The Chelsea 272GGAJX-13RK is a 6-bolt hot shift Power Take-Off assembly from the Chelsea 272 Series, designed for medium-duty applications including aerial, construction equipment, towing and recovery, and water truck service. The 272 Series supports up to 300 lb-ft intermittent torque and delivers 56 or more horsepower output, with both hydraulic and pneumatic air shift options. An integral air control valve is included. The 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 Chelsea PTO lines into a single platform offering nine speed ratios and eighteen shift configurations. Rotatable flanges and a wet-spline option help extend PTO and pump shaft service life. 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; 56+ HP output
Hydraulic or pneumatic air shift with integral air control valve
Rotatable flanges for flexible installation
Wet-spline option available for extended PTO and pump shaft life
Consolidates Chelsea 230, 231, 236, 238, 270, and 271 series into one platform
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Hydraulic or Pneumatic (Air)
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Output Power: 56+ HP (41-50 kW)
- Speed Ratios: 9 available
- Shift Configurations: 18 available
- Output Shaft Options: Round shaft with 1 in. - 1/4 in. key or 1-1/4 in. - 5/16 in. key
- Lubricant Options: No pressure lube, pressure lube, or wet spline
- Part Number: 272GGAJX-13RK or 272GGAJX13RK
Additional Information
The Chelsea 272 Series replaces and consolidates several earlier Chelsea medium-duty PTO lines: the 230, 231, 236, 238, 270, and 271 Series. If your equipment previously used one of those series, the 272 Series is the current platform to reference. Common markets for this assembly include aerial work platforms, construction equipment, towing and recovery vehicles, water trucks, material handling, and defense applications. The Smart Start feature accommodates high-torque start-up conditions, making it suitable for demanding hydraulic pump engagements. Direct-mount configurations support the wet-spline option; driveshaft output configurations support Smart Start. Contact Pro Gear and Transmission to verify which configuration and ratio best matches your transmission and application.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
