Where can I get coolant bypass O-rings

4.6andSlicks

New Member

Aug 22, 2006

171

1

0

Central Connecticut

Aug 16, 2009

#1

• Aug 16, 2009

• #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?

 

jeremy canter

Member

Dec 2, 2008

402

0

17

Orange County , NY

Aug 16, 2009

#2

• Aug 16, 2009

• #2

NAPA ?

 

4.6andSlicks

New Member

Aug 22, 2006

171

1

0

Central Connecticut

Aug 16, 2009

#3

• Aug 16, 2009

• #3

jeremy canter said:

NAPA ?

Click to expand...

That was the first place I checked and they couldn't find it in a number of different books nor can I find it on line, even at the Ford OEM sites.

 

4.6andSlicks

New Member

Aug 22, 2006

171

1

0

Central Connecticut

Aug 16, 2009

#4

• Aug 16, 2009

• #4

Could they be the same ones used in the thermostat housing?

 

COBRA90GT

Mustang Master

Sep 22, 2001

6,654

0

87

HOCKEYTOWN ® , MI

Aug 16, 2009

#5

• Aug 16, 2009

• #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

 

B

bdcardinal

tree hugger

Jun 10, 2003

3,612

16

69

santa barbara, CA

Aug 17, 2009

#6

• Aug 17, 2009

• #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.

 

Steve491

Member

Apr 20, 2008

254

2

19

Charlotte, NC

May 19, 2010

#7

• May 19, 2010

• #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?

 

Jeremy Whipkey

New Member

Apr 16, 2016

1

0

1

Apr 16, 2016

#8

• Apr 16, 2016

• #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.

 

Last edited: Apr 16, 2016