When you get a hi flo oil filter for the aircooled Kats (HF133)You get 2 o rings .
1x 3 bolts = 550, 650 , 750 se & 250 both water and air cooled not really kat ez )models
also 1x 5 bolt = 750 s1 /s2 1000 ,1100.
Now when you get other filters both aftermarket and genuine you don't get any o rings and need to buy seperate.
I have about 50 5 bolt o rings spare because I mainly use 3 bolt ones , but have a few filters without orings , want to swap?
Or does anyone need some?
