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Eaton 18-Speed Transmission for Sale

(2 reviews)
  • Type: Heavy-Duty Truck Transmission
  • Model: Eaton 18-Speed Transmission
  • Maker: Eaton Corporation
  • Speeds: 18 speeds (6 low gears and 3 high gears, with each gear position being split)
  • Condition: Used


99.5% Positive feedback
  • Consistently receives highest buyers ratings
  • Ships items quickly
  • Has earned a track record of excellent service


Discover the Power of Eaton Fuller RT-18 Manual Transmissions

The Eaton 18-speed transmission is known as a favorite in heavy-duty trucks; where flexibility and endurance are key characteristics. It has many gears, which allow the car to easily switch from delivering low-speed power” or torque to smoothly cruising at high speeds. This Eaton 18-speed Transmission for Sale at our store has a manual transmission and it is rather challenging to change gears since one needs to use clutch which determines the performance and durability of the car. This makes the Eaton 18-speed transmission the most preferred due to its reliability in handling the power delivered to it by the industries.

Why Choose an Eaton 18-Speed Transmission?

  • Wide Range of Gear Ratios: Allows for versatile performance across various driving conditions, from low-speed torque to high-speed cruising.
  • Splitter and Range Shifts: Enables precise gear selection with splitter and range shifts, optimizing power delivery and efficiency.
  • Manual Operation: Requires skilled clutch control for smooth gear transitions, enhancing driver control and adaptability.
  • Durability: Built to withstand heavy loads and rugged terrain, ensuring long-term reliability and reduced maintenance costs.
  • Enhanced Fuel Efficiency: Through its versatile gear ratios and efficient power delivery, the transmission helps improve fuel economy by allowing engines to operate at their most efficient RPM ranges.
  • Enhanced Fuel Efficiency: Through its versatile gear ratios and efficient power delivery, the transmission helps improve fuel economy by allowing engines to operate at their most efficient RPM ranges.

Innovative and patented design

You might want to get your hands on this Eaton 18-speed transmission not just because you need one but also because of the several innovative and patented design elements that contribute to its performance and reliability:

  • Precision Gear Design: The transmission uses state-of-the-art gear tooth configuration and technology to guarantee seamless engagement and to further the life and acuteness of the equipment.
  • Splitter Mechanism: This system of splitters entails that one gear is split in two by a patented concept from Eaton, thereby creating a double number of gear ratios. This feature aspires to improve drive conditions in numerous and variable driving scenarios.
  • Shift Quality and Control: Shift control technologies include pending position control, clutch control command, and variable shift control, which enhance shift control through synchronization and minimizing shift force. This not only improves driver comfort during their long journeys, but it is also contributing to extending the durability of different components of the transmission.
  • Efficiency Enhancements: Changes in the design aspects that include; better bearing arrangements and reduced internal slip in the operating machinery lead to better fuel efficiency and cheaper operating costs in the long run.
  • Durability Enhancements: A nod to the transmission design is the use of significant and well-reinforced material addition in vulnerable areas so the unit can handle heavier loads and more extreme conditions.

Eaton 18-Speed Transmission Fits


  • Freightliner: Models such as the Cascadia, Coronado, and Classic XL.
  • Kenworth: Trucks like the T680, T880, and W990.
  • Peterbilt: Includes models such as the 579, 389, and 567.
  • Volvo: Models like the VNL series.
  • Mack: Trucks such as the Anthem and Pinnacle.
  • International: Includes models like the LT Series and HX Series.


  • Cummins ISX15
  • Cummins X15
  • Cummins ISM
  • Detroit Diesel DD13
  • Detroit Diesel DD15
  • Detroit Diesel DD16
  • PACCAR MX-13
  • PACCAR MX-11
  • Caterpillar C15 (older models)
  • Caterpillar C16 (older models)
  • Volvo D13
  • Volvo D16
  • Mack MP7
  • Mack MP8
  • Mack MP10

Quality Assurance

When you purchase a used Eaton 18-speed transmission from us, you can rest assured that you’re getting a quality product. Our process includes:

  • Thorough inspection
  • Rigorous testing procedures

Why Choose Our Used Eaton 18-Speed Transmissions?

  • Thoroughly inspected
  • Competitive Pricing
  • Expert technical support

Additional information

Torque Rating

1,450 lb-ft to over 2,050 lb-ft

Fluid Capacity

36 to 40 quarts

Overall Length

47 to 50 inches

Bellhousing to Tailshaft Length

38 to 42 inches


700 to 800 pounds

Gear Ratios

Low Range Gears (Deep Reduction):
1st gear: 14.66
2nd gear: 12.21
3rd gear: 10.12
High Range Gears:
4th gear: 8.41
5th gear: 7.02
6th gear: 5.86
Overdrive Gears:
7th gear: 4.89
8th gear: 4.10
9th gear: 3.42
Reverse Gears:
Low range reverse: 16.55
High range reverse: 13.87


2000 Eaton Fuller 18 Speed Transmission

2 reviews for Eaton 18-Speed Transmission for Sale

  1. Mike Anderson

    I bought the Eaton 18-speed transmission online for my Freightliner Cascadia. The transaction went smoothly, and the part arrived on schedule. It matched the description perfectly, and since installing it, I’ve noticed a significant improvement in performance and gear transitions. Very pleased with this purchase

  2. David Thompson

    Managing a fleet requires reliable parts sourcing. I ordered the Eaton 18-speed transmission for our Volvo trucks and received it promptly and well-packaged. Installation was straightforward, and the transmission has been performing exceptionally well, even under heavy loads. Highly recommend this supplier for their quality and service.

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Product Q&A

Availability of Eaton 18-Speed Transmission for Sale?

Here at Find Auto Parts Online, you will find the best quality Eaton 18-speed Transmission for Sale at a very reasonable price.

What is the price of the Eaton 18-speed Transmission for Sale?

Here at Find Auto Parts Online, you will find the best quality Eaton 18-speed Transmission for Sale at a very reasonable price. Please call or Contact us here.

What maintenance is required for the Eaton 18-speed transmission?

Regular maintenance includes checking and changing transmission fluid, inspecting for leaks, and ensuring proper clutch operation. Periodic inspections are crucial to maintaining optimal performance and longevity.

Is the Eaton 18-speed transmission suitable for off-road use?

Yes, the transmission is designed to handle rugged terrain and off-road conditions, providing traction control and reliability in challenging environments.

Does the Eaton 18-speed transmission improve fuel efficiency?

When operated correctly, the transmission's gear ratios and overdrive options can contribute to improved fuel efficiency by allowing the engine to operate at lower RPMs during cruising.

Can the Eaton 18-speed transmission be repaired if damaged?

Yes, authorized service centers can repair and rebuild the transmission if components are damaged or worn. Proper maintenance and timely repairs can extend the transmission's lifespan.

How does the Eaton 18-speed transmission compare to other transmissions in terms of performance and reliability?

The Eaton 18-speed transmission is well-regarded for its robust construction, versatility in gear selection, and durability under heavy-duty conditions. It competes favorably with other transmissions in the heavy-duty trucking industry.
Eaton 18-Speed Transmission for Sale
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