ValueRC 36mm Alu RC Car Double Motor Cooling Fan with Heatsink 30*30MM （The fans will work when temperature is higher than 40'C) for 540 550 3650 3660 and more dia 36mm Motor DTEF03003A:Silver B:Blue C: Red D:Purple E:Black

Aluminum 7075 Hard Coated M0.6 Motor Pinions Gear - Ti Gold for 3.175 Shaft M3 Screw Hole with set screw DTG01C13T:￠3.175*￠9*9 DTG01C14T:￠3.175*￠9.6*9 DTG01C15T:￠3.175*￠10.2*9 DTG01C16T:￠3.175*￠10.8*9 DTG01C17T:￠3.175*￠11.4*9 DTG01C18T:￠3.175*￠12*9 DTG01C19T:￠3.175*￠12.6*9 DTG01C20T:￠3.175*￠13.2*9 DTG01C21T:￠3.175*￠13.8*9 DTG01C22T:￠3.175*￠14.4*9 DTG01C23T:￠3.175*￠15*9 DTG01C24T:￠3.175*￠15.6*9 DTG01C25T:￠3.175*￠16.2*9 DTG01C26T:￠3.175*￠16.8*9 DTG01C27T:￠3.175*￠17.4*9 DTG01C28T:￠3.175*￠18*9 DTG01C29T:￠3.175*￠18.6*9 DTG01C30T:￠3.175*￠19.2*9 DTG01C31T:￠3.175*￠19.8*9 DTG01C32T:￠3.175*￠20.4*9 DTG01C33T:￠3.175*￠21*9 (mm) for 1/10 RC Car