This heat sink didn't work on my application, due to where the motor mounts to the gear housing, it doesn't allow ample room to fit the heat syncs. So I couldn't install these. Please check your application setup before purchasing.

I am please, these worked great for my application

So far they have worked well. My son drives his power wheel a lot and for long periods. I had a 550 motor over heat and I had to replace it. The heat sinks have helped keep the motors cooler

Well made. No instructions. Would have been nice to show a picture installed so I didnt have to R&R it for clearance.

Took a bit to get the correct ones but I understand mistakes happen. Correct ones fit perfect. Hopefully it extends my son's motor life on his truck