Standard/OEIn stock
$12.66
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14-WC37778• Rear• Drum Brake Wheel Cylinder
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GeoBrakes carries OEM-grade drum brake wheel cylinders confirmed to fit the Buick Century, the hydraulic actuators at the top of each drum brake assembly that convert brake fluid pressure into the mechanical force that pushes the Century shoes against the drum. Available in new and remanufactured options for your Century, every cylinder is bored to OEM specifications
Standard/OE$12.66
10 items in stock
Select your vehicle to see compatible products and accurate pricing
The drum brake wheel cylinder on the Buick Century is the hydraulic component that actuates your Century drum brake shoes every time you press the brake pedal. Brake fluid pressure from the master cylinder enters the Century wheel cylinder and acts equally on two opposed pistons, pushing them outward simultaneously toward each shoe on the Buick Century. A leaking Century wheel cylinder actively bleeds hydraulic pressure from the brake circuit and contaminates the brake shoes with fluid, both of which directly compromise your ability to stop the Buick Century.
Buick Century drum brake wheel cylinders are particularly vulnerable to corrosion in American road salt conditions. Salt water penetrates the dust boots over time on the Century, attacking the cylinder bore surface. Once the Buick Century bore is pitted, new piston cup seals cannot maintain a leak-free seal. Internally corroded Century cylinders must be replaced, not rebuilt. Vehicles in high-salt urban environments often require Century wheel cylinder replacement on the same service interval as brake shoes.
GeoBrakes stocks both new OEM-specification wheel cylinders and quality remanufactured units for the Buick Century. New cylinders are the stronger choice for Century vehicles in high-corrosion environments. Remanufactured units offer excellent value for Buick Century vehicles in moderate conditions where the original bore was sound. Our vehicle selector confirms the correct Century cylinder, right bore diameter, port location, and mounting configuration, for your Century drum brake assembly before purchase.
Can I drive my Buick Century with a leaking wheel cylinder?
No. A leaking Century cylinder actively loses hydraulic pressure from the brake circuit, reducing stopping force on your Buick Century over time. Brake fluid that reaches the Century shoes renders the friction material ineffective. A leaking Buick Century wheel cylinder is an immediate safety concern that requires urgent attention.
Should I replace both wheel cylinders on my Buick Century at the same time?
Yes. If one Century cylinder has leaked or seized due to age and corrosion, the cylinder on the opposite side of the Buick Century has experienced identical conditions and is at a similar stage of deterioration. Replacing both ensures balanced hydraulic pressure on your Century and avoids a second service call within months.
Do I need to bleed the brakes on my Buick Century after replacing a wheel cylinder?
Yes. Replacing a Century wheel cylinder opens the hydraulic circuit, allowing air to enter. After installation on the Buick Century, the entire rear brake circuit must be bled to remove all air and restore a firm, consistent brake pedal on your Century.