ARRMA Pinion Gear 21T 0.5 MOD CNC 2.3mm Bore

Specifications

Tooth Count

21T

Supplied items

(1) 21T Mod 0.5 Pinion Gear; (1) M3 x 4mm Set Screw

Published gear pitch designation

0.5 MOD

Published bore

2.3mm

Nominal motor shaft fit

2.3 mm

Published material

Steel

Packages

Vehicle applications

These applications were researched for the named editions. Parts-list inclusion does not establish universal fitment. Package quantity and vehicle quantity are separate.

• Arrma Freedom Flyer Grom MEGA 380ARA2130
  Option listingView listing
• Arrma Mojave GROM RTA KitARA2104K

  Current manufacturer/distributor listing relationship only. Stock installation, exact aftermarket fitment and interchangeability were not independently assessed.

  Option listingView listing
• Losi NASCAR Brad Keselowski No. 6 2026 Castrol Ford MustangLOS1122606

  The exact vehicle-linked manual labels this row as replacement or optional. Listing role does not prove factory installation.

  Option listingView listing
• Losi NASCAR Jimmie Johnson No. 48 Lowes Chevrolet Monte CarloLOS1120248

  The exact vehicle-linked manual labels this row as replacement or optional. Listing role does not prove factory installation.

  Option listingView listing
• Losi NASCAR Justin Allgaier No. 40 2026 Traveller Whiskey Chevrolet ZL1LOS1122640

  The exact vehicle-linked manual labels this row as replacement or optional. Listing role does not prove factory installation.

  Option listingView listing
• Losi NASCAR Ricky Bobby No. 26 Wonder Bread Chevrolet ZL1LOSF1122626

  The exact vehicle-linked manual labels this row as replacement or optional. Listing role does not prove factory installation.

  Option listingView listing
• Losi NASCAR Zane Smith No. 38 2026 Losi Ford MustangLOS1122638

  The exact vehicle-linked manual labels this row as replacement or optional. Listing role does not prove factory installation.

  Option listingView listing

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Replacements & requirements

No replacement or additional-part relationship has been verified.