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4LIFETIMELINES Brass Brake Line Union, 3/16 (M10x1.0 Inverted), 10/bag

Free shipping on orders over $29.99

$12.99

$ 5 .99 $5.99

In Stock

About this item

  • Our 3/16 (M10x1.0 Inverted) brake line unions are made with unmatched superior quality
  • 4LifetimeLines unions are made of durable brass which is resistant to corrosion from salt that can be used on roads in the winter
  • Suitable for brake hydraulic line union applications
  • Compatible with steel, copper nickel, copper coated steel, PVF-coated, and stainless steel replacement lines
  • 4LifetimeLines provides a Lifetime warranty included on all of our products



Kindle Customer
Thursday, July 3, 2025
Perfect. Worked like it was supposed to.
DonV
Sunday, June 29, 2025
Used to fix rotten hard lines on my Subaru Outback. No leaks in two years of use. Just be sure to prepare good flared connections.
Han
Saturday, May 31, 2025
The media could not be loaded.
M&M
Monday, May 19, 2025
Worked great and having this quantity, avoided many auto part trips!
josh
Monday, May 12, 2025
These brass unions were perfect for my subaru. Definitely high quality
NOO Body
Wednesday, April 9, 2025
I ended up following the old lines with out choosing to use any unions but these are pretty good quality.
dre
Tuesday, April 1, 2025
DiY easy work with this item
Genuine reviewer
Tuesday, February 25, 2025
Worked perfect no leaks. Easy to tighten down even though it’s a small piece
Jude Carpino
Monday, February 3, 2025
Good luck finding these anywhere else
khalil
Saturday, December 7, 2024
I always buy these brake unions for fixing my cars, but sometimes the threads are a bit weak, these ones are well threaded and they lock with the brake line ones . super happy will buy again when needed
Gary Soper
Tuesday, November 19, 2024
Very disappointed. Most of the Union Threads were such poor quality that they were unusable. Returned