The Chelsea 272 Series Power Take-Off Assembly, part number 272MAAJP-B5XD or 272MAAJPB5XD, is a 6-bolt hot shift PTO designed for medium-duty work cycles. It features a 1-1/4" round output shaft with a 5/16" key and supports pneumatic (air) or PowerShift pneumatic/hydraulic engagement. Continuous torque capacity reaches 300 lb-ft (407 Nm), with intermittent ratings in the 201-300 lb-ft (401-500 Nm) range. Output power runs 56+ HP (41-50 kW); at 1,000 RPM the shaft delivers 57 HP (43 kW). The 272 Series consolidates earlier Chelsea medium-duty PTO lines and fits transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM platforms. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting for broad transmission compatibility including Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM
1-1/4" round output shaft with 5/16" key
Pneumatic (air shift) or PowerShift pneumatic/hydraulic engagement
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent range 201-300 lb-ft (401-500 Nm)
Shaft output: 57 HP (43 kW) at 1,000 RPM
Integral air control valve; rotatable flanges for flexible installation
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 (Air Shift) or PowerShift (Pneumatic/Hydraulic)
- Shaft Power at 500 RPM: 29 HP (21 kW)
- Shaft Power at 1,000 RPM: 57 HP (43 kW)
- Compatible Transmissions: 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.
