The Chelsea 272 Series Power Take-Off Assembly, part number 272XAAJP-G3XD or 272XAAJPG3XD, is a 6-bolt hot shift PTO rated for continuous torque up to 300 lb-ft. It uses a pneumatic or hydraulic (PowerShift) shift mechanism and mounts with a 6-bolt pattern compatible with transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM applications. The 1-1/4" round output shaft accepts a 5/16" key. Output power exceeds 56 HP, with shaft power measured at 29 HP at 500 RPM and 57 HP at 1,000 RPM. The 272 Series consolidates several earlier Chelsea medium-duty PTO lines into one design and carries an integral air control valve. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting pattern fits Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
Pneumatic or hydraulic (PowerShift) hot shift operation with integral air control valve
1-1/4" round output shaft with 5/16" key
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Shaft power: 29 HP at 500 RPM, 57 HP at 1,000 RPM
Smart Start option available for high-torque start-up conditions; rotatable flanges for flexible installation
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
- Output Power: 56+ HP (41-50 kW)
- Shift Type: Pneumatic or Hydraulic (PowerShift)
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other applications
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
