Ok The jury has made there decesion. I agree peace of mind. And I dont like oil spots on the garage floor. Thanks again for all the imput. Bob.

 

How many of you change it every time you change oil in your car? Id bet few if any, I agree its probably not a bad idea but I think changing it every time is an overkill. Im still amazed how people freak out and over analyse everything on a Harley but will overlook the same questions on a automobile.

 

First my car doesnt have an O ring it has a crush washer and yes i change it every time i change my oil because the book says to.
Second, I dunno about your dealer's but mine GIVES me an O ring when i buy all my service stuff. Thats good business.

 

I always change it, makes little sense not to. Wouldn't want to develope a leak on the road.

 

The HD parts bag that has the primary seal has all the other
o rings in it.

 

F.y.I. the o-ring is 9/16 o.d. x 7/16 I.d. 1/16 cross section (thickness) buna or viton material is fine.

 

I've used them several times and never had a problem. But as a precautionary habit maybe change the o-ring every other oil change and you'll never have an issue. True Value has them for MUCH cheaper than H-D sells them. Get a pack of 10 of them and that'll last you a couple years easily.

 

Caca, I can see slivers of o rings sticking past the plugs from the 1000 mile checkup.

 

Anyone know what size hole the drain plug actually fits into? Im also curious who uses thread sealant, the manual calls for that on the threads and have yet to hear anyone mention it but Im more interested in what the hole size is?

 

Hey Arizona whats the size on the packaging from True Value?...thanks Tucci