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Quicksilver 42724A3 Water Pocket Cover Assembly for MerCruiser Sterndrive

Manufacturer

Quicksilver

<h3>Quicksilver: The Marine Enthusiast&apos;s Trusted OEM Brand</h3><p>For boaters who refuse to compromise on quality, <strong>Quicksilver</strong> has been the benchmark for marine parts, accessories, and engine care products since 1950. Based in Fond du Lac, Wisconsin, Quicksilver operates as the parts and accessories brand of Mercury Marine — and that heritage is central to everything it makes. As the only marine aftermarket brand manufactured and recommended by an original-equipment manufacturer, Quicksilver brings factory-level engineering directly to boat owners, professional technicians, and weekend warriors alike.</p><p>What sets Quicksilver apart from generic aftermarket suppliers is its direct lineage to the engineers who designed the engines in the first place. Every component is engineered, tested, and manufactured with the same exacting standards as the original equipment it replaces. The result is a product line that fits right the first time and delivers the reliability boaters depend on — whether they&apos;re navigating calm inland lakes or pushing through demanding saltwater conditions.</p><p>Quicksilver&apos;s catalog spans more than 40,000 parts across 12 product lines, covering outboard and sterndrive engines from Mercury, Mariner, Yamaha, Honda, Evinrude, Johnson, Suzuki, and more. Among the most critical components in that lineup are Quicksilver Fuel Pumps, which are built to deliver factory fit and consistent fuel delivery across a wide range of outboard applications. Reliable fuel delivery is the foundation of engine performance, and Quicksilver&apos;s fuel system components are engineered to handle the demanding conditions of marine use — including compatibility with current fuel formulations.</p><p>Beyond fuel systems, Quicksilver is a go-to source for Propeller Parts &amp; Accessories that help boaters maintain and optimize their propulsion systems. From hub kits that protect both prop and gearcase to installation hardware and prop tools, these components are designed to the same tolerances as the drives they support. Proper propeller maintenance is one of the most impactful things a boat owner can do for performance, efficiency, and engine longevity — and Quicksilver makes that job straightforward.</p><p>The brand&apos;s commitment extends across lubricants, impellers, thermostats, anodes, fuel filters, oil filters, maintenance kits, and complete service packages — all engineered for the marine environment and tested to meet or exceed the standards of major engine manufacturers. Whether you&apos;re performing routine seasonal maintenance or tackling a more involved repair, Quicksilver provides the parts that restore your engine to peak operating condition.</p><ul style="list-style:disc"><li>OEM-backed engineering from Mercury Marine</li><li>Compatible with Mercury, Yamaha, Honda, Evinrude, Johnson, Suzuki, and Mariner engines</li><li>Over 40,000 parts spanning 12 product lines</li><li>Formulated and tested for freshwater and saltwater environments</li><li>Trusted by DIY boaters and professional marine technicians since 1950</li></ul><p>When reliability on the water is non-negotiable, Quicksilver delivers the peace of mind that only a true OEM-backed brand can provide.</p>

Part Number

42724A 3
09/12/2036 10:05 AM
Sale Price

$37.64

2 left at this price

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Usually delivered within 2 days

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Product Details

The Quicksilver 42724A3 Water Pocket Cover Assembly is a genuine OEM Mercury Marine replacement part designed for the upper unit water pump on MerCruiser sterndrive systems. This cover assembly seals and protects the water pocket housing in the upper drive unit, ensuring proper coolant flow routing from the water pump through the sterndrive.

This assembly is a direct factory-replacement component and is the correct solution when servicing or rebuilding the upper unit cooling system on MerCruiser R, MR, and Alpha One Generation I sterndrives.

What's Included:

  • Water pocket cover with gasket
  • Water pocket mounting screws
  • Water tube
  • Water tube rubber seal

Key Features:

  • Genuine OEM Part — Manufactured by Mercury Marine / Quicksilver to factory specifications
  • Direct-Fit Replacement — Engineered to match original equipment tolerances for a proper seal
  • Marine-Grade Construction — Designed for continuous exposure to both freshwater and saltwater environments
  • Complete Assembly — Includes cover, gasket, water tube, screws, and seal for a full service repair

Cross-Reference Part Numbers:

  • Mercury / Quicksilver OEM: 42724A3
  • Supersedes / Related: 32489, 32489A2, 54235A2
  • Sierra: 18-3219
  • Mallory: 9-78139

This is a genuine Quicksilver factory OEM part backed by Mercury Marine's standard 1-year warranty against defects in materials and workmanship.

Easy to order!

nothing

Awesome

Easy ordering. Bets price by far. Fast shipping.

service was ok

Best price fast shipping. will deffinitly order again

Good price and easy website

Good so far.

quick order

I ordered a windshield wiper fluid reservoir. It came on time and was the product I needed. It fit perfectly and works great.

it went so easy

good so far

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