Dual Feed Master Cylinder W/ Internal Stainless Steel Sleeve
Dual Feed Master Cylinder W/ Internal Stainless Steel Sleeve
Speedway Motors

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#91031425

Dual Feed Master Cylinder W/ Internal Stainless Steel Sleeve

  • Our stainless steel sleeved dual feed master cylinder will work with most disc/drum or disc/disc combinations
  • The stainless steel sleeve resists wear and corrosion providing a long service life
  • 3/8"-24 IFF fluid outlets accept 3/16" steel brake lines without the need for extra adapters
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Sleeve Material:

Stainless Steel

Steel

$113.99

/each

In Stock

Garage Sale alternatives: from $69.69


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Product Summary

Universal Fit, Firewall Position, Tandem Outlet Count

  • Our stainless steel sleeved dual feed master cylinder will work with most disc/drum or disc/disc combinations
  • The stainless steel sleeve resists wear and corrosion providing a long service life
  • 3/8"-24 IFF fluid outlets accept 3/16" steel brake lines without the need for extra adapters
  • Pushrod is threaded 3/8"-24 and will accept a yoke such as 91002973
  • This master cylinder is similar to those used on mid-70's Fords (Mustang, Fairlane/LTD, etc.)
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Key Specs

MFG. Part #91031425
BrandSpeedway Motors
Master Cylinder Bore Size1 Inch
Master Cylinder MaterialCast Iron
FinishNatural
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Need To Know

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Speedway Motors 91031425 Details

Brake fluid can ruin your master cylinder in just a few years. Stop the problem by using a stainless steel sleeved master cylinder. Our new sleeved dual feed master cylinder will work with most disc/drum combinations.

  • No more pitting in the bore
  • 1" bore
  • Popular 3/8"-24 inverted flare ports
  • 3/16" brake line will screw right in

Learn more about selecting the proper master cylinder for your vehicle by reading our tech article. Brake System Selection.

Speedway Motors 91031425 Specifications

KEY SPECS
MFG. Part #91031425
BrandSpeedway Motors
Master Cylinder Bore Size1 Inch
Master Cylinder MaterialCast Iron
FinishNatural
GENERAL
PositionFirewall
Brake System TypeDisc/Drum
Outlet CountTandem
Reservoir TypeIntegral
Reservoir IncludedYes
Outlet Fitting3/8"-24 IFF
Overall Width4"
Overall Height5.2"
Mounted Length6.92"
Centerline of Holes3.18"
Sleeve MaterialStainless Steel
Sold in QuantityEach
NotesWill accept 3/16" brake line. This is a manual master cylinder.

Ratings & Reviews

4.7

36 Reviews

Overall Assessment

Customers attest to the product's quality and practicality, praising the master cylinder's sturdy construction, specifically mentioning the valuable addition of a stainless steel sleeve to ensure longevity. The authenticity of the mid-70s design appeals to many, and its efficient usability is noted in its ease of installation and fit in various modes, from Ford pickups to roadsters. The fact that it works well with both disc and drum brakes offers flexibility, and clients commend the noticeable improvement in stopping power after installation. A few reviews note some missing fittings, but it doesn't detract from the overall positive feedback. The product is regarded as a great value proposition when compared to pricier alternatives, without sacrificing quality or performance.

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4.7

36 reviews

5

29

4

6

3

0

2

0

1

1

Most Liked Positive Review

5.0

Great product

Recieved this packaged well and arrived on time. Installed as a replacement master cylinder for my 23 T bucket which was leaking. Unit worked well and was easy to bleed and install. Would recommend this unit to anyone needing a replacement or new install of a master cylinder.

Most Liked Negative Review

1.0

I would not by again

Seals in piston sleeve leak

Filter by Ratings

I would buy again if needed

5.0

a year ago

J.R.

Papillion Nebraska

Verified

Replaced current master cylinder on my 1940 street rod

Would Recommend

I have used this for other builds and always perfect

5.0

a year ago

Omim123456

Santa Clarita

Verified

Used in some builds have done and perfect for under floor location.

Would Recommend

Hopefully will never have to ever replace it again!

5.0

2 years ago

BEAK

Newark, OH.

Verified

Bought this master cylinder to replace the worn cylinder that I installed on my hotrod Model A w/SBC, that I built from scratch, 20 + years ago. It was a direct replacement for the original that needed rebuilt & was leaking. The stainless steel sleeve was what sold me on this cylinder!

Would Recommend

Mid 70's look master cylinder

5.0

3 years ago

DaSkunk

Ojai,Ca.

Verified

I love the way this master cylinder looks on the firewall of my Ford F-1 pickup project. The stainless steel sleeve should ensure a long service life. Speedway's parts always deliver a great value. This one is no different.

Would Recommend

Works great on my Model A

5.0

3 years ago

777 Driver

Madison, MS

Verified

Stainless steel sleeve

Would Recommend

I 'm grateful to find these parts

5.0

4 years ago

bruce

Ottawa , Canada

Verified

easy to access parts

Would Recommend

Fit perfect under floor

5.0

5 years ago

1929 Tudor

Santa Clarita ca

Verified

So far so good. Still plumbing lines but fits better than the old style I had

Would Recommend

Great value

4.0

5 years ago

Nick m

Glendora ca

Verified

Great part for the price I purchased the stainless lined unit Haven't tested yet but out of the box it looks great can't wait to test and see if it leaks

Would Recommend

Yes

5.0

5 years ago

Don

Edmond Oklahoma

Verified

Great

Would Recommend

Perfect size

4.0

6 years ago

Racer Rob

Bremerton, WA

Verified

I bought this master cylinder to be a direct replacement for the one I got as part of a brake pedal kit years ago, but the new cylinder has different sized outlets that now required adapter fittings, not included. I love the positive feel I get with this new master cylinder and can't believe how quick it gets my roadster stopped.

Would Recommend

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Questions & Answers

24 Questions • 10 Answers

Do you have a dust boot for this master cylinder? Thank you

by 38sedan

• 2 years ago

1 answer

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Will this master cylinder work with drum brakes front and rear?

by Al

• 8 years ago

1 answer

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Is there a spec for the total stroke/travel of the piston? I am using my existing pedal/pushrod setup and I want to make sure that the piston is being fully actuated. Should the piston be "bottoming out" before the pedal hits the floor? Thank you for your time.

by Ryan

• 8 years ago

1 answer

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can this master cylinder be used with a power brake booster?

by Jim

• 9 years ago

1 answer

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does this master cylinder have proportioning valves installed? also does it come with a bleeder kit?

by Spanky

• 9 years ago

1 answer

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The stated center line of the mounting holes is 3.18" as opposed to 3.25" which is more typical. Is the stated center line correct? Thank-you.

by Mike

• 10 years ago

1 answer

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Which port goes to the front disc and will it work if it is plumb backward?

by boo

• 10 years ago

1 answer

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I have this master and would like to use it on the rod I'm building . It has "metric" GM calipers front and rear. I will use a pro portioning valve on the rear line . Will it have enough volume and pressure to function in this application ? My pedal ratio is over 6/1 with manual brakes . Thanks much for the advice !

by Kyotb8

• 10 years ago

1 answer

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Are these master cylinders available chromed plated?

by Bill

• 10 years ago

1 answer

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What is the pushrod diameter, length and thread? My current pushrod on the Total Performance T-Bucket is 4" long, 7/16 thread, 20 pitch. I need a longer one. Does the pushrod that comes with the master cylinder have 7/16 - 20 fine thread? Thanks.

by Gene

• 11 years ago

1 answer

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