HPI RACING 76970 Threaded Pinion Gear R40/purple 20Tx12mm (1M/1ST Gear/2Speed)

HPI RACING 76962 Threaded Pinion Gear R40/purple 17Tx12mm (1M/1ST Gear/2Speed)

HPI RACING 76969 Threaded Pinion Gear R40/purple 19Tx12mm (1M/1ST Gear/2Speed)

RC HPI R40 Nitro 2 Speed 19 Tooth 16 mm Pinion Gear Aluminum Purple (1) 76969

HPI RACING 76960 Threaded Pinion Gear 15T X 12mm For R40 RC Spare Parts

Apex RC Products 15 & 16T Mod 1 M1 5mm 1/8 Scale Pinion Gear Set #9732

RC HPI R40 Nitro 2 Speed 18 Tooth Pinion Gear Aluminum Gold (1) 76968

0.7mm 15T Steel Pinion w/ 2.3mm Bore - 1/18 WLToys A929 A949 124019 124018 (Drop