As a tough and reliable workhorse, your Sierra provides you with excellent performance and power. You also need that muscle in your braking system, and the Sierra brake master cylinder plays a critical role in stopping your truck on a dime.
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The brake master cylinder for GMC Sierra contains the hydraulic fluid that flows through the brake lines to the calipers on each wheel. The system is vacuum-sealed to create the pressure, so while a leak allows essential fluid to escape, it also ruins your ability to stop. When you perform routine maintenance, inspect the area around the master cylinder for leaks, and shop for GMC Sierra replacement master cylinders at AutoAnything to save money and enjoy our 1-Year, Lower Price Guarantee.