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Sierra 18-6283 Outboard Starter Motor for Mercury Marine V6 DFI Engines

Manufacturer

Sierra

<h3>Sierra Marine: Over 58 Years of Aftermarket Excellence</h3><p><strong>Sierra</strong> has built a reputation as one of the most trusted names on the water, bringing more than five decades of engineering expertise to the marine aftermarket. <a href="/7570-sierra">Sierra</a> is a globally recognized manufacturer with a rich 58-year history developing aftermarket engine and drive parts primarily for the marine industry — covering everything from inboard sterndrive applications to outboard engines across a huge range of makes and models.</p><p>In 2022, the Sierra brand underwent a significant expansion, broadening its portfolio to serve both the boating sector and select land-based applications. Today, Sierra encompasses its full core product lineup alongside well-established marine brands like Shields and Moeller, giving boaters a single trusted source for a comprehensive range of parts and supplies.</p><h3>Instrumentation Built for the Helm</h3><p>Sierra is perhaps best known for its industry-leading marine instrumentation. The brand offers one of the widest selections of <a href="/7570-sierra-gauges-200483">marine gauges</a> available in the aftermarket, spanning both analog and digital formats. Whether you need a replacement fuel level indicator, oil pressure gauge, water temperature monitor, or voltmeter, Sierra engineers these instruments to deliver accurate, reliable readings in demanding on-water conditions. All gauges are built to be water-resistant, UV-protected, and corrosion-resistant — critical traits in a saltwater or freshwater marine environment.</p><p>For boaters who want a coordinated helm setup, Sierra's <a href="/7570-sierra-gauge-set-1480">gauge sets</a> make it easy to monitor all key performance metrics in a cohesive, matched style. Available in a variety of series — from the classic Lido and Amega styles to more modern configurations — these multi-function sets cover everything from RPM and speed to fuel level and trim angle in a single package.</p><p>One of the most critical instruments on any vessel, the <a href="/7570-sierra-tachometer-gauge-1488">tachometer gauge</a> tells the operator exactly how hard the engine is working. Sierra's tachometer lineup spans a wide RPM range and is designed to interface with outboard, inboard, and sterndrive gas engines. With features like scratch-resistant lenses, perimeter lighting for night visibility, and compatibility with NMEA 2000 systems on select models, Sierra tachometers are a go-to upgrade or OEM replacement for serious boaters.</p><h3>Marine Engine Oils Formulated for the Water</h3><p>Beyond instrumentation, Sierra produces a full line of <a href="/7570-sierra-engine-oil-12138">marine engine oils</a> developed specifically for the rigors of boat engine operation. From 4-stroke FC-W certified oils to full synthetic and semi-synthetic blends in a range of viscosities, Sierra's lubricants are formulated to meet or exceed the requirements of leading marine engine manufacturers. Their engine oils are engineered to reduce friction and sludge buildup, provide maximum corrosion protection, and keep engines running cleanly — whether you're navigating coastal waters or freshwater lakes.</p><h3>Why Boaters Trust Sierra</h3><ul style="list-style:disc"><li>Over 58 years of marine aftermarket manufacturing experience</li><li>Products meet or exceed OEM standards across inboard, outboard, and sterndrive applications</li><li>Industry-leading warranty on instrumentation and parts</li><li>Comprehensive catalog spanning instrumentation, engine parts, fuel systems, and electrical supplies</li><li>Expanded brand portfolio including legacy names Shields and Moeller</li></ul>

Part Number

18-6283
09/12/2036 10:27 PM
Sale Price

$268.18

In Stock (5)

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Usually delivered within 2 days

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Product Details

The Sierra 18-6283 is a direct-fit replacement outboard starter motor engineered for Mercury Marine V6 DFI and 3.0L V6 outboard engines. Built by Sierra — the world's largest supplier of premium aftermarket marine engine and drive parts — this starter delivers reliable cranking performance in demanding on-water conditions.

Sierra outboard starters are designed with spark and ignition protection to prevent ignition of fuel vapor in the bilge, and are sealed to resist water intrusion and corrosion. This unit is manufactured to meet or exceed OEM specifications, providing a cost-effective alternative to Mercury Marine OEM part 50-8331535.

Key Features:

  • Direct replacement for Mercury Marine OEM part number 50-8331535
  • Designed with spark/ignition protection for safe bilge environment operation
  • Sealed construction to prevent water intrusion and corrosion
  • Powder-coated housing for enhanced corrosion resistance
  • Tested for U.S. Coast Guard and CE compliance
  • Meets UL, SAE, and ISO standards for marine ignition protection
  • Sold individually

OEM Interchange: Mercury Marine 50-8331535

UPC: 808282126568

Sierra has over 58 years of history as a leading global manufacturer of aftermarket marine engine and drive parts, making the 18-6283 a trusted choice for boaters seeking quality and reliability without the OEM price tag.

Easy to find what I'm looking for.

quick checkout and best prices i could find

Good so far

Great price and shipping is more than reasonable.

very good thank you

Easy

better than a lot of online shopping i've done, make that most online shopping i've done and thanks for the 10% shipping discount

so far so good

So far so good. Tool was priced nicely

So far so good

Fast and easy ordering.

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