I went into my local dealer yesterday to buy cam & crank seals for my Impreza. I had all info ready about the car...except the VIN. Walked outside to get the VIN,came back in and gave it to the parts manager. About a minute later, he came out with the (3) seals, PLUS the O-ring for the oil pump. I didn't know I needed the O-ring. Overall, a nice experience. Glad the manager pointed out the need for the oil pump O-ring, otherwise, I'd have never known and been car-less for a few days.