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Leed Brakes 9 inch power booster, 1-1/8 inch bore master disc/drum (Zinc) 3E1A3

Leed Brakes 9 inch power booster, 1-1/8 inch bore master disc/drum (Zinc) 3E1A3
$541.99 ea
NEWARRIVING SOONEstimated Ship Date 07/26/2024 (If Ordered Today)5 Available from LEED BRAKES as of 07/16/2024
Model: 4839871
Leed Brakes power booster assemblies are shipped fully assembled. This insures proper adjustment of the pushrod between the power booster and master cylinder and proper fitment all valves, lines and brackets for a trouble-free installation.
New 9" zinc plated power brake booster, master cylinder & disc/disc proportioning valve combo. This 9" power booster is hand polished before a yellow zinc finish is applied for a top quality finish. The top quality power brake booster is designed mount directly to your factory firewall. Also included in this kits is a new 1-1/8" bore master cylinder and proportioning valve equipped to work with 4 wheel disc brake applications.
  • New unit not remanufactured
  • Includes brackets and pushrod
  • 9 inch power booster, 1-1/8 inch bore master disc/drum (Zinc)
Ships in 1 Box.
About Leed Brakes

LEED BRAKES carries a full line of drum to disc brake conversion kits, power brake booster kits, master cylinder kits and many hard to find brake accessories for your Muscle Car, Classic Truck and Street Rod.

LEED BRAKES was started by automotive enthusiasts determined to provide its customers with the highest quality automotive solutions at a fair price. Nestled in the heart of Buffalo NY, LEED BRAKES is amongst some of the largest car enthusiasts in the nation. Yes, our weather may not be ideal for 8 months of the year, but it gives us plenty of time, locked up in our garages, to reveal our custom creations in the Spring.

With gasoline running through our veins, we are dedicated to provide you with the best customer service, product quality, and speedy delivery. Our technical support staff is also on hand to answer any questions you may have about our products or your latest brake project.


Bleeder Hoses Included Yes
Booster Diaphragm Type Single
Booster Housing Diameter 9 IN
Booster Type Vacuum
Bracket Included Yes
Brake Booster Diameter 9 in.
Brake Booster Finish Zinc
Brake Booster Included Yes
Brake Booster Type Single Diaphragm
Brake Lines Included From Master Cylinder to Valve
Brake Pedal Pushrod Included Yes
Brake Pedal Rod Extension Included Yes
Grade Type Regular
Housing Material Steel
Master Cylinder Bore Size 1.125 IN
Master Cylinder Bore Size 1-1/8 in
Master Cylinder Cap Included Yes
Master Cylinder Finish Natural
Master Cylinder Included Yes
Master Cylinder Material Cast Iron
Master Cylinder Material Cast Iron
Master Cylinder Port Quantity 2
Master Cylinder Port Thread Diameter 9/16-18, 1/2-20 IN
Mounting Hardware Included No
Part Type Power Brake Booster with Brake Master Cylinder
Proposition 65 WARNING: Cancer and Reproductive Harm
Warranty Limited Warranty, See PDF TX
Warranty Time 1 YR


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Leed Brakes 9 inch power booster, 1-1/8 inch bore master disc/drum (Zinc) 3E1A3:
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