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Quicksilver 816626A20 Engine to Helm Wiring Harness 20 Ft 8-Pin Marine Outboard

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

816626A20
09/11/2036 1:52 AM
Sale Price

$208.87

In Stock (10+)

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Usually delivered within 2 days

free shipping

FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Quicksilver 816626A20 is a 20-foot engine to helm wiring harness designed to connect Mercury and Mariner outboard engines to helm-mounted analog instruments and accessories. This 8-pin connector harness serves as the critical communication link between your engine and helm controls, transmitting essential data for gauges and enabling proper operation of engine functions.

Key Features:

  • 20-foot length provides flexible installation options for various boat configurations
  • 8-pin connector design ensures reliable electrical connections in marine environments
  • Enables analog helm instruments to display critical engine data including RPM, temperature, and oil pressure
  • Allows choke function to operate properly on select 8-20 HP Mercury and Mariner 4-stroke carbureted outboards
  • Manufactured to Mercury Marine OEM specifications for guaranteed compatibility and durability
  • Marine-grade construction withstands harsh saltwater and freshwater environments

Compatibility:

  • Mercury and Mariner 2-stroke outboards 6 HP and higher (USA and Belgium manufactured)
  • Mariner 2-stroke 30-40 HP models with oil injection systems
  • All Mercury and Mariner 4-stroke outboards (USA origin)
  • Force 2-stroke 40 HP and higher (1993 and newer models)
  • Mercury Jet Drive units

Installation Note: When used with 2005 and newer 8 HP and 9.9 HP 4-stroke outboards, adapter harness 892473A01 is required. Consult your owner's manual or service manual for specific application details and proper installation procedures.

As a genuine Mercury Marine Quicksilver part, this harness is engineered and tested to meet the rigorous standards expected in professional marine applications, ensuring reliable performance and long-term durability in demanding boating conditions.

Pretty awesome, said they were on back order and I wouldn&#039;t get them for 12 days. They shipped to my house in 4 days total so definitely gotta pass the torch to THMotorsports 10/10!

Thank you! Positive experience.

Good experience

Awesome

Great store!

Easy ordering

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