The Chelsea PTO Assembly, part number 272MBAJP-G5XR or 272MBAJPG5XR, is a 6-bolt mounted power take-off unit with a 1-1/4" round output shaft keyed with a 5/16" key. It shifts pneumatically via PowerShift (pneumatic/hydraulic) and delivers up to 300 lb-ft (407 Nm) continuous torque, with intermittent ratings in the 201-300 lb-ft (401-500 Nm) range. Output power runs 56+ HP at the rated speed range, with shaft power measuring 29 HP at 500 RPM and 57 HP at 1,000 RPM. Compatible transmission families include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM applications. Call us to confirm proper fit for your specific transmission and truck configuration.
Features
6-bolt mounting configuration
1-1/4" round output shaft with 5/16" key
Pneumatic and PowerShift (pneumatic/hydraulic) shift types
Continuous torque rating: 300 lb-ft / 407 Nm
Intermittent torque range: 201-300 lb-ft / 401-500 Nm
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
Tech Specs
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Shift Type: Pneumatic / PowerShift (Pneumatic/Hydraulic)
- Continuous Torque: 300 lb-ft / 407 Nm (verify on application pages for actual rating)
- Intermittent Torque: 201-300 lb-ft / 401-500 Nm
- 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
- 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.
