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Brake Lines & Complete Replacement Brake Line Kits

Shop replacement brake lines for every make and model — from single pre-cut lines to complete brake line kits with enough tubing and fittings for the whole vehicle. Whether you need rust-proof copper-nickel brake lines for a winter daily or polished stainless lines for a restoration, every option below is DOT-approved and covered by our lifetime warranty.

Why Upgrade Your Brake Lines?

Your brake pedal is only as strong as the brake lines carrying hydraulic pressure to each wheel. Most factory steel tubing corrodes, kinks, or pin-holes after a few winters—especially if you drive in the Rust Belt or anywhere road salt is common. Upgrading to our rust-proof copper-nickel or stainless-steel brake line kits eliminates those weak spots and restores firm, predictable stopping power. Every coil, fitting, and adaptor we sell is DOT-approved and backed by a lifetime warranty.

Choose Your Material

Copper-Nickel — Will never rust, bends by hand, and flares easily with basic tools. The best choice for DIY repairs and Rust Belt vehicles.

Stainless Steel — Maximum strength and a polished look for show cars, restorations, and performance builds. Requires quality tools to bend and flare.

PVF-Coated Steel — OE-style steel with a corrosion-resistant coating rated for years of salt exposure. Closest to factory original.

Galvanized Steel — The budget-friendly OE replacement for vehicles outside heavy-salt regions.

What's in a Kit?

Each complete replacement kit includes enough 3/16" or 1/4" tubing to re-line an entire vehicle plus the SAE and metric fittings most vehicles need — no second trip to the parts store. Kits ship as easy-to-straighten coils, so they work for any make and model. Need just one line? See our pre-cut brake lines with fittings already installed.

Coil Kit or RightQuick?

Coil kits give you full flexibility to route and flare each line yourself. Our RightQuick kits cut the work down with pre-flared, fitted sections you join in place — the fastest path to a finished job.

FAQ

What size brake line does my vehicle use?

Most cars and light trucks use 3/16" line for brakes; 1/4" is common for longer rear runs, fuel return, and transmission cooler lines. Measure your existing line or check the fitting threads to confirm — our brake line size guide walks through it.

Is copper-nickel brake line legal and DOT-approved?

Yes. Our copper-nickel tubing meets SAE J1047 / ISO 4038 specifications and is street-legal in all 50 states.

How do I know my brake lines need replacing?

Look for rust scale, weeping fluid, a soft pedal, or a dropping reservoir. Our guide to spotting brake line failure covers the warning signs.

Do these kits work for bubble and double flares?

Yes — the tubing accepts both. Form the flare your vehicle's ports require; see our bubble vs. double flare guide.

Ready to Upgrade?

Grab the brake line kit that matches your build. Every kit ships fast, installs easy, and carries our unconditional lifetime warranty—so you can stop with confidence for a lifetime.

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$150

Showing 1 — 16 of 83 Products
Showing 1 — 16 of 83 Products
3/16" & 1/4" x 25 | Copper-Nickel Brake Line Tubing Coil and Fitting Kits | 2 Kits - 4LifetimeLines
Brake Line Kit
4.9
Rated 4.9 out of 5 stars
18 Reviews
2-Pack 3/16″ + 1/4″ Copper-Nickel Brake Line Tubing & Fitting Set – Durable & Corrosion-Resistant
3/16" x 25 | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
Brake Line Kit
4.7
Rated 4.7 out of 5 stars
46 Reviews
3/16" x 25' Stainless Steel Brake Line Kit 16 SAE Thread Fittings
1/4" x 25 | Copper-Nickel Brake Line Tubing Coil and Fitting Kit - 4LifetimeLines
Brake Line Kit
4.9
Rated 4.9 out of 5 stars
8 Reviews
1/4" x 25' | Copper-Nickel Brake Line Tubing Coil and Fitting Kit
3/16" x 25 | Copper-Nickel Brake Line Tubing & Fittings | 2 Kits - 4LifetimeLines
Brake Line Kit
4.8
Rated 4.8 out of 5 stars
6 Reviews
3/16" x 25' | Copper-Nickel Brake Line Tubing & Fittings | 2 Kits
1/4" x 25 | Stainless Steel Brake Line & Fitting Kit - 4LifetimeLines
Brake Line Kit
4.7
Rated 4.7 out of 5 stars
3 Reviews
1/4" x 25' Stainless Steel Brake Line & Fitting Kit
Sale
Copper Coated Steel Brake Line Kit 3/16" 25 - 4LifetimeLines LTCCGC325KIT
Brake Line Kit
5.0
Rated 5.0 out of 5 stars
1 Review
3/16" x 25' | Copper Coated Steel Tubing Coil and Fitting Kit
Sale
Galvanized Steel Coil with Tube nut Fittings
Brake Line Kit
4.8
Rated 4.8 out of 5 stars
8 Reviews
3/16" x 25' Galvanized Steel Brake Line Kit with Fittings
3/16" Copper Nickel Brake Line Replacement Kit and 3/16" Union Kit - 4LifetimeLines
Brake Line Kit
5.0
Rated 5.0 out of 5 stars
4 Reviews
3/16" x 25' Copper Nickel Brake Line Kit and 3/16" Union Kit
3/16" x 25 | Copper-Nickel Brake Line Kits | 4 Kits - 4LifetimeLines
Brake Line Kit
4.7
Rated 4.7 out of 5 stars
6 Reviews
3/16" x 25' | Copper-Nickel Brake Line Kits | 4 Kits
1/4" x 25 | Copper-Nickel Brake Line Tubing Coils and Fittings | 2 Kits - 4LifetimeLines
Brake Line Kit
5.0
Rated 5.0 out of 5 stars
3 Reviews
1/4" x 25' Copper-Nickel Brake Line Tubing Coils and Fittings | 2 Kits
Sale
Copper Coated Steel Brake Line Kit 1/4" 25 - 4LifetimeLines LTCCGC425KIT
Brake Line Kit
5.0
Rated 5.0 out of 5 stars
1 Review
1/4" x 25' Copper Coated Steel Brake Line Tubing Coil and Fitting Kit
3/16" x 50 | PVF-Coated Steel Brake Line and Fitting Kit - 4LifetimeLines
Brake Line Kit
4.0
Rated 4.0 out of 5 stars
3 Reviews
3/16" x 50' | PVF-Coated Steel Brake Line and Fitting Kit