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Product Summary

Universal Fit, 7 Inch Brake Booster Diameter

  • Compact for installation under floor or on firewall of almost any vehicle
  • NEW booster measures 7" in diameter
  • Master cylinder has a 1 1/8" bore with 3/8"-24 IFF outlets on both sides of the master cylinder
  • Four bolts on 3 3/8" centers
  • Master cylinder combo is 11.875" from end of the master cylinder to the firewall

Comes as a Kit

Key Specs

MFG. Part #91031410
BrandSpeedway Motors
Brake Booster Diameter7 Inch
Master Cylinder MaterialSteel

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Details

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

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

Specifications

KEY SPECS
MFG. Part #91031410
BrandSpeedway Motors
Brake Booster Diameter7 Inch
Master Cylinder MaterialSteel
GENERAL
Brake Booster TypeVacuum Diaphragm Single
Outlet CountTandem/Both Sides
Outlet Fitting3/8"-24 (4)
Master Cylinder Bore Size1-1/8 Inch
Brake Booster MaterialSteel
Overall Length12.00"
Master Cylinder Port Sizes3/8"-24 IFF
Bolt Hole Pattern3.38" x 3.38"
Centerline of Holes3.38"
Reservoir IncludedYes
Sold in QuantityKit
Notes9103190 STEEL PORT PLUG KIT.