Is there any other place than mail order or dealerships to get one?

It's the last thing I need to button her up.

I noticed a bit of seepage and when I pulled the sensor, I found a broken o ring.

 

Take your broken o-ring and try and match it at Ace Hardware.

 

I just globbed some rtv around the sensor mating surface and oring. That was like 6 months ago, no leaks since. Once it bolted it back down a little loose, I wiped the excess off, let it sit for about an hour then tightened it down good. Looks good and no leak. It's not under a whole lot of pressure.

 

I.put it back on with an o ring from Ace Harware and some rtv.....keeping fingers crossed.

Thanks guys.....

 

Should be looking for a silicone based o-ring as they are the most resistant to the engine fluids. Most plumbing type o-rings are neoprene that are not the best.

 

Ace has automotive use o-rings in the bolt section.