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Quicksilver 861776A2 Exhaust Block-Off Plate Kit for MerCruiser Alpha and Bravo Stern Drives

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

861776A 2
09/15/2036 6:07 AM
Sale Price

$106.07

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Quicksilver 861776A2 Exhaust Block-Off Plate Kit is an OEM-quality component designed to seal the gimbal housing exhaust port on MerCruiser Alpha and Bravo stern drives when a through-transom exhaust system is installed. This plate ensures a proper, leak-free seal at the gimbal housing, preventing water intrusion and exhaust gases from escaping through the standard exhaust passage when the alternate routing is in use.

Important Installation Note: The block-off plate must be installed prior to engine installation for proper fitment and sealing.

Kit Includes:

  • Exhaust block-off plate
  • Attaching hardware

Key Features:

  • Genuine Quicksilver OEM part — manufactured to Mercury Marine's original equipment specifications
  • Designed specifically for use with through-transom (thru-hull) exhaust systems on MerCruiser stern drives
  • Seals the gimbal housing exhaust port to prevent water intrusion and exhaust leaks
  • Includes all necessary attaching hardware for a complete installation
  • Backed by Mercury Marine's 1-year factory warranty against defects in materials and workmanship

Quicksilver is the premier supplier of Mercury Marine original equipment replacement parts and accessories, with over 65 years of experience delivering precision-engineered marine components. Part number 861776A2 is also referenced as 861776A 2.

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