GY6 oil cooler
If you have added a 171cc big bore kit or larger to your GY6 engine, this drain plug mounted oil cooler is a must. Add a high volume oil pump with this CLICK HERE to complete the kit. The GY6 engine is a air cooled engine. When oil is in a hot engine it really has no where to go to cool down. The oil radiator cools oil quickly. It is mounted away from the hot engine allowing it to cool much better. The cooler the engine the better.