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Quicksilver 4008935 Manifold Mounting Bolt for MerCruiser 496

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

4008935
09/12/2036 5:30 AM
Sale Price

$4.02

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

This genuine Quicksilver manifold mounting bolt is designed specifically for MerCruiser 496 big block marine engines. This OEM fastener secures the exhaust manifold to the engine block, ensuring proper sealing and optimal exhaust system performance.

Key Features:

  • Genuine Quicksilver OEM part ensures proper fit and function
  • Precision-manufactured for MerCruiser 496 MAG engines (8.1L V-8)
  • Heat-resistant construction designed for marine exhaust applications
  • Meets Mercury Marine factory specifications
  • Sold individually - verify quantity required for your application

This mounting bolt is engineered to withstand the extreme thermal cycles and corrosive marine environment typical of exhaust manifold applications. Regular inspection and replacement of manifold hardware is recommended during engine maintenance to prevent exhaust leaks and ensure reliable operation. Quicksilver products are backed by Mercury Marine's quality standards and carry a 1-year factory warranty against defects and workmanship.

Very good.

No issues. Received in timely manner

Easy to use website, good prices. Very competitive.

Easy check out

Very prompt service.

Muy bueno el servicio se lo recomiendo a mis amigos

Came in sooner than expected, and for a great price

Quick and easy

I've already recommended you to my marine industry contacts. Excellent shopping experience. Your unit price was higher than average retail for the same product, but within 10% of the rest of the market and the product was in stock, so not thrilled about the extra expense, but not hateful about it either.

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