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Quicksilver 8M0171142 U-Joint Seal Carrier Assembly for MerCruiser Bravo Sterndrive

Manufacturer

Quicksilver

<h3>About Quicksilver</h3><p><strong>Quicksilver</strong> has been a cornerstone of the marine industry since 1950, delivering the parts, accessories, and engine care products that keep boats running at their best. A division of Brunswick Corporation and closely aligned with Mercury Marine, Quicksilver has grown into one of the most trusted names on the water — offering more than 40,000 parts across a broad range of product lines designed for both the weekend boater and the seasoned marine professional.</p><p>What sets Quicksilver apart is its unique position as the premier supplier of Mercury Marine Original Equipment replacement parts, while simultaneously serving owners of nearly every major marine engine brand. Whether your vessel is powered by Mercury, Mariner, Honda, Yamaha, Evinrude/Johnson, or Suzuki, Quicksilver produces components engineered to fit and perform like the originals. This cross-brand compatibility, combined with factory-level quality standards, is why boaters worldwide have made Quicksilver their go-to source for maintenance and repair.</p><p>The Quicksilver catalog spans the full spectrum of marine maintenance needs. At its core are <a href="/7456-quicksilver-fuel-pump-6244">fuel pumps</a> and complete fuel pump and carburetor kit solutions that keep fuel delivery systems operating reliably under demanding on-water conditions. For those needing a broader fuel system overhaul, Quicksilver&apos;s lineup of <a href="/7456-quicksilver-fuel-pumps-201310">fuel pumps</a> covers outboard and sterndrive applications alike. Above the waterline, few components are as performance-critical as the prop, and Quicksilver&apos;s extensive range of <a href="/200673-propellers-quicksilver-7456">propellers</a> — from aluminum to stainless steel — gives boaters the ability to tune their vessel&apos;s performance to their exact needs. Rounding out the drivetrain, Quicksilver also offers precision-engineered <a href="/7456-quicksilver-drives-gearcases-transoms-200346">drives, gearcases, and transom components</a> that are essential for maintaining the mechanical heart of sterndrive and inboard systems.</p><p>Quicksilver products undergo rigorous testing and engineering validation — the result of decades of R&amp;D conducted alongside Mercury Marine&apos;s own engineering teams. The brand&apos;s commitment to quality means that each part meets or exceeds OEM specifications, giving do-it-yourself boaters and marine technicians alike the confidence that a Quicksilver repair will hold up season after season. From freshwater lakes to demanding saltwater environments, Quicksilver is built for wherever your adventures take you.</p>

Part Number

8M0171142
09/15/2036 5:11 AM
Sale Price

$107.80

In Stock (10+)

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Product Details

The Quicksilver 8M0171142 U-Joint Seal Carrier Assembly is a genuine OEM replacement part designed to maintain the integrity of MerCruiser Bravo I, II, and III sterndrive systems. This carrier assembly installs in the upper gear housing and forms a critical watertight barrier that prevents water intrusion and gear oil leakage from reaching the internal components of the upper gearcase.

Over time, heat, wear, and debris exposure can degrade the original seal, allowing moisture to enter the gearcase and gear oil to escape. A compromised seal can lead to milky gear oil, corrosion, overheating, and ultimately costly gear failure. Replacing this carrier assembly as part of routine sterndrive maintenance is an effective way to protect the drivetrain and extend the service life of your Bravo outdrive.

Key Features:

  • Genuine Quicksilver OEM part — built to Mercury Marine factory specifications
  • Prevents water intrusion and gear oil leakage at the upper gear housing
  • Direct-fit replacement requiring no special tools or modifications
  • Compatible with MerCruiser Bravo I, II, and III sterndrive upper gearcases
  • Replaces legacy OEM part number 86779A1
  • Durable construction suited for harsh saltwater and freshwater marine environments

This assembly is also commonly referenced by OEM part numbers 86779A1 and 8M0171142. Recommended for inspection and replacement any time the sterndrive is serviced or whenever gear oil contamination or leaking is detected around the input shaft area.

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Prices are fair and speedy check out

all good

Found the parts I needed

lots of selection and great brands! I also really like the website design. kinda wish shipping didn't cost $21 tho...

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