1-1/4-inch by 5/16-inch key configuration. The 272 Series consolidates several earlier Chelsea medium-duty PTO lines into one platform, making it a common fit across towing and recovery, aerial, construction, and water truck applications. Call us to confirm proper fit for your 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)
Pneumatic or hydraulic shift with integral air control valve
Rotatable flanges for versatile installation
Round shaft output: 1" x 1/4" key or 1-1/4" x 5/16" key options
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Integral Air Control Valve: Yes
- Intermittent Torque: 201 to 300 lb-ft (401 to 500 Nm)
- Output Power: 56+ HP (41 to 50 kW)
- Output Shaft: Round Shaft - 1" with 1/4" key, or 1-1/4" with 5/16" key
- Rotatable Flanges: Yes
- Dimensions (H x W x L): 15 x 12 x 14 in.
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 PTO series into a single medium-duty hot shift platform. The series offers nine speed ratios and eighteen shift options, along with direct mount and driveshaft output configurations. Direct mount versions are available with optional Wet-Spline technology for extended PTO and pump shaft service life. Driveshaft output versions can include the Smart-Start feature for high-torque start-up conditions. Common applications include aerial equipment, towing and recovery vehicles, construction machinery, and water trucks. Also referenced as part number SP272LSFNX-A5RK.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
