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Quicksilver 864929A 4 3-Inch Dry Joint Exhaust Riser Spacer Kit FWC MerCruiser V6 V8

Manufacturer

Quicksilver

<p>Since 1950, Quicksilver has been delivering premium marine parts, accessories, and lubricants that set the standard for quality and performance on the water. As the premier supplier of Mercury Marine original-equipment parts and accessories, Quicksilver occupies a unique position in the marine aftermarket industry—it's the only marine brand manufactured and recommended by an original-equipment manufacturer.</p> <h3>Engineering Excellence Backed by Mercury Marine</h3> <p>What sets Quicksilver apart from other aftermarket brands is its direct connection to Mercury Marine's engineering expertise. No aftermarket company comes close to Quicksilver's level of research and design, and literally millions of hours have been spent on fired-engine testing and analysis. This rigorous development process ensures that every component meets the exacting standards required for marine environments, where reliability isn't just a preference—it's essential.</p> <p>Quicksilver offers the widest range of premium replacement parts and lubricants for Mercury engines and drives in the marine industry, while their expertise makes Quicksilver aftermarket parts and lubricants outstanding choices to service most major marine engine brands. Whether you're maintaining a Mercury, Yamaha, Honda, or Suzuki outboard, Quicksilver provides OEM-quality solutions that fit and function like the original components.</p> <h3>Comprehensive Product Range for Every Marine Application</h3> <p>From critical propulsion components to routine maintenance items, Quicksilver covers the full spectrum of marine parts needs. Their <a href="/200836-quicksilver-propellers-quicksilver-7456">propeller selection</a> represents decades of hydrodynamic research, offering precision-engineered designs that maximize thrust, fuel efficiency, and handling across different hull configurations and engine combinations.</p> <p>For fuel system reliability, <a href="/200446-fuel-pumps-kitscarburetor-kits-quicksilver-7456">Quicksilver fuel pumps and carburetor kits</a> deliver consistent performance even in demanding marine conditions where ethanol-blended fuels and temperature extremes can compromise inferior components. The brand's <a href="/200835-quicksilver-manifoldsriserselbows-quicksilver-7456">exhaust manifolds, risers, and elbows</a> are engineered specifically to handle the corrosive marine environment, featuring materials and coatings that resist saltwater degradation.</p> <p>Cooling system maintenance becomes straightforward with <a href="/2208-engine-water-pump-quicksilver-7456">Quicksilver water pumps</a> and impeller kits designed for easy installation and reliable operation. Regular impeller replacement is one of the most critical preventive maintenance tasks for any marine engine, and Quicksilver kits include all necessary gaskets and components for professional-grade results.</p> <p>The brand's <a href="/200382-external-engine-parts-quicksilver-7456">external engine parts</a> portfolio ensures that boat owners and marine technicians can source everything from mounting hardware to trim system components with confidence in fit and durability.</p> <h3>Quality You Can Trust</h3> <p>Quicksilver has earned a loyal following by providing the highest quality products for more than 60 years, and consumers consider it one of the most trusted brands in the markets it serves. With over 40,000 parts across 12 product lines, Quicksilver products can be found throughout the world, supporting recreational boaters, commercial operators, and marine service professionals alike.</p> <p>This commitment to quality extends beyond parts to include specialized marine lubricants, fuel additives, and maintenance products formulated specifically for the unique demands of marine engines. When you choose Quicksilver, you're buying performance, protection, and peace of mind—qualities that matter when you're miles from shore or simply want to maximize your time on the water.</p>

Part Number

864929A 4
07/15/2036 10:17 PM
Sale Price

$776.13

In Stock (8)

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Product Details

The Quicksilver 864929A 4 is an OEM 3-inch (76 mm) dry joint exhaust riser spacer kit designed exclusively for fresh water cooled (FWC) MerCruiser stern drive and inboard engines. This kit raises the exhaust riser height to help prevent water back-flow into the engine — a critical function in marine exhaust system maintenance.

Designed specifically for use with 14-degree dry joint exhaust systems, this kit is compatible with V6 and V8 MerCruiser engine applications equipped with 14-degree risers and closed cooling (fresh water cooled) configurations. It is not compatible with standard wet-joint or open cooling systems.

Kit Includes:

  • 3-inch (76 mm) exhaust riser spacer blocks
  • Block-off gaskets
  • Mounting hardware

Key Features:

  • OEM Quicksilver/Mercury Marine part — direct factory replacement
  • 3-inch (76 mm) spacer height raises riser above water level to prevent back-flow
  • Compatible with 14-degree dry joint exhaust manifold systems
  • Designed for fresh water cooled (FWC / closed cooling) engines only
  • Includes all necessary gaskets and hardware for installation
  • Backed by Mercury Marine's 1-year factory warranty against defects and workmanship

Replacing worn or corroded exhaust riser spacers is an essential part of routine marine exhaust maintenance. Annual inspection and periodic replacement helps protect the engine from water intrusion and costly internal damage.

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Easy

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The price as well as the turn time for receiving my product was great. I placed an order late Sunday evening and I have received my order by Wednesday of that week. I still can't get over how great the price was for the bike rack I ordered compared to all of the other sites out there.

Awesome so far! Hope they ship fast!

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Very happy so far

Quick, easy, reliable.

fast and simple. I would have only liked to see the shipping options before the submission of payment

Ordering was quick and easy. We would definitely do business with this outfit again.

First time on this site will give feedback after receiving product

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