Exterior Components› Body Panels and Components

Raybestos Brakes

BRAKE MASTER CYLINDER

$109.27

SKU: R014 MC391568

In Stock
In Stock
Ships by Jun 15
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Raybestos MC391568 is a new brake master cylinder designed for select Buick, Cadillac, and Oldsmobile models, including the Eldorado, Riviera, Seville, and Toronado. It is constructed from durable, corrosion-resistant aluminum and includes the master cylinder cap and reservoir for proper fluid containment. The unit features two mounting holes for secure installation and has primary and secondary outlet thread sizes of 1/2-20 and 9/16-18, respectively.

It addresses common issues such as a sinking or spongy brake pedal, brake fluid leaks, and inconsistent brake pressure. Installation requires proper bleeding of the brake system and verification of mounting hole alignment.

Fitment

Fitment Guaranteed

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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.

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Specifications

BrandRaybestos Brakes
Part NumberR014 MC391568

Buy with Confidence

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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