Trans line adapter size

[2Luke2]

I'm looking for the size of the fitting that the trans line connect to. I need two new ones since my radiator didn't come with them and trying to avoid taking the whole radiator to ACE hardware to size them up haha...

[ws23rt]

The female thread in the radiator trans cooler is  1/8-27  NPT  (pipe thread)
So the fitting will be 1/8-27 NPT male by 5/16 female flair (if that is the cooler line size you have)
BTW a 1/2-20 tpi bolt will thread into the female flair end of the fitting if you want to check it out at the store.

[2Luke2]

Thank you for the info. The Line is in the car along with the radiator. The only size I got was that the trans line out nut is 5/8", but that doesn't say much else about what I need. I might just suck it up and take it to ACE to make sure I get it right the first time.

[John_Kunkel]

The female thread in the radiator trans cooler is  1/8-27  NPT  (pipe thread)
So the fitting will be 1/8-27 NPT male by 5/16 female flair (sic)

Actually, the fitting on the radiator is male flare, the b-nut on the tubing is female.

[ws23rt]

The female thread in the radiator trans cooler is  1/8-27  NPT  (pipe thread)
So the fitting will be 1/8-27 NPT male by 5/16 female flair (sic)

Actually, the fitting on the radiator is male flare, the b-nut on the tubing is female.

Oops--You are right. The radiator I looked at had female fittings. Someone had changed them for some reason.

[2Luke2]

I took the whole radiator to ACE and they didn't have anything related. I was pretty surprised. I then took it to O'Reilly's and they had a fitting that would fit in the radiator, but to my dismay it was much too small on the line side. I was thinking I could just get an adapter, but I think I should really try to find the right size and do it right the first time. So I need to try to find the ID of the connecting nut that slides over the trans line.

[John_Kunkel]

Here's what you want.

http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/product_sae-45-degree-flare-fittings-connector--male-5-16-in-1-8-in-mnpt-dorman--autograde_22146704-p

[2Luke2]

Here's what you want.

http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/product_sae-45-degree-flare-fittings-connector--male-5-16-in-1-8-in-mnpt-dorman--autograde_22146704-p

Damn! Thanks John! Was about to make another trip to the store to look again. We got the 1/8 part, but it was on both ends.

[2Luke2]

Well crap, we went to 4 or 5 different places and no one had them. The Advanced Auto place said they couldn't even order them. Going to try to order them online now.

Anyone know if we would be safe to run the engine for the 20-30min break in with a just loop from one trans line to the other? We just want to check for leaks and break the motor in and be able to work other issues if they arise. I figured it would be ok if we weren't driving anywhere. Heck I'll even make the loop long enough so I can dip it into a bucket of ice water haha...

[2Luke2]

Well we just tried to order them online with no luck. Back to the drawing board. 

[ws23rt]

Well crap, we went to 4 or 5 different places and no one had them. The Advanced Auto place said they couldn't even order them. Going to try to order them online now.

Anyone know if we would be safe to run the engine for the 20-30min break in with a just loop from one trans line to the other? We just want to check for leaks and break the motor in and be able to work other issues if they arise. I figured it would be ok if we weren't driving anywhere. Heck I'll even make the loop long enough so I can dip it into a bucket of ice water haha...

I am surprised you can't find the fitting local. It is not an odd ball.
What you could do to get you going for the time being is get a couple of 1/8 27 npt / hose nipple fittings and use hose clamps and hose.
Or cheaper yet just connect the two lines together with hose and clamps.
You don't need the cooling aspect aside from extreme driving conditions anyway. This will get you along until you find the correct fittings.

[Cooter]

Most stores don't keep a lot of this stuff on hand, but agreed ,looks like they could order it.

[John_Kunkel]

This isn't an automotive-only part, it's a common plumbing fitting that can be found at plumbing supply stores.

[john108]

Just a comment:  I used many flair tube fittings during my career, in Aerospace Engineering, and the only fittings I used had a 37 degree flare.  I just learned something that I didn't know, 45 degree flare.

I often used Parker fittings but many other manufacturers exist:
http://www.parker.com/portal/site/PARKER/menuitem.223a4a3cce02eb6315731910237ad1ca/?vgnextoid=745f55e6c8a5e210VgnVCM10000048021dacRCRD&vgnextfmt=EN

[Moparparts]

I have quite a few nice used original factory fittings PM or E-Mail me if you still need them

I'm looking for the size of the fitting that the trans line connect to. I need two new ones since my radiator didn't come with them and trying to avoid taking the whole radiator to ACE hardware to size them up haha...

[2Luke2]

I have quite a few nice used original factory fittings PM or E-Mail me if you still need them

I'm looking for the size of the fitting that the trans line connect to. I need two new ones since my radiator didn't come with them and trying to avoid taking the whole radiator to ACE hardware to size them up haha...

Thanks for the offer, but I think the issue is that I have a custom built radiator. What size are the two sides of the fittings that you have?