The Chelsea 272MAAJX-A5RK is a 272 Series hot shift power take-off assembly built on a 6-bolt mounting configuration. Part of Chelsea's medium-duty 272 Series, this PTO supports intermittent torque ratings from 201 to 300 lb-ft and is engineered for continuous-duty cycles when de-rated per Chelsea application guidelines. The 272 Series offers pneumatic or hydraulic shift options and includes an integral air control valve. Output shaft options across the series include round shaft configurations with key drives. Common applications include aerial work platforms, construction equipment, towing and recovery, and water trucks. Also referenced as 272MAAJXA5RK. Available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Chelsea 272 Series 6-bolt hot shift PTO assembly
Intermittent torque rating: 201 to 300 lb-ft (401 to 500 Nm)
Pneumatic or hydraulic shift with integral air control valve
Continuous-duty capable with application-specific de-rate (30%)
Rotatable flanges for flexible installation
Smart Start option available for high-torque start-up conditions
Suited for aerial, construction, towing and recovery, and water truck applications
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)
- Continuous Torque: De-rate 30% from intermittent rating (see Chelsea application guidelines)
- Lubricant Code X: No Pressure Lube; Code P: Pressure Lube; Code W: Wet Spline
- Dimensions (H x W x L): 15 in. x 12 in. x 14 in.
Additional Information
The Chelsea 272 Series consolidates and replaces the earlier 230, 231, 236, 238, 270, and 271 Series medium-duty hot shift PTOs into a single unified platform. The series offers nine speed ratios and eighteen shift configurations. Wet-Spline technology is available on direct-mount outputs for extended PTO and pump shaft service life. Smart Start is available on driveshaft output models to handle high-torque start-up loads. The 272 Series is classified under NMFC code 128520 (Hydraulic PTOs, Pumps, Motors, etc.).Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
