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Quicksilver 811573A04 Circulating Water Pump Assembly OEM MerCruiser

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

811573A04
09/15/2036 12:49 AM
Sale Price

$551.07

In Stock (5)

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Product Details

The Quicksilver 811573A04 is a genuine OEM bi-directional circulating water pump assembly designed for GM Big Block V8 marine engines used in MerCruiser and compatible sterndrive applications. This factory replacement pump ensures proper coolant circulation and engine temperature management, maintaining the performance and reliability standards set by Mercury Marine.

Key Features:

  • Bi-directional impeller — brass construction compatible with both rotational directions
  • Stainless steel shaft, pulley, and hub for durability in marine environments
  • Brass/stainless steel hardware for corrosion resistance
  • Compatible with both stamped steel and composite timing covers
  • Overall length: 7.32 inches (186mm)
  • Includes two mounting gaskets
  • Supersedes part number 811573A03

Cross-reference OEM part numbers include Mercury/MerCruiser 850454R1, 8M0113735, 67859; OMC/Johnson/Evinrude 387447, 986074; Volvo Penta 3855991, 3854118, 856609; GM 6269358, 12553848; Crusader 30102, 30109; and PleasureCraft/PCM RA057019.

As a genuine Quicksilver OEM part, the 811573A04 meets Mercury Marine's original engineering specifications, making it the trusted choice for replacing a worn or failing circulating water pump on your Big Block V8 marine engine.

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The order process was easy. I they ship out right away.

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Adding or editing shopping cart has been painfully long. For two items its taken 30 minutes to order, not to mention having to do separate the transactions.

So far it is good, we received our order in great time. I haven't installed the muffler yet, but looks like it should be the right one. Thanks

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