I thought I will post some photos of an after market filter.
It is Mahle brand , probabley you can find it also in Usa .
what I find interesting is that the filter is made in 2 sections , a corset filtering part ,and a finer .
But very important is also a small valve , sorry in the pic.it is not so evident , but it is there .
that will hold a certain amount of oil for the cold start of the motor .
last but not least , I am happy that I haven't found any debris of my motor in the filter .
black due to the 10.000 km on the filter , but spotless of any debris , on a 350K HDT motor .
It is Mahle brand , probabley you can find it also in Usa .
what I find interesting is that the filter is made in 2 sections , a corset filtering part ,and a finer .
But very important is also a small valve , sorry in the pic.it is not so evident , but it is there .
that will hold a certain amount of oil for the cold start of the motor .
last but not least , I am happy that I haven't found any debris of my motor in the filter .
black due to the 10.000 km on the filter , but spotless of any debris , on a 350K HDT motor .