Product Summary

Universal Fit, Adapter Fitting Fitting Type, Brass

  • This inverted flare adapter converts from one size of male thread to a different size of female thread allowing for connection of common 3/16" or 1/4" brake lines
  • Commonly used on master cylinders, proportioning valves, wheel cylinders, etc.
  • The 7/16", 1/2", and 9/16" versions reduce down to 3/8"-24 inverted flare female allowing for connection of a 3/16" brake line
  • The 3/8" version has 7/16"-24 inverted flare female threads allowing for connection of a 1/4" brake line
  • Choose the male thread size desired
See more details

Key Specs

MFG. Part #9103183-7/16
Fitting TypeAdapter Fitting
AngleStraight
Fitting End A7/16-24 I.F. Male
Fitting End B3/8-24 I.F. Female
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 9103183-7/16 Details

Brass adapters. Select from:

  • 3/8"-24 IFM to 7/16" - 24 IFF
  • 7/16"-24 IFM to 3/8" - 24 IFF
  • 1/2"-20 IFM to 3/8" - 24 IFF
  • 9/16"-18 IFM to 3/8" - 24 IFF

Item Details

Note: "3/8" size is a 3/8"-24 IFM to 7/16"-24 IFF and the "7/16" size is 7/16"-24 IFM to 3/8"-24 IFF

Stainless Steel Male Inverted Flare Brake Line Tube Nuts for 3/8", 7/16", 1/2", 9/16" and 5/8" thread applications

Stainless Steel Male Inverted Flare Brake Line Tube Nuts for 3/8", 7/16", 1/2", 9/16" and 5/8" thread applications

Speedway Motors 9103183-7/16 Specifications

KEY SPECS
MFG. Part #9103183-7/16
BrandSpeedway Motors
Fitting TypeAdapter Fitting
AngleStraight
Fitting End A7/16-24 I.F. Male
Fitting End B3/8-24 I.F. Female
Thread Pitch3/8"-24 & 7/16"-24
Material TypeBrass
FinishNatural
GENERAL
Inside Diameter0.120"
ColorBrass
Sold in QuantityEach

Ratings & Reviews

4.8

57 Reviews

Overall Assessment

Customers greatly appreciated the product for its high quality, practicality, and accurate fitting. They praised the product's ability to adapt brake hoses and lines for various models, including early Ford drum wheel cylinders and modern brake hoses, providing a perfect fit for both a 1/4" steel brake line and a Wilwood proportioning valve. It was deemed essential for projects involving hydraulic brakes, disc brake conversion, and other brake system modifications. The product was also noted to be particularly useful in hard-to-find fittings and adapters situations, proving to be a reliable solution. Furthermore, customers lauded the product's durability, and many declared they would repurchase if needed. Compared to competitors' products, our fitting was preferable in terms of usability and quality, reinforcing customer satisfaction and trust. The adapter outperformed others in its category with its superior functioning, making it a recommended choice for all related brake system needs.

4.8

57 reviews

5

49

4

5

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Most Liked Positive Review

5.0

Problem solver!

I had ordered a replacement brake line from another firm, installed it, and then discovered they had put the wrong line fitting to fit my proportioning valve. Rather than removing the line and sending it back. I started looking for an adapter. I remembered seeing these in Speedway's catalog and found that I needed 2 to do the job. The adapters were well made and were easy to install, (and did not leak!).

Most Liked Negative Review

3.0

I would buy again

Used to install the residual pressure (10 psi) valve in the rear brakes.

Filter by Ratings

Brake line fitting

5.0

2 months ago

Chalky

New Zealand

Verified

Got this to fit the back of a combination valve. It's a good fit.

Would Recommend

Good Adapter for brake lines

5.0

4 months ago

CJ

Lyman, WY

Verified

This adapter worked perfect for 69 k10 brake lines as i changed them from rubber hoses to braided steel lines

Would Recommend

Just what we needed

5.0

4 months ago

MSM

Edinburg TX

Verified

Excellent

Would Recommend

Works as it should

5.0

5 months ago

Farnster

Connecticut

Verified

I used it to adapt a 1/8" brake prop valve to 3/16" line. Easy peasy.

Would Recommend

Yes I'd but again

5.0

8 months ago

Ape

Indiana

Verified

Worked perfect

Would Recommend

Good product but did not work for the application I needed

3.0

a year ago

gkr23

Manchester Township NJ

Verified

was trying to use as a brake line adapter but the male and female sizes were backwards

Would Recommend

Didn't use

3.0

a year ago

Bob

Az.

Verified

Good fitting didn't use

Would Recommend

Yes

4.0

a year ago

40 deluxe

Ca

Verified

Worked great

Quality Parts

5.0

a year ago

79 F-250

Billings Mt

Verified

Fast shipping and the part worked great

Would Recommend

Hard to find fittings

5.0

2 years ago

James

West Virginial

Verified

I was able to find difficult to find fuel system adapter fittings and they work great.

Would Recommend

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Showing 10 of 57 reviews

Questions & Answers

3 Questions • 3 Answers

Does this fitting work with a 1/4" brake line? Doesn't say in the description

by Stan

• 7 years ago

1 answer

Can I put these on 3/16" brake line such as (91031810) and go strait into my master cylinder, or do I need to add a 3/8 24 inverted flare nut?

by Luke

• 10 years ago

1 answer

is the male end 3/8-24 and the female end 9/16-18 and 1/2-20 on each of them?

by frank l

• 15 years ago

1 answer

3 of 3 questions shown

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