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Copper Nickel Brake Line - Pre-Cut 1/4" 8" - 4LifetimeLines LTNCBL408
Copper Nickel Brake Line - Pre-Cut 1/4" 8" - 4LifetimeLines LTNCBL408

1/4" x 8" Domestic Copper Nickel Brake Line

$5.99

SKU: LTNCBL408

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Not sure what size you need? 3/16" is the most common brake line size — check the size chart or call 1 (855) 928-4024.

1/4" x 8" Copper-Nickel Brake Line – Pre-Flared with 3/8-24 Fittings

Upgrade your brake system with confidence using the 1/4" x 8" Domestic Copper-Nickel Brake Line, precision-engineered for exceptional durability, rust resistance, and reliable performance. Whether you're performing a quick repair or a full custom build, this short-length pre-flared line is ideal for tight spaces and high-performance applications.

Premium Copper-Nickel Construction
Built from high-quality copper-nickel alloy, this line offers superior corrosion resistance—perfect for use in salty, wet, or harsh environments. It’s flexible, easy to work with, and long-lasting—trusted by pros and DIYers alike.

Pre-Flared for Leak-Free Sealing
Each end is inverted double-flared for a tight, leak-proof fit. Designed for use with standard 3/8-24 brake fittings, installation is quick and secure with no guesswork.

Black-Oxide Coated Tube Nuts
Fitted with durable black-oxide coated tube nuts, this brake line delivers a professional look and added protection against corrosion.

Perfect for Domestic Brake Systems
This line is fully compatible with most U.S. domestic vehicles and brake components—making it a reliable choice for repair shops, restorers, or home garages.

Key Features:

1/4" OD x 8" length copper-nickel tubing

Corrosion-proof and highly flexible

Pre-flared with 3/8-24 black-oxide tube nuts

Easy to bend, flare, and install

Compatible with domestic brake system components

Ideal for small repairs or tight routing applications

Professional-grade materials, DIY-friendly design—get dependable braking performance with 4LifetimeLines’s trusted copper-nickel brake lines.

Choose with confidence

Which brake line material is right for you?

Every 4LifetimeLines tubing material is built to last. The difference comes down to corrosion resistance, how easily it bends, and price. Here's how they stack up.

★ Most Popular Copper-Nickel CuNi 90/10   Stainless Steel 304 SS   PVF-Coated Steel Poly-coated   Galvanized Steel Zinc-coated   Copper-Coated Steel Cu-coated
Corrosion resistance●●●●●●●●●●●●●●○●●●○○●●●●○
Bends & flares by hand●●●●●No bender needed●●○○○Stiff — tools req.●●●○○Bender recommended●●●○○Bender recommended●●●○○Bender recommended
Strength & durability●●●●○●●●●●●●●●○●●●●○●●●●○
Best forDIY repairs, road-salt climates, fast installsShow cars & custom builds, max strengthOEM-style replacement with extra protectionBudget repairs, dry climatesBudget builds needing rust resistance
Price$$$$$$$$
Shop Copper-NickelShop StainlessShop PVF SteelShop GalvanizedShop Copper-Coated

Copper-Nickel ★ MOST POPULAR

Corrosion resistance●●●●●
Bends by hand●●●●● · No bender needed
Strength●●●●○
Best forDIY repairs, road-salt climates, fast installs
Price$$
Shop Copper-Nickel

Stainless Steel

Corrosion resistance●●●●●
Bends by hand●●○○○ · Stiff — tools req.
Strength●●●●●
Best forShow cars & custom builds, max strength
Price$$$
Shop Stainless

PVF-Coated Steel

Corrosion resistance●●●●○
Bends by hand●●●○○ · Bender recommended
Strength●●●●○
Best forOEM-style replacement with extra protection
Price$
Shop PVF Steel

Galvanized Steel

Corrosion resistance●●●○○
Bends by hand●●●○○ · Bender recommended
Strength●●●●○
Best forBudget repairs, dry climates
Price$
Shop Galvanized

Copper-Coated Steel

Corrosion resistance●●●●○
Bends by hand●●●○○ · Bender recommended
Strength●●●●○
Best forBudget builds needing rust resistance
Price$
Shop Copper-Coated

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Free Shipping

FREE SHIPPING

Spend $50. We Cover the Rest.

Built to Endure

BUILT TO ENDURE

No Weak Points. No Compromises.

Lifetime Warranty

LIFETIME WARRANTY

One Purchase. Lifetime Coverage.

Trade Friendly

TRADE FRIENDLY

Tax-Exempt Pricing for Qualified Buyers

The 4Lifetime Difference

Engineered to Last. Backed for Life.

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Engineered to Last. Backed for Life.

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When we say lifetime warranty, we mean it. Our products are built to endure & we stand behind them.

No Corners Cut. Ever.

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No Corners Cut. Ever.

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Quality materials. Proven craftsmanship.
Built with materials and workmanship we trust. No shortcuts.

A Smart, Risk-Free Buy

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A Smart, Risk-Free Buy

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Buy once. Be done.
This isn’t a temporary fix — it’s a long-term solution. Built-in confidence. Zero guesswork.

Straightforward. No Fine Print.

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Straightforward. No Fine Print.

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What you see is what you get.
Clear terms. Honest coverage. No hidden clauses. No loopholes. No runaround.

Backed for the Long Haul

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Backed for the Long Haul

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We stand behind every product.
As long as you own it, we’ve got your back.

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Meets SAE / OE specifications

Easy returns — no restocking games

Same-day shipping (order by 2 PM ET)

Lifetime warranty on every product

Loyalty rewards on every order

100+ 5 star reviews

“.. easy to get the part you need, when you need it.”

Jackson

Great Experience

Great received day early good product this is 3rd time doing business with 4LifetimeLines

Happy Customer

Great product!! I’ve ordered these before and they are great quality! I’ll be back again.

Excellent

Excellent product shipped quickly and inexpensively. I will be ordering again.

Ideal Products

Ideal stuff for fabricating brake lines brake lines at a very good price.Kit very well covers the materials for doing the whole brake line system.

Reasonable price and fast shipping!

I'll be back again!

Great Seller!

Great seller to deal with. Fast shipping and great products.

Great products, competitive prices, and fast shipping. Communication is also top notch.

This was my first purchase and the experience has been fantastic. Great products, competitive prices, and fast shipping. Communication is also top notch.

Great products, competitive prices, and fast shipping.

This was my first purchase and the experience has been fantastic. Great products, competitive prices, and fast shipping. Communication is also top notch.