The Chelsea 272MDAJP-B5RK or 272MDAJPB5RK 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 options include pneumatic (air) and PowerShift pneumatic/hydraulic, with an integral air control valve included. 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; check application pages for actual de-rated torque ratings. Output power reaches 56+ HP (41-50 kW), with shaft power of 29 HP at 500 RPM or 57 HP at 1,000 RPM. The 272 Series consolidates several earlier Chelsea medium-duty PTO lines and is used across towing and recovery, aerial, construction, and water truck applications. Call us to confirm proper fit for your transmission and chassis.
Features
6-bolt mounting pattern fits a wide range of transmission applications including Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM
1-1/4" round output shaft with 5/16" key
Pneumatic (air) shift and PowerShift (pneumatic/hydraulic) shift options
Integral air control valve included
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Shaft power: 29 HP (21 kW) at 500 RPM, 57 HP (43 kW) at 1,000 RPM
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 Ratings
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Shift Type: Pneumatic (Air Shift), PowerShift (Pneumatic/Hydraulic)
- Output Power: 56+ HP (41-50 kW)
- Shaft Power at 500 RPM: 29 HP (21 kW)
- Shaft Power at 1,000 RPM: 57 HP (43 kW)
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other manufacturers
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
