Standard/OE$32.81
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GeoBrakes stocks complete drum brake wheel cylinder kits for all major car, truck, and SUV makes and models, pairing an OEM-grade wheel cylinder with every seal, boot, spring, and bleeder screw required for a full hydraulic actuator replacement. Every kit is vehicle-specific, built for American road salt conditions, and ships with a 100% fitment guarantee and free delivery on orders over $99.
Standard/OE$32.81
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Standard/OE$32.24
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Standard/OE$21.97
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Standard/OE$33.94
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Standard/OE$35.20
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Standard/OE$35.66
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Standard/OE$22.06
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Standard/OE$37.36
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Standard/OE$31.35
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Standard/OE$38.80
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Standard/OE$32.47
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Standard/OE$42.59
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Standard/OE$35.66
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Standard/OE$34.25
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Standard/OE$39.57
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Standard/OE$32.67
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Standard/OE$29.25
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Standard/OE$23.84
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Standard/OE$30.74
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Standard/OE$24.88
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Standard/OE$36.84
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Standard/OE$31.55
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Standard/OE$39.52
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Standard/OE$50.36
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A drum brake wheel cylinder kit solves the most common mistake in rear drum brake service, replacing the cylinder while reusing worn boots and deteriorated seals. In American conditions, where road salt attacks rubber components and corrodes bore surfaces, a new cylinder fitted with old boots is a failure waiting to happen. A complete wheel cylinder kit from GeoBrakes ensures every hydraulic component at that wheel is renewed together, delivering a brake circuit that holds pressure reliably through the next service interval.
Contents are application-specific, but a complete kit typically includes:
Purchasing the cylinder alone and sourcing boots and seals separately introduces compatibility risk, seal material specification, boot diameter, and spring tension are all bore-specific. A GeoBrakes kit is assembled as a matched set for your exact vehicle, eliminating that risk entirely. Kit pricing is also typically more cost-effective than sourcing components individually, and combining the kit with brake shoes, drums, and hardware in a single order over $99 qualifies the full purchase for free US-wide delivery.
Reusing old boots and seals on a fresh cylinder defeats the purpose of the replacement. Deteriorated boots allow road salt and moisture to reach the bore surface immediately, accelerating the corrosion that caused the original failure. Every component in the hydraulic actuator assembly starts new when you order a complete kit.
Wheel cylinder bore diameter and seal specification must match your vehicle exactly, an incorrect bore size or wrong seal compound produces immediate hydraulic failure. Every kit in the GeoBrakes catalogue is confirmed for your year, make, model, and axle position through our vehicle selector, with both new and remanufactured cylinder options available. New cylinders are recommended for vehicles with heavy road salt exposure or where the original bore surface was corroded. Remanufactured units offer excellent value where the original bore condition was sound.
Q: Can I rebuild my existing wheel cylinder instead of replacing it?
A: A rebuild is only viable if the cylinder bore is completely free of pitting and corrosion. In American conditions, where road salt routinely damages bore surfaces, 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 in most cases.
Q: Do I need to bleed the brakes after installing a wheel cylinder kit?
A: Yes. Installing a new wheel cylinder opens the hydraulic circuit, allowing air to enter the system. After installation, the rear brake circuit must be bled at the cylinder bleeder screw to purge all air and restore a firm brake pedal. Use fresh brake fluid meeting your vehicle's specification during the bleed procedure.
Q: Should I replace wheel cylinders on both sides at the same time?
A: Yes. If one wheel cylinder 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 restores balanced hydraulic pressure and avoids a repeat service call within months.