3/16" & 1/4" Fitting Assortment | 32 SKU
3/16″ & 1/4″ SAE Brake Line Fitting Kit
Build, repair, or modify your hard-line system without hunting down individual pieces. The 4LifetimeLines® 3/16″ & 1/4″ SAE Brake Line Fitting Kit delivers every union, tee, adapter, and cap you need to create professional-grade brake, fuel, or hydraulic lines. Machined from corrosion-resistant alloy steel and finished to OEM tolerances, these fittings thread onto properly flared tubing for rock-solid, leak-free seals that meet DOT burst-pressure standards.
What’s Included
This comprehensive kit provides eight 3/16″ unions, four 1/4″ unions, four 3/16″-to-1/4″ adapters, two 3-way 3/16″ tees, two 3-way 1/4″ tees, plus matching dust caps for every open end. Live-rubber O-ring seals on the adapter backs ensure instant, maintenance-free tightness, while the precision-cut threads eliminate cross-threading and galling. To top it off, the kit also includes both SAE and metric brake line fitting gauges—so you can quickly identify line sizes and stay prepared for any job.
Precision & Reliability
Every fitting in this kit is engineered for a snug, flare-to-flare connection. When your tubing ends are properly inverted or double-flared, these SAE-standard fittings compress metal to metal for permanent seals that resist vibration, thermal cycling, and corrosive spray. You’ll eliminate drip points and bypass common failures caused by aftermarket mismatches.
Who It’s For
Whether you’re a shop fabricator routing custom brake-line loops, a restoration enthusiast rebuilding chassis-off classics, or a fleet tech maintaining salt-belt vehicles, this fitting kit delivers the hardware you need to finish jobs right—every time. Pair it with our stainless or copper-nickel tubing coils and your flaring tool of choice for a turnkey hard-line solution.
Ready to stock your shop with every SAE fitting you’ll ever need? Add the 3/16″ & 1/4″ SAE Brake Line Fitting Kit to your cart now and build leak-proof lines without compromise.
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
Spend $50. We Cover the Rest.
BUILT TO ENDURE
No Weak Points. No Compromises.
LIFETIME WARRANTY
One Purchase. Lifetime Coverage.
TRADE FRIENDLY
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The 4Lifetime Difference
Engineered to Last. Backed for Life.
Engineered to Last. Backed for Life.
When we say lifetime warranty, we mean it. Our products are built to endure & we stand behind them.
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No Corners Cut. Ever.
Quality materials. Proven craftsmanship.
Built with materials and workmanship we trust. No shortcuts.
A Smart, Risk-Free Buy
A Smart, Risk-Free Buy
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.
Straightforward. No Fine Print.
What you see is what you get.
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Backed for the Long Haul
Backed for the Long Haul
We stand behind every product.
As long as you own it, we’ve got your back.
Backed for Life
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100+ 5 star reviews
- Rated 5 out of 5 stars1 month ago👍
Great price! All good quality stuff! Fast shipping too!
Thanks You!
DDan - Rated 1 out of 5 stars3 years agoQuantity
Not enough of 1/4 fittings and some fittings only 1-2 pieces
Not worth the price
SNStuart N. - Rated 4 out of 5 stars3 years agoGood product, speedy delivery, would
Good product, speedy delivery, would recommend
TPThomas P. - Rated 5 out of 5 stars4 years agoEASY TO USE
EASY TO USE
GSGEORGE S.