Steel Mod1 Pinion Gear (w/5mm Bore) (14T) by Arrma

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Frederick, MD

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These Arrma Pinion Gears are MOD1 and are offered in a variety of tooth counts. Each package includes one Steel pinion gear and one set screw.


  • Strong and durable steel for long-lasting performance in extreme RC conditions
  • Precision manufactured tooth profile for smooth operation
  • Precision manufactured double set screw holes for the fitment of set screws either side of the motor shaft for extra secure fitting
  • For fitment to 5mm motor shaft


This product was added to our catalog on December 1, 2014.

Michael Babnick
Friday, Oct 6 2017 (5 months ago)
Arrma Steel Mod1 Pinion Gear (w/5mm Bore)
These break easily on the Outcast. Have gone through 3 and have 2 more on backorder. I even set the ESC to a softer start and I broke one. May consider trying the 13 tooth gear and hope it has better material and design strength.)