Heck, after reading the link that Glider posted, I'm going to try and find myself a Purolator(cross ref). It has the anti-drain back and the pressure relief valve in it!! I'll paint the thing the same color as my bike. All for less than 1/3rd the cost of a HD stealer!!--- Put me in some Mobil 1 syn V-Twin motor oil, some spectro gear oil in the tranny and some uh------lets see I don't know what to put in the Primary yet--maybe have to go with the HD formula +(any suggestions out there?----Good thread and posts. Lots of insite!!