Where can I get coolant bypass O-rings

4.6andSlicks

New Member
Aug 22, 2006
171
0
0
Central Connecticut
#1
I removed the coolant bypass pipe on my 01 Cobra, the one with the bleeder in it and I'm trying to replace the o-ring on either end of it before reinstalling but I can't find them anywhere.

I haven't checked the dealer but I can't believe a parts store wouldn't have something like this. I thought maybe I'm calling the by the wrong name or something.

Any help out there?
 
#5
It sounds like you are referring to the "coolant crossover pipe" by the alternator, correct? If so, your local Ford parts department can order the o-rings for you (if they don't have any in stock).

If your local Ford parts dept isn't very competent and looks at you sideways when you inquire about said o-rings, try giving Steve at Tousley Ford in MN a call (Google for his info). Or, try any of the other "mustang friendly" Ford parts guys who cater to enthusiasts on the 'stang msg boards...

G'luck.


edit - found the part number via our handy search function:

391533-S100
 
#6
o-rings are available separate, they are not the same part number as the t-stat o-ring. 391533-s100 should be the part number you are looking for, they go into the head. its a standard part number, not a normal part number if there is any confusion.
 
#7
You are correct about the part number 391533-S100. The dealership I called didn't have any in stock but several other Ford dealers in town had 1 in stock. Of course I need 2
BTW, What's the difference between a standard part number and a normal part number?
 
#8
jeremy canter said:
NAPA ?
Click to expand...
+1 Napa carries 0-rings that are resistant to oil, ethylene glycol, gasoline, etc I bought all my o-rings there and have no trouble. Take your old o-ring or measure your old o-ring I.D., O.D. if you happen to not have an old one to measure, take your part down, Napa has a whole box of O-rings, they can fit to your part. Surprised at this thread because this was a no brainer for me. ha! Hope this helps others though. Don't go in Napa trying to use a part # they have a whole box of multiple o-rings and they do have anywhere from 1/8 I.D. 1/4 O.D. to 2 1/2 in or more. Just take an old one or a part so they can match it up at the counter. K.I.S.S. Keep It Simple Stupid. By the way they are anywhere from .63 cents for a 1 1/8 I.D "crackpipe" water outlet on passenger side head size to .90 cents for a larger one.
 
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