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Traxxas Original Equipment Parts

Traxxas TRA3996 Idler Gears, 20T: E-Maxx

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These are 20 Tooth Idler Gears from Traxxas.

This is a Stock part for:

1/10 E-Maxx EVX2 (3903)
1/10 E-Maxx Mamba (3908)

  • Plastic construction
  • 20 Teeth
  • Located in the Gearbox

Two (2) Idler Gears


Outer Diameter: 20mm (.788")
Inner Diameter: 11.3mm (.448")
Height: 9mm (.354")
Teeth: 20

If you need silicone grease, order Traxxas 1647 from our store, HopMeUp!