The Chelsea 272 Series PTO assembly, part number 272XBAJX-P3RK or 272XBAJXP3RK, is a 6-bolt hot shift power take-off built for medium-duty vocational applications. The 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 Series into a single platform, offering 9 speed ratios and 18 shift options. This unit supports both pneumatic and hydraulic shift configurations and includes an integral air control valve. The series is rated for intermittent torque from 201 to 300 lb-ft and delivers 56-plus HP output. Output shaft options across the series include round shaft with 1-inch/1-4-inch key and round shaft with 1-1/4-inch/5/16-inch key. Common applications include aerial, towing and recovery, construction equipment, and water trucks. Call us to confirm proper fit for your transmission and application.
Features
Chelsea 272 Series 6-bolt hot shift PTO assembly
Supports both pneumatic and hydraulic shift configurations
Integral air control valve included
Intermittent torque rating: 201 to 300 lb-ft (up to 300 lb-ft)
Output power: 56-plus HP
9 speed ratios and 18 shift options available across the series
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)
- Lubricant Code: P = Pressure Lube
- Speed Ratios Available: 9
- Shift Options Available: 18
Additional Information
The Chelsea 272 Series replaces and consolidates the earlier 230, 231, 236, 238, 270, and 271 Series medium-duty hot shift PTOs into one platform. The series is used across aerial, construction equipment, towing and recovery, water truck, defense, and material handling applications. Direct mount options include optional Wet-Spline technology for extended PTO and pump shaft service life. Driveshaft output configurations are available with the Smart-Start option, designed for high-torque start-up conditions. Flanges are rotatable for flexible installation. Also referenced as SP272XBAJX-P3RK in some catalog listings.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
