Looking for a source for Aztek Brake Lines and Brake Line Kits. Searched here and did not find any topic. Tried SStubes .com and they don't seem to have them. Also, are they same for Aztek as Buick Rendezvous?

http://www.rockauto.com/info/314/15823115_Primary__ra_p.jpg is not available at rock auto but a google search of the part #  got me this

https://www.tonkinonlineparts.com/showAssembly.aspx?ukey_assembly=824174&ukey_make=1084  that shows the same brake line part number ( and a whole lot more) but no longer available. You can try and give them a call and they may be able to give you an alternate number

https://www.tonkinonlineparts.com/p/Buick__/PIPE-Hydraulic-Brake/6140658/15823115.html

If you are looking for the brake lines / hoses to the drums etc rock auto has them listed under hydraulic hoses.

A lot of parts are interchangeable between the Rendezvous and Aztek. I don't want to say they all are but there are a lot of common parts

The hard brake lines for the front are going to be the same inbetween the 2 platforms. However, I am fairly positive that they are not interchangeable for the rear. The Rendezvous is 4 inchs longer, so the brake lines would also be about 4 inchs longer.

I would suggest finding a salvage yard, and pulling them from a donor vehicle. Preferably from the southern regions, or Colorado, as they wont be rusty, and the fitting should release from the terminals easier.