My Account
Shopping Cart

Quicksilver 864293A02 Exhaust Manifold Conversion Kit MerCruiser 4.3L V6

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

864293A02
09/12/2036 11:03 AM
Sale Price

$320.06

2 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Quicksilver 864293A02 Exhaust Manifold Conversion Kit is an OEM Mercury Marine solution designed to convert MerCruiser MCM 4.3L V6 engines from the discontinued one-piece exhaust manifold/riser design to the modern two-piece exhaust manifold and riser system. Because the original one-piece manifolds are no longer available, this conversion kit provides the complete hardware necessary to bring affected engines up to the current two-piece configuration.

Key Features:

  • Converts 1996 and newer MCM 4.3L V6 engines from 1-piece to 2-piece exhaust manifold system
  • OEM Quicksilver part — a Mercury Marine brand engineered for precise fit and reliability
  • Includes all rubber hoses, stainless steel clamps, gaskets, and fasteners needed for installation
  • Stainless steel clamps resist corrosion in marine environments
  • Backed by Mercury Marine's 1-year factory warranty against defects in materials and workmanship

Kit Contents:

  • 2x Upper rubber tube (elbow to intermediate elbow) — 32-44358001
  • 2x Lower rubber tube for original Y-pipe — 32-807458T
  • 2x Lower rubber tube for new-style Y-pipe
  • 8x Stainless steel clamps — 54-815504372
  • 2x Gasket, manifold to riser — 27-863726
  • 12x Manifold-to-head bolt — 10-53728
  • 4x 32mm screw — 10-58640
  • 4x Split washer — 13-41471
  • 8x Riser bolt — 10-43749
  • 3x 19mm screw/pressure rod — 10-65746
  • 3x Nylon spacer — 23-806981
  • 3x Stainless steel washer — 12-35462
  • 3x Hex nut — 11-64015

Important Note: Y-pipe is not included and must be purchased separately if replacement is needed. This kit converts one engine. Refer to Mercury Marine Service Bulletin 2005-12 for complete installation guidance.

very nice web site and easy to order with good pictures, quick delivery overall had a great experience with Autoplicity

Very fast shipping plus I saved a ton of money on the same lift kit I would have purchased locally!

Cheap shipping is s welcome change from most e-comm sites.

Awesome prices and blazing fast shipping. I was very impressed with the level of email updates and communication communication. I would definitely order from them again! Order 17864

Fast &amp; painless other than filling the bank to be able to spend it.

Easy!

Had what I needed

Great product!

Good easy

Price was lower and the website was great.

Easy to use

Received Monroe MA770 air shock, fit just wonderful and the installation was easy.

Pretty simple so far

no place to put discount shipping code

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy