Help-Brake Line Diameter

[Snowshoer]

Blew a rear brake line on my 2004 Sport 4.7L the other day. It is leaking and looks to be above the rear axle or main line running from the front to back. Either way, I for the life of me can't find the diameter and fitting size so I can replace it. Can anybody help with that? Also, does Toyota use the standard flare or something different if I have to flare it myself? Thank you.

 

[Mike07SE]

My experience is based on my repairs done on the front end, but I found that 3/16" lines with M10-1 double flare / Inverted flare nuts (not bubble) are what work.

Front Brake Line

 

[Snowshoer]

Thanks, I was thinking it was the 3/16" line with a M10x1.0 fitting. I want to get the line first before tearing the rotted section out. I am hoping its not the long run from front to back over the tank. I have to check it tonight.

 

[MikeinNH67]

On my 03 most of my brake lines looked in bad shape so I replaced 95% of them with these:

https://www.amazon.com/gp/product/B01DAQ0MV2/ref=oh_aui_search_asin_title?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B015YGQYW2/ref=oh_aui_search_asin_title?ie=UTF8&psc=1

The line I listed is super easy to manipulate, hard to kink and does not rust. You can borrow/rent the flare tool from someone like Autozone.