Upgrade Special: RTLO18918B Speed Transmission

Eaton Fuller RTLO18918B Transmission

Your truck requires a transmission that is reliable, versatile, efficient, and safe. The Eaton-Fuller RTLO18918B speed transmission is built for the job. Strong, adaptable, and easy to use, this transmission always has the right gear to keep the engine running at the correct RPM, save fuel, help increase engine longevity, and most of all, help deliver the torque needed to get those heavy loads moving. No matter where your journey takes you, there’s a gear for every situation a truck driver might encounter.

RTLO18918B Facts & Features

The RTLO18918B features unbeatable versatility: it can be operated as a 9, 10, 13 or 18 speed transmission, with 19.7 to 1 overall reduction and 14.40 low gear, plus economical performance with 0.73 and 0.86 overdrives for efficient cruise RPMs. Enjoy smoother shifting thanks to patented low-inertia technology: During upshifts, where both the lever and splitter button are moved together, the low-inertia mainshaft is quickly brought to synchronous resulting in fast, easy shifts.

Exclusive output seal design improves seal life and eliminates potential for seal damage during yoke removal. Thanks to design improvements, the RTLO18918B speed transmission also features faster, smoother range and splitter shifts. On select models, an optimized lubrication system provides increased cooling and lubrication for more difficult or harder-working applications.

Other features include:

Unequalled ratio versatility due to close, even steps in both HI and LO range
Enhanced reverse operation safety due to multiple slow reverse ratios
Quieter operation and increased durability due to helical gears in auxiliary section

How the RTLO18918B Works

The Eaton-Fuller 18 speed transmission is laid out in an ‘H’ pattern. The driver uses second, third, fourth, and fifth, then splits up into high range; then, the H pattern shifts again for sixth, seventh, eighth and ninth gear. After reaching ninth gear, split up to overdrive for the top gear. There are plenty of other gears in between, as all main gears have a high range and a low range, so that the driver can split any of the gears, twice more.

It might sound a bit complicated at first, but it really isn’t. A driver may find that the gear being used, may not be quite the right one for where he wants the RPM’s to be. In this case, you can simply split up or down accordingly, matching the RPM’s to the engine’s sweet spot. Drivers who like floating gears (which is never recommended) should love the 18 speed— 12 of the 18 gears available do not require moving the shifter, as they are split gears with a flick of the finger or thumb.

Concerned about the conversion and what else you might need? Typically, you’re looking at 5 things, depending on what you are replacing:

Shortening your drive line (around 3 inches)
Bellhousing, as this is a forced lubed system and needs to accommodate the Halo system
Shift tower

All of the parts mentioned above can be provided by our sister company, Outlaw Customs.

Purchase Your RTLO18918B 18 Speed Transmission

LKQ Heavy Truck can replace your tired, underperforming 10 speed transmission with a NEW Eaton-Fuller RTLO18918B 18 speed transmission, with no upcharge for the core.

LKQ Heavy Truck can frequently buy truck transmissions in bulk and at deep discounts. In-turn, we pass that savings onto our customers. If you need a back-up or simply spend too much time in the driver seat unable to find the right gear, check out the RTLO18918B for a limited time offer (while supplies last). Available shipping from several locations throughout the US, typically 2-3 business days.

Contact us today to learn more.

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