The Chelsea 272GBHVP-B3RB or 272GBHVPB3RB is a 272 Series hot-shift power take-off assembly built on a 6-bolt mounting face. Output is a 1-1/4" round shaft with a 5/16" key. The 272 Series supports continuous torque up to 300 lb-ft (407 Nm) and intermittent torque in the 201-300 lb-ft (401-500 Nm) range. Shaft power output reaches 57 HP at 1,000 RPM. This unit shifts via pneumatic (air) or PowerShift pneumatic/hydraulic operation and includes an integral air control valve. Compatible transmissions span a wide range including Allison, Eaton/Fuller, Volvo/Mack, Ford, Aisin, and RAM applications. The 272 Series is applied in aerial, construction, towing and recovery, and water truck work. Call us to confirm proper fit for your transmission.
Features
6-bolt mounting configuration
1-1/4" round output shaft with 5/16" key
Pneumatic (air) shift and PowerShift (pneumatic/hydraulic) options
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Shaft power: 29 HP at 500 RPM, 57 HP at 1,000 RPM
Compatible with Allison, Eaton/Fuller, Volvo/Mack, Ford, Aisin, and RAM transmissions
Integral air control valve included
Tech Specs
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Shift Type: Pneumatic (Air) or PowerShift (Pneumatic/Hydraulic)
- Continuous Torque: 300 lb-ft / 407 Nm (check application pages for actual torque ratings)
- Intermittent Torque: 201-300 lb-ft / 401-500 Nm
- Output Power: 56+ HP / 41-50 kW
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Ford, Aisin, RAM, and other applications
- Dimensions (H x W x L): 15.75" x 12.5" x 14"
Additional Information
The Chelsea 272 Series consolidates several earlier Chelsea medium-duty hot-shift PTO families into a single versatile platform. The 272 Series offers nine speed ratios and 18 shift options, with rotatable flanges for installation flexibility. Direct-mount configurations include an optional Wet-Spline design for extended PTO and pump shaft service life. Driveshaft output versions are available with the Smart-Start feature, which manages high-torque start-up conditions. Common markets include towing and recovery, aerial lift, construction equipment, and water trucks.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
