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3/16" x 25 | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
3/16" x 25 | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
3/16" x 25 | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
3/16" x 25 | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
3/16" x 25 | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
3/16" x 25 | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
3/16" x 25 | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
4LifetimeLines 1/4" x 25 316L stainless steel brake line kit with tube nuts (LTSC425KIT)
4LifetimeLines 1/4" stainless steel brake line kit tube nut types (LTSC425KIT)
4LifetimeLines 1/4" stainless steel brake line coil (LTSC425KIT)
4LifetimeLines 1/4" stainless steel brake line kit (LTSC425KIT)
4LifetimeLines 1/4" stainless steel brake line kit (LTSC425KIT)
4LifetimeLines 3/16" and 1/4" stainless steel brake line kit, two 25 coils with 32 fittings (LTSC325-425KIT)
4LifetimeLines 3/16" + 1/4" stainless steel brake line kit (LTSC325-425KIT)
4LifetimeLines 3/16" + 1/4" stainless steel brake line kit (LTSC325-425KIT)
4LifetimeLines 3/16" + 1/4" stainless steel brake line kit (LTSC325-425KIT)
4LifetimeLines 3/16" stainless steel brake line Pro kit: 25 coil, 18 fittings and 10 brake line clips (LTSC325KITPRO)
Fitting types in the 4LifetimeLines 3/16" stainless Pro kit (LTSC325KITPRO)
Union and tube nut details, 4LifetimeLines 3/16" stainless Pro kit (LTSC325KITPRO)
Single-slot 3/16" push-in brake line clip included in the Pro kit (LTBC316)
3/16" push-in brake line clip holding a brake line (LTBC316)
3/16" x 25' | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
3/16" x 25' | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
3/16" x 25' | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
3/16" x 25' | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
3/16" x 25' | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
3/16" x 25' | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
3/16" x 25' | Stainless Steel Brake Line Kit | 16 SAE Thread Fittings - 4LifetimeLines
4LifetimeLines 1/4" x 25' 316L stainless steel brake line kit with tube nuts (LTSC425KIT)
4LifetimeLines 1/4" stainless steel brake line kit tube nut types (LTSC425KIT)
4LifetimeLines 1/4" stainless steel brake line coil (LTSC425KIT)
4LifetimeLines 1/4" stainless steel brake line kit (LTSC425KIT)
4LifetimeLines 1/4" stainless steel brake line kit (LTSC425KIT)
4LifetimeLines 3/16" and 1/4" stainless steel brake line kit, two 25' coils with 32 fittings (LTSC325-425KIT)
4LifetimeLines 3/16" + 1/4" stainless steel brake line kit (LTSC325-425KIT)
4LifetimeLines 3/16" + 1/4" stainless steel brake line kit (LTSC325-425KIT)
4LifetimeLines 3/16" + 1/4" stainless steel brake line kit (LTSC325-425KIT)
4LifetimeLines 3/16" stainless steel brake line Pro kit: 25' coil, 18 fittings and 10 brake line clips (LTSC325KITPRO)
Fitting types in the 4LifetimeLines 3/16" stainless Pro kit (LTSC325KITPRO)
Union and tube nut details, 4LifetimeLines 3/16" stainless Pro kit (LTSC325KITPRO)
Single-slot 3/16" push-in brake line clip included in the Pro kit (LTBC316)
3/16" push-in brake line clip holding a brake line (LTBC316)

4LifetimeLines 316L Stainless Steel Brake Line Coil & Fitting Kit, 3/16" or 1/4" x 25'

$54.00
4.7
Rated 4.7 out of 5 stars
49 Reviews

SKU: LTSC325KIT

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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.

The 4LifetimeLines 316L Stainless Steel Brake Line Kit pairs a 25' coil of 316L stainless steel tubing with fittings (inverted flare; the 3/16" kits also include bubble-flare tube nuts), for brake, fuel and transmission line. Choose a 3/16" kit, a 1/4" kit, one of each, or the 3/16" Pro kit, which adds a union, more tube nut sizes and 10 brake line clips.

What's in the box

  • 3/16" kit: 25' coil of 3/16" 316L stainless tubing and 16 tube nuts (3/8-24 inverted, 7/16-24 inverted, M10x1.0 inverted and M10x1.0 bubble)
  • 1/4" kit: 25' coil of 1/4" 316L stainless tubing and tube nuts (7/16-24 inverted, 7/16-24 long inverted, 9/16-18 inverted and 1/2-20 inverted)
  • 3/16" + 1/4": one coil of each size (25' each) and 32 fittings
  • 3/16" Pro kit: 25' coil of 3/16" 316L stainless tubing, 18 fittings (3/8-24 inverted union; 3/8-24, 7/16-24, 1/2-20, 9/16-18 and M10x1.0 inverted tube nuts; M10x1.0 and M12x1.0 bubble tube nuts) and 10 single-slot 3/16" push-in brake line clips

Full specifications are under Specifications.

How to use it

Cut the tubing to length and deburr it, slide the tube nuts on, then flare the ends with a flaring tool suited to stainless tubing and route the line. Use a tube bender for tight bends.

Brake safety note: Use only SAE double (inverted) or ISO bubble flares on hydraulic brake lines. Single flares are not safe for brake systems.

Questions

Is the tubing pre-flared? No. It comes as a coil; you cut and flare it to fit, so you'll need a flaring tool.

Which size do I need? Match your vehicle's existing line outside diameter. If it uses both, pick the 3/16" + 1/4" option.

Can I use it for fuel or transmission line? Yes. 4LifetimeLines lists 3/16" and 1/4" stainless line for brake, fuel and transmission line.

Does it include clips or a gravel guard? The 3/16" Pro kit includes 10 brake line clips; the other options don't include clips. None include a gravel guard; 4LifetimeLines sells stainless kits with a gravel guard separately.

Warranty and support

Covered by the 4Lifetime Limited Lifetime Warranty (see 4lifetimelines.com/pages/warranty). Questions? Email hello@4lifetimelines.com or call 1 (855) 928-4024, Monday–Friday, 9:00 AM–5:00 PM ET.

Tubing material: 316L stainless steel
Tubing length: 25' per coil
Wall thickness: 0.028"
Flare compatibility: SAE 45° double (inverted) and ISO/DIN bubble flares, formed with the correct tool and to vehicle specification. Do not use single flares on hydraulic brake systems.
Applications: Brake, fuel and transmission line
Bending: Use a tube bender for tight bends
Vehicle fit: Universal (not vehicle-specific)
Corrosion Resistance: 3/5 – Stainless Steel: Strong long-term protection, great for wet/humid environments.
Warranty: 4Lifetime Limited Lifetime Warranty

Fittings per kit
3/16" kit: 16 tube nuts: 3/8-24 inverted, 7/16-24 inverted, M10x1.0 inverted, M10x1.0 bubble
1/4" kit: Tube nuts: 7/16-24 inverted, 7/16-24 long inverted, 9/16-18 inverted, 1/2-20 inverted
3/16" Pro kit: 18 fittings: 3/8-24 inverted union; 3/8-24, 7/16-24, 1/2-20, 9/16-18 and M10x1.0 inverted tube nuts; M10x1.0 and M12x1.0 bubble tube nuts. Plus 10 single-slot 3/16" push-in brake line clips (LTBC316)

Options and SKUs
3/16" x 25': LTSC325KIT
1/4" x 25': LTSC425KIT
3/16" + 1/4": LTSC325-425KIT (one coil of each size, 32 fittings)
3/16" Pro, with clips: LTSC325KITPRO (25' coil, 18 fittings, 10 clips)

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Lifetime Quality, Covered — for Life

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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.

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
4.7
Rated 4.7 out of 5 stars
Based on 49 reviews
92%would recommend this product
49 reviews
  • Rated 5 out of 5 stars
    1 year ago
    Flaring tool

    Flaring tool worked great on stainless. Not one bad flare and easy to use. Great tool

    JH
    james h.
    Flag of United States
    Verified Buyer
  • Rated 5 out of 5 stars
    1 year ago
    Thanks

    Shipping was super fast thank you!

    RG
    Robert G.
    Verified Buyer
  • Rated 2 out of 5 stars
    1 year ago
    Does not flare nicely for 37 degree

    Nice looking line. But I have to give a 2 star since this line splits when doing 37 degree single flare

    AC
    Amazon C.
  • Rated 5 out of 5 stars
    1 year ago
    GOOD QUALITY TUBING

    WILL BUY AGAIN

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

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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.

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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.