Brakes Master Cylinders-Boosters and Components

LEED BRAKES

LEED Brakes Master cylinder kit 1 inch bore with disc/drum valve

$239.95

SKU: L028 M_3A1

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The LEED Brakes M_3A1 is a master cylinder kit designed for converting vehicles to a dual bowl disc brake master cylinder. It features a 1-inch bore and includes a proportioning valve for front disc and rear drum brake applications.

Constructed from cast iron with a natural finish, this new, not remanufactured, unit comes with a reservoir and cap. The configuration includes a left port with a side-mount proportioning valve, offering a clean, factory-look solution for enhanced braking performance.
Show original supplier description

Part #: M_3A1

New 1" bore power brake master cylinder and front disc / rear drum brake proportioning valve. This kit is a nice clean way to add a power Corvette brake master cylinder with the correct proportioning valve, mounted for that factory look.

Features:

  • New unit not remanufactured

Leed Brakes master cylinder kits are designed to give you the parts you need to convert your car to a dual bowl disc brake master cylinder and the correct valve for your application. Available in multiple bore sizes and configurations.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandLEED BRAKES
Part NumberL028 M_3A1

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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