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