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Arco Starting & Charging SW109 Solenoid for Mercury/Mercruiser - 12V Isolated Base

Manufacturer

Arco Starting & Charging

<h3>Nearly Six Decades of Marine Electrical Excellence</h3><p>ARCO Starting & Charging has been the trusted name in marine electrical components for nearly 60 years, setting the gold standard for OEM-quality replacement parts. Operating from their Florida facility, ARCO manufactures, tests, and warehouses every component in the USA, ensuring rigorous quality control before any part leaves their 100,000-square-foot production center. What sets ARCO apart from competitors is their commitment to testing every unit beyond normal operating conditions, using state-of-the-art computerized assembly lines and automated digital load testers to verify performance specifications.</p><p>The company's dedication to proven dependability has earned them a reputation among marine mechanics, boat owners, and commercial operators who demand reliability in challenging saltwater environments. ARCO products consistently meet or exceed OEM specifications, backed by their comprehensive warranty program that demonstrates confidence in their manufacturing processes. Their engineering team comprises industry veterans with decades of experience in rotating electrical components, providing technical expertise that translates into innovative product solutions.</p><h3>Comprehensive Marine Starting & Charging Solutions</h3><p>ARCO's product lineup addresses every aspect of marine electrical systems. Their <a href="/7236-arco-starting-charging-tilttrim-motors-201071">tilt/trim motors</a> deliver precise control for outboard and stern drive positioning, featuring corrosion-resistant construction and reliable performance in harsh marine conditions. The company's <a href="/7236-arco-starting-charging-starters-inboard-201008">inboard starters</a> and <a href="/7236-arco-starting-charging-starters-outboard-201009">outboard starters</a> utilize high-performance permanent magnet gear reduction technology, ensuring powerful cranking even in cold-start situations. Whether you're maintaining a fishing boat, pleasure craft, or commercial vessel, ARCO's extensive application catalog covers major engine manufacturers including Mercury, Yamaha, Volvo Penta, MerCruiser, and OMC.</p><p>Beyond their traditional marine engine components, ARCO has expanded into high-energy charging solutions through their Zeus product line, which includes high-output alternators in 12V, 24V, and 48V configurations, along with Bluetooth-enabled voltage regulators. This innovation addresses the growing electrical demands of modern boats equipped with electronics, navigation systems, and house battery banks. ARCO's commitment to manufacturing in America means faster availability, with over six months of inventory typically in stock, and direct technical support from the engineers who design and build their products.</p>

Part Number

SW109
06/21/2036 6:49 AM
Sale Price

$30.03

3 left at this price

delivery box

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

The Arco Starting & Charging SW109 is a heavy-duty marine solenoid specifically designed for Mercury and Mercruiser engine applications. This reliable solenoid serves as the critical switching component in your marine starting system, controlling high-current flow from the battery to the starter motor.

Key Features:

  • 12-volt operation for standard marine electrical systems
  • Isolated base design prevents unwanted ground connections and electrical interference
  • Direct replacement for Mercury and Mercruiser OEM solenoids
  • Corrosion-resistant construction for harsh marine environments
  • High-current switching capability for reliable starting performance

The isolated base configuration makes this solenoid ideal for applications where mounting flexibility is needed or where electrical isolation from the mounting surface is required. Arco Marine is a trusted name in marine electrical components, offering quality replacement parts that meet or exceed OEM specifications.

Products specifications

Replaces

89-817109A1, 89-817109A2

thanks

Thanks

So far so good

Very simple to order. Very best price I could find in the USA

Grate

The ordering process was easy and the price of the product was fair. I was; however, disappointed with one thing. I received an email from Autoplicity for 25% off shipping but it would not work when I was checking out. I called the customer service number and the gentleman was not helpful at all.

just fine, appreciate your free services I am unable to tell if I am satisfied with product as of yet.. wwait till I pull all my hair out and I will tell you..

great

Great Pricing on parts and shipping!

This has been one of the fastest checkouts I've experienced in my years of parts purchasing as a DIY'er.

BEST PRICE AROUND, HANDS DOWN. Shipping was fast and communication was impeccable. THANKS FOR THE PROFESSIONALISM.

Best price I could find. It was delivered just when I needed it. Thank you !

lowest price for backrack toolbox brackets. insanely fast ground shipping. ordered Tuesday, received Thursday afternoon.

Great prices.

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