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Stainless Steel Brake Line - Pre-Cut 3/16" 51" - 4LifetimeLines LTSSBL351
Stainless Steel Brake Line - Pre-Cut 3/16" 51" - 4LifetimeLines LTSSBL351

3/16" x 51" Brake Line Stainless Steel Brake Line

$11.99

SKU: LTSSBL351

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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.

3/16" x 51" Straight Stainless Brake Line

Upgrade your brake system with the 4LifetimeLines® 3/16″ × 51″ Straight Stainless-Steel Brake Line, engineered from marine-grade 316L stainless steel for ultimate durability and corrosion resistance. This 51-inch line comes pre-flared and fitted with SAE nuts and caps to deliver a secure, leak-free connection that meets or exceeds DOT FMVSS 106 standards.

Whether you’re restoring a classic, enhancing a performance build, or replacing worn OEM lines, the straight-through design allows for exact routing in tight engine bays or custom chassis layouts. Simply cut to length if needed, deburr the end, thread onto your existing unions or adapters, and bleed the system for an immediate improvement in pedal feel and long-term reliability.

Crafted to withstand rust, brake-fluid vapors, and harsh driving conditions, this brake line installs in minutes and delivers pro-grade performance mile after mile—no flaring tools or special adapters required. Add the 3/16″ × 51″ Straight Stainless-Steel Brake Line to your cart today and drive with confidence on every journey.

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.

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

Stainless Steel

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

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

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

White canister of Tire Mounting Lubricant labeled for lifetime use sits on a concrete surface. Reflective metal rims blurred in the background.

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.

Blue background with large yellow semicircle on the right. Bold white text reads The 4Lifetime Difference.
Typical Parts Store

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.