The Chelsea 272 Series Power Take-Off Assembly, part number 272MAAJP-D3XD or 272MAAJPD3XD, is a 6-bolt hot-shift PTO designed for medium-duty applications including towing and recovery, aerial work, construction equipment, and water trucks. It features a 1-1/4" round output shaft with a 5/16" key and supports both pneumatic and PowerShift (pneumatic/hydraulic) engagement. The 272 Series delivers intermittent torque in the 201-300 lb-ft range and a continuous torque rating up to 300 lb-ft (verify actual rating on the application page for your specific installation). Output power is rated at 56+ HP, with shaft power of 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 transmission and application.
Features
6-bolt mounting for medium-duty hot-shift applications
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
1-1/4" round output shaft with 5/16" key
Intermittent torque rating: 201-300 lb-ft (401-500 Nm); continuous torque up to 300 lb-ft (407 Nm) - check application pages for actual rating
Output power: 56+ HP; 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: Up to 300 lb-ft / 407 Nm (check application pages for actual torque rating)
- 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 or PowerShift (Pneumatic/Hydraulic)
- Compatible Transmissions: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
