BQLZR Silver 0.51" Model A580038 Metal Motor Gear for WL Toys A959 A969 A979 k929 RC 1:18 Car Made of Metal,high hardness it is replacement part for WL Toys A959 A969 A979 k929 RC 1:18 Car Model:A580038 . Suitable shaft diameter: Hard anodized on the gear surface