7" Universal Brake Booster & Cast Iron Master Cylinder, 1-1/8" Bore

PRODUCT OVERVIEW

This 7" universal brake booster and cast iron master cylinder combo features a compact single diaphragm design with a 1-1/8" bore. The booster is zinc plated for corrosion resistance and a durable finish, suitable for firewall or under-floor installation on a wide range of custom applications.

FEATURES

• 7" diameter single diaphragm brake booster
• Heavy-duty cast iron master cylinder with 1-1/8" bore
• Zinc plated booster for durability and rust prevention
• Suitable for disc-disc or disc-drum brake setups
• Compact design for firewall or under-floor mounting
• Premium quality aftermarket replacement component

SPECIFICATIONS

• Condition: 100% brand new
• Type: 7" brake booster & master cylinder combo
• Booster outside diameter: 7"
• Booster thickness: 3.75"
• Master cylinder bore: 1-1/8"
• Four-bolt mounting pattern on 3-3/8" centers
• Pushrod-to-mounting flange length: 5-1/2"
• Overall combo length: approx. 11.875" from firewall to end of master cylinder
• Distance from mount to outer edge: 8"
• (4) x 3/8"-24 outlet ports with 2 plugs included
• Warranty: 1 year (manufacturer/merchant terms may apply)

VACUUM & INSTALLATION NOTES

• Requires a strong and stable manifold vacuum supply to the booster
• Typical manufacturer requirement: 18–20 inHg of vacuum
• Engines with radical camshafts may not provide sufficient vacuum
• A 12 V brake vacuum pump may be required if vacuum is insufficient
• Professional installation is recommended; verify compatibility with your braking system before purchase

PACKAGE CONTENTS

• 1 x 7" brake booster
• 1 x cast iron master cylinder (1-1/8" bore)
• Outlet port plugs as specified

FITMENT NOTICE

No specific vehicle compatibility data is provided for this universal unit. Please measure and confirm mounting pattern, pushrod length, port sizes, and brake system configuration before ordering.