The Chelsea 272ZSJWX-13RK is a 6-Bolt hot shift Power Take-Off from the Chelsea 272 Series, a medium-duty PTO line consolidating the 230, 231, 236, 238, 270, and 271 Series into a single platform. The 272 Series supports intermittent torque ratings from 201 to 300 lb-ft (401-500 Nm) and delivers 56+ HP of output power. Shift options include pneumatic (air) or hydraulic, with an integral air control valve. Output shaft configurations include round shaft with 1-1/4 in. key and round shaft with 1 in. key. The series offers nine speed ratios, 18 shift configurations, and is suited for aerial, construction, towing and recovery, and water truck applications. A genuine Chelsea part, sold by Pro Gear and Transmission.
Features
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
Integral air control valve included
Round shaft output options: 1 in. with 1/4 in. key or 1-1/4 in. with 5/16 in. key
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic (Air) 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)
- Speed Ratios Available: 9
- Shift Configurations Available: 18
- Lubricant Code X: No Pressure Lube; Code P: Pressure Lube; Code W: Wet Spline
Additional Information
The Chelsea 272 Series consolidates multiple predecessor PTO lines, including the 230, 231, 236, 238, 270, and 271 Series, into a single medium-duty hot shift platform. The series supports both direct mount and driveshaft output configurations. Direct mount variants offer optional Wet-Spline technology for extended PTO and pump shaft service life. Driveshaft output variants are available with Smart-Start for high-torque start-up conditions. Documented applications for the 272 Series include aerial equipment, construction equipment, towing and recovery, and water trucks. Also referenced as SP272ZSJWX-13RK.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
