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K14-100078• Rear• Drum Brake Wheel Cylinder Kits
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GeoBrakes stocks complete drum brake wheel cylinder kits confirmed to fit the Subaru Forester, pairing an OEM-grade wheel cylinder with every seal, boot, spring, and bleeder screw required for a full hydraulic actuator replacement on your Forester. Every kit is sourced to the exact bore diameter and seal specification for the Subaru Forester, built for American road salt conditions, and ships with a 100% fitment guarantee and free delivery on orders over $99.
Standard/OE$33.53
10 items in stock
Select your vehicle to see compatible products and accurate pricing
Your Subaru Forester rear drum brakes rely on the wheel cylinder to convert hydraulic pressure into the mechanical force that pushes the brake shoes against the drum. When the wheel cylinder on your Forester leaks, seizes, or develops a soft piston seal, the rear brake circuit is compromised on that corner. A complete wheel cylinder kit from GeoBrakes restores every hydraulic component at that wheel simultaneously, delivering a brake circuit that holds pressure reliably through the next service interval on your Subaru Forester.
The most common drum brake wheel cylinder mistake is replacing the cylinder on a Subaru Forester while reusing worn dust boots and deteriorated cup seals. In American conditions, where road salt attacks rubber components and corrodes bore surfaces on the Forester, a new cylinder fitted with old boots is a failure waiting to happen. A complete wheel cylinder kit ensures every hydraulic component at that wheel is renewed together, regardless of whether the Subaru Forester has accumulated 80,000 or 180,000 kilometres of American road use.
Kit contents are specific to the Subaru Forester application and bore specification. A complete kit for your Forester includes the wheel cylinder at the OEM bore diameter for the Subaru Forester, piston cup seals preventing fluid bypass past the pistons, dust boots protecting each piston end from road salt and moisture infiltration common in American winters on the Forester, the internal spring maintaining cup seal contact under low pressure, and the bleeder screw for replacement if the original is corroded from road salt exposure on your Subaru Forester.
Wheel cylinder bore diameter and seal specification must match the Subaru Forester exactly. An incorrect bore size or wrong seal compound produces immediate hydraulic failure on your Forester. Every kit in the GeoBrakes catalogue is confirmed for the Subaru Forester year, axle position, and bore specification through our vehicle selector, with both new and remanufactured cylinder options available. New cylinders are recommended for Subaru Forester vehicles with heavy road salt exposure or where the original bore surface was corroded.
Can I rebuild the existing wheel cylinder on my Subaru Forester instead of replacing it?
A rebuild is only viable if the cylinder bore of the Subaru Forester is completely free of pitting and corrosion. In American conditions, where road salt routinely damages bore surfaces on the Forester, a rebuild kit applied to a corroded cylinder will not hold pressure long-term. A complete replacement kit is the more reliable and cost-effective solution for most Subaru Forester applications.
Do I need to bleed the brakes on my Subaru Forester after installing the kit?
Yes. Installing a new wheel cylinder on the Subaru Forester opens the hydraulic circuit, allowing air to enter the system. After installation, the rear brake circuit must be bled at the Forester cylinder bleeder screw to purge all air and restore a firm brake pedal. Use fresh brake fluid meeting the Subaru Forester specification during the bleed procedure.
Should I replace wheel cylinders on both sides of my Subaru Forester at the same time?
Yes. If one wheel cylinder on your Subaru Forester has failed or leaked, the cylinder on the opposite rear wheel has been exposed to identical conditions for the same period. Replacing both as an axle pair on the Forester restores balanced hydraulic pressure and avoids a repeat service call within months.