This high-quality Gearbox Blanking Piece provides a direct replacement part for the Arrma 4X2 Boost Mega 550 Brushed Series including the Granite (ARA4102V4, ARA4102SV4), Senton (ARA4103V4, ARA4103SV4) and Vorteks (ARA4105V4, ARA4105SV4) RC vehicles.