In this category you will find all the oil filters we have for your YAMAHA 4 stroke like the YZ, TTR, WR and many others. In this category you will find all the quality oil filters we can find on the market to guarantee a good filtration of your oil and to prolong the life of your engine. It is very important to choose quality oil filters for your motocross, enduro and trial because some dubious brands do not filter anything or even disintegrate and end up in the engine. We recommend original oil filters but also competition oil filters for optimum filtration. For increased reliability it is preferable to change your filter at each oil change or every 2 oil changes of your machine.