Thanks! Do you need both sets of O-Rings, or just 4 of the larger. It looks like NEW genuine solenoids already come with the smaller one attached. Also, I scored 4 solenoids (pn #11367560462) for $120.99 apiece. I pulled the trigger on 4 after trying to get a few other vendors to price-match. I soon learned that this was less than cost, so I could not resist purchasing. Right after I hit submit order, they were jumped back up to $167.99. Interesting, right??? RealOEM shoes $118.xx...a little hard to figure why. Anyway, hopefully I only need the larger O-Ring for replacing with new solenoids. Thanks.