272ACKUP-G5XD Chelsea PTO Assembly

The Chelsea 272ACKUP-G5XD or 272ACKUPG5XD is a 272 Series hot shift power take-off assembly built for medium-duty mobile equipment applications. This 6-bolt unit mounts across a wide range of transmissions including Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM. It shifts via pneumatic or PowerShift (pneumatic/hydraulic) actuation and comes with an integral air control valve. The 1-1/4" round output shaft uses a 5/16" key. The 272 Series carries a continuous torque rating of 300 lb-ft (407 Nm) and an intermittent torque rating of 201-300 lb-ft (401-500 Nm); check application-specific pages for actual de-rated torque figures. Shaft power output reaches 57 HP (43 kW) at 1,000 RPM. Common applications include towing and recovery, aerial work, construction equipment, and water trucks. Call us to confirm proper fit for your application.

Features

6-bolt mounting, compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
Pneumatic or PowerShift (pneumatic/hydraulic) shift with integral air control valve
1-1/4" round output shaft with 5/16" key
Continuous torque rating: 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
Suited for towing and recovery, aerial, construction equipment, and water truck applications

Tech Specs

• Intermittent Torque: 201-300 lb-ft (401-500 Nm)
• Continuous Torque: 300 lb-ft (407 Nm) - check application pages for actual de-rated 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 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 others

Additional Information

Parts manual and diagrams: Chelsea 272 Series PTO parts list with prices