Product Summary

Universal Fit, Union Coupler Fitting Fitting Type

  • Couple two brake lines together with these handy fittings
  • 3/8"-24 female to female thread
  • Brass
  • Universal Fit
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Key Specs

MFG. Part #91031832
Fitting TypeUnion Coupler Fitting
AngleStraight
Fitting End A3/8-24 I.F. Female
Fitting End B3/8-24 I.F. Female
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Need To Know

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Speedway Motors 91031832 Details

Couple two brake lines together with these handy fittings. 3/8"-24 female to female thread. Brass.

Speedway Motors 91031832 Specifications

KEY SPECS
MFG. Part #91031832
BrandSpeedway Motors
Fitting TypeUnion Coupler Fitting
AngleStraight
Fitting End A3/8-24 I.F. Female
Fitting End B3/8-24 I.F. Female
Thread Pitch3/8"-24
Material TypeBrass
FinishNatural
GENERAL
ColorBrass
Sold in QuantityEach
Outlet Fitting3/8"-24 I.F. Female
Inlet Fitting3/8"-24 I.F. Female

Ratings & Reviews

4.6

15 Reviews

Overall Assessment

Our brake line couplers are praised for their reasonable price, high quality and practicality. Many customers find them useful for custom brake line works and updating brake systems. Their ease of installation is noted as a significant advantage. A comparison to local auto parts store finds our product to be more cost-effective. Some reported issues with leaks and difficulty of use with double flared tubing, however, many say these couplers are ideal in terms of build and application, making it a frequent recommendation among automotive enthusiasts and professionals.

4.6

15 reviews

5

12

4

2

3

0

2

0

1

1

Most Liked Positive Review

5.0

These couplers worked great!

1. I used the couplers to connect brake lines together to get the length I needed. 2.You only have to use standard tools to get the job done. 3. Sometimes I would round the corners of the couplers, but, only on the ones where the coupling was in a hard position to reach with a straight combination wrench.

Most Liked Negative Review

1.0

leaked

Was using with 45 degree double flared tubing and could not get these fittings to stop leaking. Even reflaring the tubing didn't work. Tightned one so much to stop leakage, I stripped the threads in the union coupler. Bought a replacement set @ my local auto supplier that were heavier (needed to use a 12 mm wrench on them compared to 7/16" on these) The new ones appeared to have a slightly larger center hole and a bigger flared surface inside. Installed them and had no leakage.

Filter by Ratings

Just what I needed.

5.0

3 months ago

Decky 69

Leland NC

Verified

Used fitting to hook up hydro boost power brake.

Would Recommend

Recommended

5.0

a year ago

Jomama

Bourbon Mo

Verified

Brake line union, it works fine, no leaks

Would Recommend

I would and will order these and other parts from Speedway

5.0

a year ago

Tom

Edmond Oklahoa

Verified

I used these to build a custom brake system on Mr 1929 model a rat rod. They worked perfect. And shipping was quick. I'm very pleased with all the parts I've gotten from Speedway. Thank you all.

Would Recommend

I would buy this item again.

5.0

6 years ago

Big Ed.

Grass Valley Ca.

Verified

build custom brake lines.

Would Recommend

Great for coupling brake lines

5.0

6 years ago

Flick

Bennington, NE

Verified

Great coupler for the price. Make sure you know what flares your lines are to get the right couplers

Would Recommend

I would buy this product again.

5.0

7 years ago

Chuck

Brownsville, PA.

Verified

When Changing the circuit within a Brake System these can be very helpful.

Would Recommend

Good brake parts

5.0

7 years ago

Mike

Greenville, alabama

Verified

Some times you need help with parts and here you can find it.

Would Recommend

Yes: makes install easy

5.0

8 years ago

POP48

Bessemer city, N.C.

Verified

Good quality, Will work great

Would Recommend

Brass union

4.0

10 years ago

Mike

Bailey CO

Verified

Needed to fill cart for free shipping.

Would Recommend

very handy parts to have on hand.

5.0

10 years ago

bondo Bob

Cottonwood,Ca

Verified

I like to keep extra ones in my shop...they are very handy if you do brake line work.

Would Recommend

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Questions & Answers

1 Question • 1 Answer

is this available in 3/16

by doug

• 9 years ago

1 answer

1 of 1 questions shown

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