Help is just a click away!
Click here to chat with a Speedway Team Member
💬
Online - Chat with us!
Chat
Products to Compare (max of 3)
X
Compare These Parts
Talk to the Experts. Call 800.979.0122, 7am-10pm, everyday.
Customer Service
Since 1952
in
in
  • Expert Tech Support
  • Huge Inventory
  • Fast Shipping
Talk to the Experts. Call 800.979.0122
Shop By
Support
Account
Street Race Truck More... The Toolbox
Add to Cart
$159.99
Single 7 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore
Single 7 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore

Single 7 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore

Universal Fit, Vacuum Diaphragm Single Brake Booster Type, 7 Inch Brake Booster Diameter

12 Reviews | 12 Answered Questions
In Stock
Ships FREE
Select your vehicle to verify fitment.
Select Vehicle
Single 7 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore
Single 7 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore
Zoomed In Image
Part # 91031410
$159.99
kit
Quantity:
Add to Cart
Call to Order
Add to Buildlist
Compare

Details
What's In The Kit
Reviews
Q&A
Videos & Articles

Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Build Your Kit

You're almost there! This kit has an option or two for you to select. Let us know which options you want for your new kit.
Next
Add to Cart

Details

Brake Booster Type:
Vacuum Diaphragm Single
Brake Booster Diameter:
7 Inch
Outlet Fitting:
3/8"-24 (4)
Master Cylinder Material:
Steel
Master Cylinder Bore Size:
1-1/8 Inch
Brake Booster Material:
Steel
MFG. Part #:
91031410
Overall Length:
12.00"
Master Cylinder Port Sizes:
3/8-24
Bolt Hole Pattern:
3.38" x 3.38"
Centerline of Holes:
3.38"
Sold in Quantity:
Kit

Info

Compact for installation under floor or on firewall of almost any vehicle. Booster measures only 7" in diameter. Cast iron master cylinder has a 1-1/8" bore and is suited for disc-disc or disc-drum combinations.

Master cylinder features two 3/8"-24 inverted flare ports on each side (plugs are included for ports not in use). 

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

Notes

  1. Brake System Builder's Tip (Link)
  2. Booster Tech Tip (GIF)

Specs

  • Pushrod-to-mounting flange is 5-1/2"
  • Four bolts on 3-3/8" centers
  • Booster is 3.75" thick
  • Master cylinder combo is 11.875" from end of the master cylinder to the firewall
  • (4) qty 3/8"-24 outlet ports (2 plugs included)
  • 8" from mount to outer edge
Some parts are not legal for use in California or other states with similar laws/regulations

Related Products

What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
  • Speedway Single Diaphragm Power Brake Booster, 7 Inch, Chromate Finish
    Qty x 1
  • Power/Manual Master Cylinder, 1-1/8 Inch Bore
    Qty x 1

More Like This

Reviews

Q & A

Videos
  • After getting the control arms and drop spindles installed last time, we are dying to see what it looks like on the ground. Today we are working with the Speedway Deluxe Disc Brake Kit. Josh and Joe are on a roll!
  • Tim demonstrates the brake assembly with a Wide 5 drum brake and Speedway's new self-energizing backing plate.
  • Tim explains the process of adjusting Buick Finned Drums to fit Speedway's self-energizing backing plate assembly.

You May Also Like

Suggestions
Error
Note
Ok