Rocket Fuel

Eaton® Fuller Advantage® 10-Speed Automated Transmission.

When you spec the SmartAdvantage Powertrain with an ISX15 engine, you now have the choice between a small-step overdrive or direct drive Eaton Fuller Advantage® 10-speed automated transmission.

Small-Step Overdrive

Small-step technology combines downspeeding in overdrive (10th gear) with efficiency in direct drive (9th gear). A 26% step from 9th to 10th allows the transmission to move quickly and seamlessly between the two upper gears, in response to changing terrain and load demand. Customers benefit from downspeeding (cruising at a lower rpm for better fuel economy) through fully integrated electronic control of the engine and transmission as a complete unit. This will be the optimal choice for about 80% of North American linehaul trucking fleets.

Direct Drive

Direct drive has a 1:1 gear ratio in 10th gear. This reduces friction losses, delivering up to 4% better fuel economy than small-step overdrive transmissions when operating on flat terrain with an average road speed not exceeding 62 mph. It is particularly effective for regional LTL carriers making five or more stops per shift, spending 40 – 80% time at cruise speed and traveling 50,000 – 100,000 miles annually. The SmartAdvantage Powertrain with direct drive has recently been approved for 2.26, 2.28 and 2.39 axle ratios, providing additional downspeeding for enhanced efficiency.

Small-Step Overdrive Direct Drive
Gear Ratio % Step Ratio % Step
10th 0.80 1.00
9th 1.00 26 1.34 34
8th 1.42 42 1.83 37
7th 2.03 43 2.45 34
6th 2.83 39 3.3 34
5th 3.97 40 4.57 42
4th 4.98 26 6.28 34
3rd 7.06 42 8.55 36
2nd 10.12 43 11.52 35
1st 14.11 39 15.42 34
Hi REV 3.43   3.89  
Lo REV 17.12   18.18  
Overall 17.70   15.42  

The Eaton Fuller Advantage® 10-speed transmission optimizes shifting based on grade, vehicle weight, engine torque and throttle position. The result is error-free, guess-proof shifting − making every driver in your fleet as efficient as your best driver.

The Eaton Fuller Advantage transmission makes strategic use of lightweight components to reduce weight and increase payload by 82 lb. Precision Lubrication technology eliminates the oil cooling system, uses 33% less oil than conventional transmissions, while further enhancing fuel economy.

To learn more about features and benefits of the Eaton Fuller Advantage 10-Speed Automated Transmission including the Hill Start Aid, Clutch Abuse Protection, Shuttle Shifting and more, check out this video:


Power Take-Offs

  • SAE standard openings
  • Right side, regular duty, 6-bolt. Bottom, heavy-duty, 8-bolt

PTO Drive Gears

  • Right: 6 bolt; 45-tooth; 6/8 pitch gear.
  • Left: 8 bolt; 47-tooth; 6/8 pitch gear turn at .79 engine speed

Oil Capacity

  • Approx. 16 pints (7.57 liters)

Transmission Controller

  • Current Gen 3

For additional details about the Eaton Fuller Advantage® 10-speed automated transmission, visit Eaton Heavy-Duty Automated Transmissions.

To learn more about the proprietary technology, features and specs of Cummins ISX15 engine including the XPI Fuel System, VGT Turbocharger, the fully integrated aftertreatment system and more, check out