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Stainless Thru-Frame Brake Line Fittings, 1-1/2 - 2 Inch

SAME DAY SHIPPING! Order within the next 10 hours 39 minutes and receive same day shipping

Specs
Sold in Quantity:
Pair
Finish:
Polished
Angle:
Straight
Material Type:
Stainless Steel
Fitting End A:
-3 AN
Fitting End B:
1/8" NPT
Overall Length:
3.16
Notes
Requires drilling a 9/16" hole in your frame rail. Inside width between nuts is 1.15"
Stainless Thru-Frame Brake Line Fittings, 1-1/2 - 2 Inch
VIDEO
Stainless Thru-Frame Brake Line Fittings, 1-1/2 - 2 Inch

Click image to enlarge

Watch the video below to learn more about the differences in brake lines, flare types and fittings you may want to consider before plumbing away on your current chassis project.

Please note the following about this product:

  • This item is sold as a pair.

Details

Reviews (31)

Q & A (8)

What's in the Box

Info

Use these 100% stainless steel fittings to eliminate unsightly tabs and clamps from your frame rails. Each fitting has -3 AN male threads on one end and 1/8" NPT female threads on the other. Fits frame rails 1-1/2" to 2" wide.

Sold in pairs.

Item Details

1/8" NPT female to -3 AN male

Customer Reviews

Rated 4.6 out of 5 by 31 reviewers.
RATING BREAKDOWN
31 reviews
5 Stars
25
4 Stars
2
3 Stars
2
2 Stars
1
1 Star
1
RECOMMEND THIS PRODUCT:

Kenny
Verified Purchaser
Tacoma, Washington

A simple and elegant solution

March 07, 2016
While contemplating a solution for getting bulkhead fittings through a 2 inch boxed frame I decided to browse the Speedway catalogue and see if they had any ideas. When I spotted the stainless brake line through frame fittings, I immediately placed the order and I couldn't be more pleased. What a cheap and simple solution. And they look great too.
Yes, I recommend this product.
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Fasteddie
Verified Purchaser
Sedalia, Mo.

Brake fittings

March 02, 2016
Puts the finishing touches to the brake system you could not have done without it.
Pros:
  • Neat Look
  • Faster Hook Up
  • Safer
Yes, I recommend this product.
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MMM
Verified Purchaser
Lakeville MINN

Thru frame brake fittings

February 07, 2016
Made and look like great quality fittings. Nice smooth internal bore,so bleeding should not be a problem as reported on some thru frame fittings.
Yes, I recommend this product.
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Sarge
Verified Purchaser
Homosassa, Fl

Perfect

December 24, 2015
Have used these before on several of my Hot Rods. They make for a neat, clean installation of lines
Yes, I recommend this product.
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Old Guy
Verified Purchaser
Verified Reviewer
Edmonton, Alberta Canda

thru frame fittings

November 09, 2015
These look professional and make it very easy to hookup the brake hoses.
No, I would not recommend this product.
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Old Guy
Verified Purchaser
Verified Reviewer
Edmonton, Alberta Canda

thru frame brake fittings

November 09, 2015
These fittings make the front assembly look professional in appearance-well made
Yes, I recommend this product.
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chuck
Verified Purchaser
loveland, co

as advertized

October 26, 2015
as advertised, good quality, fair price, delivered on time.
No, I would not recommend this product.
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Mr. Ron
Verified Purchaser
Verified Reviewer
Aurora, CO

ThruiFrame Brake Line fittings

September 08, 2015
Worked great, quality part
Yes, I recommend this product.
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Bill
Verified Purchaser
Verified Reviewer
Bradenton, FL

Worked great, just what I needed.

June 22, 2015
Perfect for 2" wide frame rails.
Pros:
  • Just The Right Length
Yes, I recommend this product.
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Kdorfner
Verified Purchaser
Verified Reviewer
DeBary, Fl.

Very handy

May 31, 2015
These fittings are very useful when running brakes on an open wheeled car with braided brake lines and they look good too.
Yes, I recommend this product.
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Page 1 of 4

Product Q&A

8 questions : 10 answers

1 answers

What is the exact length? What is the exact length from the end of threads to the base where the shaft and bolt head meet? I ordered the 2-1/4"-2-3/4" before and they stuck out from the frame further than I liked. I'm wondering if I can use these instead.

slynch
February 25, 2015

What is the exact length? What is the exact length from the end of threads to the base where the shaft and bolt head meet? I ordered the 2-1/4"-2-3/4" before and they stuck out from the frame further than I liked. I'm wondering if I can use these instead.

Answers

February 25, 2015
EricM
This thru-frame fitting is 2 3/8" long as an under-head length (meaning the round shank and threads measure 2 3/8")
1 answers

What adapter will I need to go from the -3 AN male threads to 3/8 -24 IFF that is on the hoses that came with your disc brake kit? I have hoses #617-8568 that came with the disc brake kit I bought. I would like to use the thru frame fittings but cannot seem to find an adapter for the -3 AN that the hoses will screw onto.

Stumped2
Kansas
September 28, 2014

What adapter will I need to go from the -3 AN male threads to 3/8 -24 IFF that is on the hoses that came with your disc brake kit? I have hoses #617-8568 that came with the disc brake kit I bought. I would like to use the thru frame fittings but cannot seem to find an adapter for the -3 AN that the hoses will screw onto.

Answers

September 29, 2014
EricM
The hoses you have are not compatible with these thru frame fittings, sorry the adapter fitting you refer to is not available. Those hoses are meant to be mounted to a frame bracket 91031311. If you want to use these thru frame fittings you need to use AN hoses such as 91031842.
1 answers

Has anyone reported having problems bleeding all the air from their front disc brake system using the thru the frame fittings?

tweddlefang
Chouteau, Ok, 74337
September 08, 2014

Has anyone reported having problems bleeding all the air from their front disc brake system using the thru the frame fittings?

Answers

September 09, 2014
EricM
No these fittings will not cause any issues bleeding air from your system. If you are having troubles bleeding then it is more than likely an air trap created by a line routing up and down. Try jacking the front of the car up as high as possible with the back of the car on the ground and bleed all four brakes. Then do the same only jacking up the rear with the front on the ground. If you still have issues jack the left side of the car up as high as possible with the right side on the ground and again bleed the brakes. Now do the same the right side in the air and the left on the ground. We run into air trap issues fairly often on hot rod brake systems where the master cylinder is mounted down low. This can happen to nearly any vehicle but it does seem to come up more often with low mounted master cylinders.
1 answers

Part numbers I have these through frame fittings and wanted to know the fitting numbers to go from the /8" NPT to a 3/8-24 brake line? I have the Disc Brake set p and have ordered the adaptor for the -3n to hose adaptor already

reward
coupe33
April 20, 2013

Part numbers I have these through frame fittings and wanted to know the fitting numbers to go from the /8" NPT to a 3/8-24 brake line? I have the Disc Brake set p and have ordered the adaptor for the -3n to hose adaptor already

Answers

April 22, 2013
Jason
Speedway offers part #91031831 that is 1/8" NPT male to 3/8"-24 inverted flare female to connect to existing hard line.
2 answers

HI can you tell me the width what size hole will i need to drill

kojo
bryant ar
May 09, 2011

HI can you tell me the width what size hole will i need to drill

Answers

May 17, 2014
bobonohio
I read somewhere that you need a 9/16 Dia. hole.
May 11, 2011
Jason
A 9/16" hole is required.
2 answers

Is this part used with IFF steel lines 3/16". Also What hoses would go with it ?

Super Fan
Lockport NY
August 08, 2011

Is this part used with IFF steel lines 3/16". Also What hoses would go with it ?

Answers

August 05, 2014
Pete32
This fitting has a 1/8" NPT connection on one end and an AN3 fitting on the other. To connect your 3/16" steel brake line to it you'll need a 1/8" NPT to 3/8" IFF adaptor fitting of some kind.
August 15, 2011
Jason
These fitting are used to adapt to AN style lines to the calipers. Use adaptor 91031831 to use with IFF steel lines
1 answers

what is the part number for the pair that are for 2 1/2 frames

dannychimo
modesto ,ca
March 07, 2011

what is the part number for the pair that are for 2 1/2 frames

Answers

March 09, 2011
Jason
Item #91031361 is for 2.25" - 2.75", so this would be the item you are looking for.
1 answers

Is there a T fitting for these to go from 1 line to 2 lines right and left front calipers?

james
United States
May 14, 2016

Is there a T fitting for these to go from 1 line to 2 lines right and left front calipers?

Answers

May 16, 2016
Zach
Expert
Yes you could use part number 91031836 if you wanted to use 3/8-24 IFM fittings on hard line
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