OEM
ARRMA · ARA311031
HD Input Gear 13T
OEM replacement
V3 diagram specifies it; ARRMA requires use with ARA310872 or ARA310956. Source also lists: Granite 3S; Senton 3S; Big Rock 3S.
Important note
Matched 1.35-module part. Supporting parts: ARA310872 or ARA310956.
Confidence: High
Verified Sep 28, 2026
Last seen: $9.99
Price and availability may have changed.