My speed sensor was leaking and rather than replacing an expensive part that functioned fine I pulled mine out and replaced the O ring on it that was leaking. You can't just purchase the O Ring on it, you have to purchase the whole part, which is really unnecessary if you ask me. So I went to Autozone and Napa and neither one of them carried an O ring big enough. Well the guy at Autozone suggested that I go to Home Depot or Lowes and check out their plumbing department. I went to the local Home Depot and found one of the appropriate size and purchased it. I went home and installed it and it worked perfectly. I cleaned up the area around it where it was leaking so I could tell if it was still leaking. I've only driven it 100 miles but it appears that it worked, its dry as a bone around the sensor and before it was really wet there from the seepage. So time will tell but I think i fixed it. If I fixed it for 57 cents thats awesome.