Standard/OEIn stock
$12.52
10 items in stock
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14-WC37048• Rear• Drum Brake Wheel Cylinder
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GeoBrakes carries OEM-grade drum brake wheel cylinders confirmed to fit the Checker Marathon, the hydraulic actuators at the top of each drum brake assembly that convert brake fluid pressure into the mechanical force that pushes the Marathon shoes against the drum. Available in new and remanufactured options for your Marathon, every cylinder is bored to OEM specifications
Standard/OE$12.52
10 items in stock
Select your vehicle to see compatible products and accurate pricing
The drum brake wheel cylinder on the Checker Marathon is the hydraulic component that actuates your Marathon drum brake shoes every time you press the brake pedal. Brake fluid pressure from the master cylinder enters the Marathon wheel cylinder and acts equally on two opposed pistons, pushing them outward simultaneously toward each shoe on the Checker Marathon. A leaking Marathon 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 Checker Marathon.
Checker Marathon drum brake wheel cylinders are particularly vulnerable to corrosion in American road salt conditions. Salt water penetrates the dust boots over time on the Marathon, attacking the cylinder bore surface. Once the Checker Marathon bore is pitted, new piston cup seals cannot maintain a leak-free seal. Internally corroded Marathon cylinders must be replaced, not rebuilt. Vehicles in high-salt urban environments often require Marathon 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 Checker Marathon. New cylinders are the stronger choice for Marathon vehicles in high-corrosion environments. Remanufactured units offer excellent value for Checker Marathon vehicles in moderate conditions where the original bore was sound. Our vehicle selector confirms the correct Marathon cylinder, right bore diameter, port location, and mounting configuration, for your Marathon drum brake assembly before purchase.
Can I drive my Checker Marathon with a leaking wheel cylinder?
No. A leaking Marathon cylinder actively loses hydraulic pressure from the brake circuit, reducing stopping force on your Checker Marathon over time. Brake fluid that reaches the Marathon shoes renders the friction material ineffective. A leaking Checker Marathon wheel cylinder is an immediate safety concern that requires urgent attention.
Should I replace both wheel cylinders on my Checker Marathon at the same time?
Yes. If one Marathon cylinder has leaked or seized due to age and corrosion, the cylinder on the opposite side of the Checker Marathon has experienced identical conditions and is at a similar stage of deterioration. Replacing both ensures balanced hydraulic pressure on your Marathon and avoids a second service call within months.
Do I need to bleed the brakes on my Checker Marathon after replacing a wheel cylinder?
Yes. Replacing a Marathon wheel cylinder opens the hydraulic circuit, allowing air to enter. After installation on the Checker Marathon, the entire rear brake circuit must be bled to remove all air and restore a firm, consistent brake pedal on your Marathon.