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3/16" Copper Nickel Brake Line Replacement Kit and 3/16" Union Kit - 4LifetimeLines
3/16" Copper Nickel Brake Line Replacement Kit and 3/16" Union Kit - 4LifetimeLines

3/16" x 25' Copper Nickel Brake Line Kit and 3/16" Union Kit

$26.99
5.0
Rated 5.0 out of 5 stars
4 Reviews

SKU: LTCCBU325KIT

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3/16" Copper Nickel Brake Line Kit

 

The 4LifetimeLines Copper-Nickel Brake Line Fittings Union Kit (LTCCBU325KIT) delivers a complete set of precision SAE inverted-flare union and adapter fittings tailored for copper-nickel hard lines. Designed for professional technicians and shop owners, this kit simplifies brake line fabrication and repair by providing the fittings you need to join or extend copper-nickel brake tubing with secure, leak-resistant connections.

Each fitting is machined to SAE standards and engineered to pair seamlessly with copper-nickel (CuNi 90/10) brake line, helping reduce corrosion-related failures and improve long-term reliability compared to basic steel fittings. Whether you’re replacing corroded unions or building custom brake line runs, this union kit helps streamline workflow and ensure consistent, professional results. Backed by the 4LifetimeLines lifetime warranty, it’s a dependable addition to any shop toolkit focused on quality and repeatable performance.

Tubing Size: 3/16'
Tubing Length: 25'
Material: Copper-Nickel / Alloy Fittings
Wall Thickness: 0.028"
Flaring Compatibility: Single/Double flare compatible
Standards/ Compliance: SAE inverted-flare standard
Including Fittings: Yes – complete union & adapter fittings kit
Applications: Brake (hard line join/extension)
Corrosion Resistance: 5/5 – Copper Nickel: Maximum corrosion resistance for severe salt / coastal / long-term installs.
Warranty: Lifetime

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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.

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FREE SHIPPING

Spend $50. We Cover the Rest.

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BUILT TO ENDURE

No Weak Points. No Compromises.

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LIFETIME WARRANTY

One Purchase. Lifetime Coverage.

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TRADE FRIENDLY

Tax-Exempt Pricing for Qualified Buyers

The 4Lifetime Difference

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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Clear terms. Honest coverage. No hidden clauses, no loopholes, no runaround.

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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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
M
Marion K.

Happy Customer

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

Excellent

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

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.
T
Thomas J.

Reasonable price and fast shipping!

I'll be back again!
R
Robert E.

Great Seller!

Great seller to deal with. Fast shipping and great products.
M
Mike G.

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.
D
David B.

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.
P
Peter S.
5.0
Rated 5.0 out of 5 stars
Based on 4 reviews
Total 5 star reviews: 4 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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4 reviews
  • Rated 5 out of 5 stars
    3 years ago
    Haven’t had time to use

    Haven’t had time to use kit but I have had other kits from you they worked great!

    MK
    Marion K.
    Was this helpful?
  • Rated 5 out of 5 stars
    3 years ago
    3/16 copper nickel brake line

    Great product, easy to flair. Very fast shipping.

    MF
    Mike F.
    Was this helpful?
  • Rated 5 out of 5 stars
    4 years ago
    good product, fast shipping

    good product, fast shipping

    MC
    michael c.
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  • Rated 5 out of 5 stars
    5 years ago
    Perfect!

    Now the old Ford 800 tractor will have a new fuel line.

    WG
    Wubble G.
    Was this helpful?