Used for years in vocational applications around the world, the Cat CX31 Automatic Transmission has a proven track record for quality and reliability that helps maximize uptime—delivering rugged durability, fuel economy and smooth shifting for optimum power and efficiency.

Watch the video to see how the Cat Truck can help you shift into work mode.

NOTE: Other transmission options include the Manual and Ultrashift® Plus Vocational Transmissions built by Eaton.



Increase Productivity

Full-power shifts provide quick acceleration and eliminate the need for constant shifting in traffic, improving efficiency to keep trucks, ground crews and other equipment working productively.

Improve Fuel Efficiency

Ideal speed and torque combinations boost fuel economy—narrowing the gap between your best and worst fuel mileage drivers.

Operate More Safely

There’s no need for drivers to take their hands off the wheel, so they can focus on their surroundings.

Recruit & Retain Drivers

It’s easier to find drivers who can handle a truck that does the shifting for them—and they’ll be less fatigued at the end of the work day.

Feature Hotspots

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Features and Benefits


Features and Benefits

  • Automatic shifting: Simplifies finding, training & retaining productive drivers
  • Performance-match with CT Series Engines: Provides faster, smoother & more consistent shift quality, plus increased powertrain durability, performance & operating efficiency
  • Electronic Control Module (ECM): Regulates gear shifts to optimize engine performance & reduce wear
  • Two side PTO locations & Cat exclusive rear PTO: Improves packaging, performance & serviceability
  • Six forward speeds & one reverse speed: Always chooses the right gear for peak performance & fuel efficiency
  • Common diagnostic tools: Lets your Cat Dealer service the entire truck at one facility, saving time


Shifting Into Work Mode

Find out how the CT660's CX31 Automatic Transmission gives drivers more control, improving safety and performance on the job.

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