PACCAR 12-Speed Automated Transmission


PACCAR’s 12-speed automated transmission was designed from the ground up to work seamlessly with PACCAR MX engines and axles. The purpose built automated transmission represents a major advancement in powertrain performance, productivity, efficiency, driveablilty and return on investment. 

PACCAR 12-Speed Automated Transmission

12 Forward / 2 Reverse

Lower Cruise Speed Limit
1,100 RPM

Torque Capacity
1,850 lb.-ft.

Oil Capacity
16 Pints

System Weight
(Transmission, Clutch & Oil)
657 lbs.

Maximum Operating Weight
110,000 lbs.

PTO Maximum Capacity
8 Bolt, Bottom Mount,
95 HP

Fluid Pressure Sensor
Protection from Gear Burnup

Warranty Coverage
5 Years / 750,000 Miles

3 Years / 350,000 Miles

Maintenance Intervals
750,000 Mile Oil Change

Maintenance Free

Learn More

Spec Sheet

PACCAR 12-Speed Automated Transmission Highlights

  • Lightest 1,850 lb.-ft. torque capable heavy-duty automated transmission on the market
  • Deepest reverse ratio among linehaul transmissions for slow speed maneuvering
  • Longest transmission oil change interval for linehaul applications (750,000 miles)
  • Requires half as much oil – 16 pints – as comparable automated transmissions
  • Smooth and intuitive shift strategies that improve fuel economy and driver comfort
  • Internal electrical system routing minimizes exposure to corrosion to wires and connectors
  • Industry exclusive Fluid Pressure Sensor notifies the driver of low oil to prevent gear burn-up
  • Cooler-less precision lubrication system


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