The Chelsea 272 Series Power Take-Off Assembly, part number 272MDAJP-G5RK or 272MDAJPG5RK, is a 6-bolt hot-shift PTO designed for medium-duty applications in towing and recovery, aerial, construction, and water truck markets. It features a 1-1/4" round output shaft with a 5/16" key and supports both pneumatic and PowerShift (pneumatic/hydraulic) engagement. Intermittent torque ratings fall in the 201-300 lb-ft range, with continuous torque capability up to 300 lb-ft. Output power exceeds 56 HP, with shaft power rated at 29 HP at 500 RPM and 57 HP at 1,000 RPM. Compatible transmissions 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 hot-shift installations
1-1/4" round output shaft with 5/16" key
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
Intermittent torque: 201-300 lb-ft; continuous torque up to 300 lb-ft
Shaft power: 29 HP at 500 RPM, 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)
- Shift Type: Pneumatic, PowerShift (Pneumatic/Hydraulic)
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Compatible Transmissions: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other select platforms
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
