Eaton 18-speed Manual Gearbox Assembly
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Eaton 18-speed Manual Gearbox Assembly

Eaton Fuller 18-speed manual gearbox (Super 18 / RTLO series, e.g., RTLO18918B, RTLO20918, RTLO22918) is a classic heavy-duty twin countershaft compound manual transmission. It has 18 forward gears + 4 reverse gears, combining main gearbox + 2-stage auxiliary box structure with pneumatic splitter/range shift control and low-inertia mainshaft design. It is designed for ultra-heavy haulage, mining trucks, logging vehicles, oversize loads and long-distance highway fleets, providing ultra-wide gear ratio range, synchronized shifting and overdrive fuel efficiency. It fixes common problems such as difficult heavy-load shifting, abnormal gear noise, oil leakage, premature gear wear and chronic vibration damage.
Availability:
Quantity:
  • F0-22E318B

  • Eaton

  • F0-22E318B

Product parameters

Basic Info


    • Model Series: RTLO16918B, RTLO18918B, RTLO20918, RTLO22918 (Super 18 Low-Inertia Series)

    • Brand: Eaton Fuller Roadranger

    • Structure: 18 forward gears + 4 reverse gears, twin countershaft, main/auxiliary compound structure, helical gearing, pneumatic splitter/range shift + manual lever

    • Max Rated Torque: ~1650–2250 lb-ft (2237–3050 N·m)

    • Weight: approx. 325kg

    • Oil Capacity: approx. 13.2L

    • Applicable Vehicles: 6x4 / 8x4 heavy semi-trailer tractors, heavy haul trucks, mining dump trucks, logging trucks, bulk cargo vocational trucks

    • Category: Heavy Truck Drivetrain Parts – Complete 18-Speed Manual Gearbox Assembly

    • Material: Reinforced cast iron housing, high-strength alloy steel helical gears/shafts, synchronizer assemblies, air shift valves, oil seals, bearings



Material & Advantages


  1. Twin countershaft load-sharing design, evenly distributes torque, improves overall rigidity and overload resistance

  2. Low-Inertia mainshaft design reduces shift mass, enabling faster, smoother synchronized shifts and less shift wear

  3. Precision helical fine-pitch gears, quieter operation and better fatigue resistance under continuous heavy vibration

  4. Ultra-wide ratio range + overdrive gears: balances extreme low-speed climbing torque and highway cruising fuel economy

  5. Reinforced heavy cast iron housing, robust for rough roads, off-road mining and severe heavy-duty cycles

  6. PTO mounting options available for auxiliary power equipment, adaptable to specialized vocational vehicles

  7. Standard SAE mounting pattern, compatible with mainstream heavy truck chassis and clutch housings, mature service network



Application


For full transmission overhaul and replacement of heavy haul, mining, logging and long-haul heavy trucks. Confirm clutch housing, input shaft spline and mounting dimensions before installation, check pneumatic shift lines and regulators, fill with specified Eaton heavy-duty transmission oil, test pneumatic shift function and check for leaks before formal operation. Regular oil maintenance is required for severe heavy-duty usage.



Origin & Lead Time

In stock, delivery within 1–3 working days; bulk orders: 4–7 days; sea freight: 10–24 days


MOQ & Packing


MOQ: 1 piece
Warranty: 6 months, not covered for improper programming, water damage, overvoltage and unauthorized circuit modificationPacking: Anti-static bag + shockproof foam + reinforced export carton

About yongliwei

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Gearboxes assembly include brand ZF, Eaton, FAST, Allison, DONGFENG, DC, Benz, volvo, HOWO, WLY etc. Gearboxes parts includegear, synchronizer, PTO, housing, bearings, shaft, top cover, sensors, wireness, repair kits... etc.


Our products have been exported to more than 50 countries and regions such as Korea, Chile, Russia, Kazakhstan, USA, Ecuador, Turkey, Iran, Africa, Latin America, etc., and have been unanimously recognized by customers.


In the future, we will be committed to creating higher-end quality and more intimate service. And a more comfortable customer experience to build Yongliwei company into an auto parts supplier with excellent corporate culture, scientific development concept and continuous innovation ability.

Company information (1)

Shiyan Yongliwei Industry and Trading Co., Ltd. is a modern enterprise integrating design, development, production and sales of gearbox assembly and gearbox parts.


Our company was founded in Hubei province, China, and has been specialized the truck gearboxes in Chinese offline market for 21 years .Our parts are the leader of gearboxes area in the China now.


Our company was set up in the largest truck parts production base in the world –Shiyan city, Hubei, China, to meet the demand for products in the Asia and South American markets, a professional international trade sales team was born in Hubei in 2021.


Shiyan Yongliwei is focusing on creating high quality, high technology and high standard gearboxes and its parts.

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