1/4" x 25' Copper-Nickel Brake Line Kit – Includes Steel Fittings

Ensure long-lasting brake performance with the 4Lifetime 1/4" x 25' Copper-Nickel Brake Line Kit, complete with durable steel inverted flare fittings. Whether you're upgrading a classic car, performing general maintenance, or building a custom system, this kit provides everything you need for a corrosion-resistant, flexible, and reliable brake line install.

Rust-Free Copper-Nickel Tubing
Made from premium copper-nickel alloy, the tubing is highly resistant to corrosion—perfect for regions with snow, salt, or humidity. Its 0.028” wall thickness ensures strength while still being easy to bend and flare, even in tight spaces.

Includes Heavy-Duty Steel Fittings
Each kit includes 16 high-quality steel fittings, precision-machined to form tight, leak-free seals. Designed to work seamlessly with domestic braking systems, this kit offers universal compatibility and peace of mind.

DIY-Ready & Shop-Approved
Bend, flare, and install without special tools. Whether you're a seasoned mechanic or a DIY enthusiast, this brake line kit delivers professional results with minimal effort.

Kit Includes:

25 ft of 1/4" copper-nickel brake line tubing

16 steel tube nuts:

10 x (7/16-24 inverted, long)

2 x (7/16-24 inverted)

2 x (9/16-18 inverted)

2 x (1/2-20 inverted)

Key Features:

Rust-proof copper-nickel tubing for maximum longevity

Easy to bend, flare, and route

Includes 16 steel inverted flare fittings

Compatible with standard DOT brake fluids

Meets SAE & ISO standards

Backed by a lifetime warranty

Get the reliability of steel and the flexibility of copper-nickel—all in one complete brake line kit.