The Chelsea 272 Series power take-off assembly, part number 272KKJKX-13RF or 272KKJKX13RF, is a 6-bolt hot shift PTO designed for medium-duty truck applications including aerial, towing and recovery, construction equipment, and water trucks. The 272 Series supports intermittent torque ratings from 201 to 300 lb-ft and delivers 56 or more horsepower output. Shift options include pneumatic or hydraulic, and the series features an integral air control valve. Output shaft options in the 272 family include round shaft configurations with 1-inch or 1-1/4-inch sizes. The 272 Series consolidates several earlier Chelsea PTO lines into one versatile platform with nine speed ratios and eighteen shift options. Call us to confirm proper fit for your transmission and application.
Features
Chelsea 272 Series 6-bolt mounting configuration
Hot shift operation with pneumatic or hydraulic shift options
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
Smart-Start option available for high-torque start-up conditions
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 Type: Round Shaft (1 in. with 1/4 in. key) or Round Shaft (1-1/4 in. with 5/16 in. key)
- Sold as: Each
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. With nine available speed ratios and eighteen shift configurations, the 272 Series covers a wide range of direct-mount and driveshaft output arrangements. Direct-mount options include an optional Wet-Spline design for extended PTO and pump shaft service life. Driveshaft output models can be specified with Smart-Start for demanding high-torque engagement conditions. Common applications include aerial lift trucks, towing and recovery vehicles, construction equipment, and water trucks. Part number 272KKJKX-13RF or 272KKJKX13RF is sold by Pro Gear and Transmission.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
