Seven lengths to choose from, Mild steel construction, 0.188" tube O.D., Zinc plated to prevent corrosion, Sold as each
Speedway Motors 3/16 Inch Steel Brake Line, 12 Inch Speedway Motors
Speedway Motors 3/16 Inch Steel Brake Line, 12 Inch
Sku # 91031800-12
Mfr. Part # 91031800-12
Condition
New
Brand
Speedway Motors
Sold
Each
Details

If you choose to use inverted flare hardware on your car, Speedway can save you time, effort, and money. These 3/16" mild steel "hard" lines bend easily and smoothly with hand tools, already have a double flare on each end, have male fittings threaded 3/8"-24 installed and have a 45° inverted flare.

Double wall, copper plated steel brake line. High burst strength. Resistant to vibration and fatigue. 3/16" O.D. tubing. Each end flared with 3/8"-24 fitting. Seven different precut lengths available.

Learn more about flaring lines and how to select proper automotive fittings by reading our tech article. The Principles of Automotive Fittings. 

Now available to assist in your brake line plumbing needs, please consider the available Stainless Steel  Fittings

Specs
Material Type
Steel
Tube O.D.
0.188"
Overall Length
12"
MFG. Part #
91031800-12
Thread Pitch
3/8"-24 IFM
Finish
Zinc
Sold in Quantity
Each
Reviews

I would buy this product again

Rated
Product Rating
by Mark on March 30, 2026

Summary: Works fine. Ease of installation

Yes, I recommend this product.

Yes

Rated
Product Rating
by Rocket on September 08, 2025

Summary: I ordered the random pack because I didn't have a flaring tool. And they all happened to fit almost perfectly. I had about an inch or so on the front and back lines so I was able to make a little bigger radius and turned out fine

Yes, I recommend this product.

I would buy these things again.

Rated
Product Rating
by Tom on April 07, 2025

Summary: Building a ratrod. Everyone is curious and knowledgeable about anything I ask them about.

Yes, I recommend this product.

excellent product

Rated
Product Rating
by MR.NOBODY on August 28, 2024

Summary: good product

Yes, I recommend this product.

Will be using this on my next build.

Rated
Product Rating
by Randy on April 15, 2024

Summary: Easy to bend great product.

Yes, I recommend this product.

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Tech Support
We're here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through eBay Messaging and a knowledgeable Speedway Motors team member will be happy to help.
About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.