Specifications

The E326 Gear-Countershaft is a critical transmission component designed for heavy-duty manual truck transmissions. This countershaft provides precise alignment and torque transfer between input and output gears, ensuring smooth shifting and reliable operation. Manufactured from high-strength, heat-treated steel, the E326 withstands extreme loads, vibration, and wear, extending transmission life. Ideal for Eaton Fuller 9, 10, and 13-speed transmissions, it is perfect for fleets, vocational trucks, and long-haul applications where consistent performance, durability, and precise gear engagement are essential.

Compatibility

Freightliner Cascadia — 2008–2023

Freightliner Columbia — 2001–2010

Kenworth T800 — 1995–2023

Kenworth W900 — 1995–2023

Peterbilt 379 — 1987–2007

Peterbilt 389 — 2008–2023

International 9400i — 1998–2008

Volvo VNL Series — 2004–2023

Alternative Part Numbers

  • Eaton Fuller E326
  • Fuller E326
  • Meritor E326
  • Spicer E326
  • Tremec E326

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