The Chelsea 272NAHVP-D5XV or 272NAHVPD5XV is a 272 Series hot shift power take-off assembly with a 6-bolt mounting pattern and a 1-1/4" round output shaft with a 5/16" key. Shift is pneumatic with PowerShift (pneumatic/hydraulic) operation, and the unit includes an integral air control valve. The 272 Series consolidates several earlier Chelsea medium-duty PTO lines into one platform, supporting continuous torque up to 300 lb-ft and intermittent torque in the 201-300 lb-ft range. Output power reaches 56+ HP, with shaft power rated at 57 HP at 1,000 RPM. Compatible transmissions span Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM applications. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting pattern for broad transmission compatibility
1-1/4" round output shaft with 5/16" key
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Shaft power output: 57 HP at 1,000 RPM
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)
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Shift Type: Pneumatic; PowerShift (pneumatic/hydraulic)
- Compatible Transmissions: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other applications
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 Series medium-duty hot shift PTO lines into a single platform. The series offers nine speed ratios and 18 shift configurations. Direct mount outputs include an optional wet-spline design for extended PTO and pump shaft service life. Driveshaft output configurations include the Smart Start option, which handles high-torque start-up conditions. Rotatable flanges allow flexible installation orientation. Typical markets for the 272 Series include towing and recovery, aerial lift, construction equipment, and water truck applications.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
