The Chelsea 272 Series Power Take-Off Assembly, part number 272GBHVP-B5BD or 272GBHVPB5BD, is a 6-bolt hot-shift PTO built for medium-duty applications across towing and recovery, aerial, construction equipment, and water truck operations. It features a 1-1/4" round output shaft with a 5/16" key, pneumatic (air) shift with PowerShift capability, and a continuous torque rating of 300 lb-ft (407 Nm). Intermittent torque is rated at 201-300 lb-ft (401-500 Nm). At 1,000 RPM, shaft power reaches 57 HP (43 kW). The 272 Series carries an integral air control valve and rotatable flanges. Compatible transmission families include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM platforms. Call us to confirm proper fit for your application.
Features
6-bolt mounting configuration for medium-duty transmission applications
1-1/4" round output shaft with 5/16" key
Pneumatic (air) shift with PowerShift (pneumatic/hydraulic) capability
Continuous torque rating: 300 lb-ft (407 Nm); intermittent: 201-300 lb-ft (401-500 Nm)
Integral air control valve and rotatable flanges included
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
Tech Specs
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: 300 lb-ft (407 Nm) - Check application pages for actual torque ratings
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Output Power: 56+ HP (41-50 kW)
- Shift Type: Pneumatic / PowerShift (Pneumatic/Hydraulic)
- Shaft Power at 500 RPM: 29 HP (21 kW); at 1,000 RPM: 57 HP (43 kW)
- Compatible Transmissions: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM
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 options. Direct-mount configurations include an optional Wet-Spline design for extended PTO and pump shaft service life. Driveshaft output configurations include the Smart-Start feature engineered for high-torque start-up conditions. Typical market applications include aerial work platforms, construction equipment, towing and recovery, and water trucks.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
