Standard/OEIn stock
$22.70
10 items in stock
Quality For FREE Shipping
14-WC370180• Rear• Drum Brake Wheel Cylinder
Add Vehicle to Confirm Fitment
Select your vehicle to see compatible products and accurate pricing
GeoBrakes carries OEM-grade drum brake wheel cylinders confirmed to fit the Gmc Sierra 1500 Classic, the hydraulic actuators at the top of each drum brake assembly that convert brake fluid pressure into the mechanical force that pushes the Sierra 1500 Classic shoes against the drum. Available in new and remanufactured options for your Sierra 1500 Classic, every cylinder is bored to OEM specifications
Standard/OE$22.70
10 items in stock
Select your vehicle to see compatible products and accurate pricing
Standard/OE$19.01
10 items in stock
Select your vehicle to see compatible products and accurate pricing
The drum brake wheel cylinder on the Gmc Sierra 1500 Classic is the hydraulic component that actuates your Sierra 1500 Classic drum brake shoes every time you press the brake pedal. Brake fluid pressure from the master cylinder enters the Sierra 1500 Classic wheel cylinder and acts equally on two opposed pistons, pushing them outward simultaneously toward each shoe on the Gmc Sierra 1500 Classic. A leaking Sierra 1500 Classic 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 Gmc Sierra 1500 Classic.
Gmc Sierra 1500 Classic drum brake wheel cylinders are particularly vulnerable to corrosion in American road salt conditions. Salt water penetrates the dust boots over time on the Sierra 1500 Classic, attacking the cylinder bore surface. Once the Gmc Sierra 1500 Classic bore is pitted, new piston cup seals cannot maintain a leak-free seal. Internally corroded Sierra 1500 Classic cylinders must be replaced, not rebuilt. Vehicles in high-salt urban environments often require Sierra 1500 Classic 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 Gmc Sierra 1500 Classic. New cylinders are the stronger choice for Sierra 1500 Classic vehicles in high-corrosion environments. Remanufactured units offer excellent value for Gmc Sierra 1500 Classic vehicles in moderate conditions where the original bore was sound. Our vehicle selector confirms the correct Sierra 1500 Classic cylinder, right bore diameter, port location, and mounting configuration, for your Sierra 1500 Classic drum brake assembly before purchase.
Can I drive my Gmc Sierra 1500 Classic with a leaking wheel cylinder?
No. A leaking Sierra 1500 Classic cylinder actively loses hydraulic pressure from the brake circuit, reducing stopping force on your Gmc Sierra 1500 Classic over time. Brake fluid that reaches the Sierra 1500 Classic shoes renders the friction material ineffective. A leaking Gmc Sierra 1500 Classic wheel cylinder is an immediate safety concern that requires urgent attention.
Should I replace both wheel cylinders on my Gmc Sierra 1500 Classic at the same time?
Yes. If one Sierra 1500 Classic cylinder has leaked or seized due to age and corrosion, the cylinder on the opposite side of the Gmc Sierra 1500 Classic has experienced identical conditions and is at a similar stage of deterioration. Replacing both ensures balanced hydraulic pressure on your Sierra 1500 Classic and avoids a second service call within months.
Do I need to bleed the brakes on my Gmc Sierra 1500 Classic after replacing a wheel cylinder?
Yes. Replacing a Sierra 1500 Classic wheel cylinder opens the hydraulic circuit, allowing air to enter. After installation on the Gmc Sierra 1500 Classic, the entire rear brake circuit must be bled to remove all air and restore a firm, consistent brake pedal on your Sierra 1500 Classic.