Skip to content
Anchor for skip content
Page overlay
3/16" Copper-coated Steel Brake Line Replacement Kit and 3/16" Union Kit - 4LifetimeLines
3/16" Copper-coated Steel Brake Line Replacement Kit and 3/16" Union Kit - 4LifetimeLines
3/16" Copper-coated Steel Brake Line Replacement Kit and 3/16" Union Kit - 4LifetimeLines
3/16" Copper-coated Steel Brake Line Replacement Kit and 3/16" Union Kit - 4LifetimeLines
3/16" Copper-coated Steel Brake Line Replacement Kit and 3/16" Union Kit - 4LifetimeLines
3/16" Copper-coated Steel Brake Line Replacement Kit and 3/16" Union Kit - 4LifetimeLines

3/16" Copper-Coated Steel Brake Line Replacement Kit & Union Kit

$12.99

SKU: LTCCGCBU325KIT

VISA
American Express
Mastercard
Discover
Union Pay

Copper-Coated Brake Line Kit – 3/16″ × 25 ft

The 4LifetimeLines Copper-Coated Brake Line Fittings Kit (LTCCGCBU325KIT) is a complete set of union and adapter fittings designed to pair with copper-coated steel brake line, PVF-coated steel line, or other compatible hard tubing. These precision-machined fittings help shops and technicians create secure, leak-resistant connections when assembling or repairing hard lines in brake, fuel, or transmission plumbing systems.

Built for corrosion resistance and durability, each fitting in this kit is engineered to work with single and double flared tubing. Using this fittings kit helps streamline fabrication and repair work by eliminating the need to source individual adapters, saving time and improving install consistency. Backed by the 4LifetimeLines lifetime warranty, this kit provides dependable performance and peace of mind for professional brake and fluid system work.

Tubing Size: 3/16"
Tubing Length: 25'
Material: Copper-Coated Steel
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
Corrosion Resistance: 1/5 – Copper-Coated Nickel: Basic protective layer for mild conditions and standard replacement needs.
Warranty: Lifetime

Here to help

Not sure where to start? No problem. From automotive lubricants to brake lubricants and maintenance solutions, we’re here to help you choose the right products for your vehicle and your project.
Contact Us Contact Us
Talk to a Specialist Talk to a Specialist

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.

Checkmark

FREE SHIPPING

Spend $50. We Cover the Rest.

Checkmark

BUILT TO ENDURE

No Weak Points. No Compromises.

Checkmark

LIFETIME WARRANTY

One Purchase. Lifetime Coverage.

Checkmark

TRADE FRIENDLY

Tax-Exempt Pricing for Qualified Buyers

The 4Lifetime Difference

Engineered to Last. Backed for Life.

Close-up of metallic square components with circular openings arranged in a grid pattern. The image conveys precision and industrial craftsmanship.

Engineered to Last. Backed for Life.

Checkmark

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

No Corners Cut. Ever.

A person wearing black gloves is scooping white lithium grease from a blue container with a label in a workshop setting.

No Corners Cut. Ever.

Checkmark

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

A Smart, Risk-Free Buy

Mechanic in a garage holds a coiled metal hose while working under a car. The background shows blurred shelves with tools and parts, conveying focus and expertise.

A Smart, Risk-Free Buy

Checkmark

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.

A hand uses a metalworking tool to notch a cylindrical metal pipe secured in a vise. The setting is a workshop, conveying precision and craftsmanship.

Straightforward. No Fine Print.

Checkmark

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

Checkmark

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.
Competitors

Backed for Life

No Fine-Print Guarantee

Built to Outlast

Pro-Grade Materials

Real Human Support

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.