Standard/OE$100.93
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GeoBrakes stocks complete brake drum kits confirmed to fit the Mercury Mariner, pairing OEM-grade brake drums at the correct inner diameter for the Mariner with matched drum brake shoes and hardware for a full rear drum brake overhaul on your Mercury Mariner in a single package. Every kit ensures drums and shoes are replaced together on the Mariner, the only way to achieve correct contact geometry and maximum service life from both components. Each kit ships with a 100% fitment guarantee and free delivery across US on orders over $99.
Standard/OE$100.93
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Standard/OE$71.85
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Transit Auto
$105.36
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Transit Auto
$152.45
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Transit Auto
$127.87
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Transit Auto
$176.06
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Transit Auto
$163.38
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Transit Auto
$174.96
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Transit Auto
$210.47
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OE Premium$88.70
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Transit Auto
$122.22
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Transit Auto
$144.72
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Transit Auto
$180.24
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A brake drum kit for the Mercury Mariner addresses the most common brake service shortcut: replacing shoes on a worn Mariner drum, or fitting new drums with glazed, worn shoes. Either combination prevents correct break-in on the Mercury Mariner. New shoes have a specific arc radius that must contact a fresh drum surface across the full lining width on your Mariner. A GeoBrakes drum kit eliminates that incompatibility by delivering matched drums and shoes confirmed for your Mercury Mariner in a single order.
The kit for your Mercury Mariner includes OEM-spec cast-iron brake drums at the correct inner diameter for the Mariner for both left and right rear wheels, drum brake shoes with OEM-grade friction lining matched to the Mercury Mariner drum bore and wheel cylinder specification, a brake hardware kit with return springs, hold-down hardware, and self-adjusters specific to the Mariner, and drum retaining hardware where required by the Mercury Mariner application.
Road salt and freeze-thaw cycles deteriorate every component in the Mercury Mariner drum brake system over the same service interval. By the time a Mariner drum is worn, the shoes are typically at or near minimum thickness, the hardware is corroded, and the wheel cylinder boots are deteriorating on your Mercury Mariner. Replacing drums and shoes alone while leaving worn springs and seized adjusters on the Mariner produces a service that underperforms within months.
Drum and shoe arc radius must match exactly for correct contact geometry on the Mercury Mariner. An incorrect drum diameter or wrong-spec shoe lining for the Mariner produces immediate uneven wear and noise. Every kit in the GeoBrakes catalogue is assembled for the Mercury Mariner, drum diameter, shoe arc, and hardware spring rates all confirmed as a matched set specific to the Mariner.
How do I know if I need a basic or full-service kit for my Mercury Mariner?
A basic kit for the Mercury Mariner is appropriate when the wheel cylinders have been recently replaced and show no signs of leaking. A full-service kit is the stronger choice during a high-mileage Mariner overhaul, particularly on American Mercury Mariner vehicles with significant winter salt exposure.
Should I replace drum kits on both rear wheels of my Mercury Mariner at the same time?
Yes. Always replace drum brake components on the Mercury Mariner as an axle set, both left and right rear, to maintain balanced braking force. Drums and shoes at different wear stages on the Mariner create uneven rear braking that pulls the vehicle to one side.
Can I install a brake drum kit on my Mercury Mariner myself?
Rear drum brake service on the Mercury Mariner is a moderately advanced DIY task. It requires removing the drum, dismantling the shoe assembly on the Mariner, correctly routing return springs, and adjusting shoes to the correct drum clearance. A service manual specific to the Mercury Mariner is essential.