The Chelsea 272 Series Power Take-Off Assembly, part number 272MBAJP-G5RB or 272MBAJPG5RB, is a 6-bolt hot-shift PTO designed for medium-duty mobile equipment applications. It features a 1-1/4" round output shaft with a 5/16" key and supports both pneumatic (air shift) and PowerShift (pneumatic/hydraulic) engagement. The 272 Series carries a continuous torque rating up to 300 lb-ft (407 Nm) and intermittent torque in the 201-300 lb-ft range, with output power exceeding 56 HP. Shaft power at 1,000 RPM reaches 57 HP. Compatible transmissions include 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 configuration for direct transmission installation
1-1/4" round output shaft with 5/16" key
Pneumatic (air shift) and PowerShift (pneumatic/hydraulic) shift options
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Output power exceeding 56 HP (41-50 kW); shaft power reaches 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
- 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), PowerShift (Pneumatic/Hydraulic)
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, Other
- Continuous Torque: 300 lb-ft, 407 Nm (check application pages for actual torque ratings)
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
