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ARCO 12V Starter Solenoid for Mercury & MerCruiser – Isolated Base | SKU 57-SW097

Original price $67.59 - Original price $67.59
Original price
$67.59
$67.59 - $67.59
Current price $67.59
Item locally warehoused

Free returns on all eligible orders

You have 30 days to request a return. All sale items are final sale.

ARCO 12V Starter Solenoid for Mercury & MerCruiser – Isolated Base

A direct-replacement 12-volt starter solenoid with an isolated base for Mercury outboard and MerCruiser stern-drive engines. The solenoid is the electrical switch that delivers high-current power from the battery to the starter motor when you turn the key. When it fails, the engine won’t crank β€” or you’ll hear a single click with no starter engagement. This ARCO unit restores full starting function with a direct OEM-equivalent fit and no wiring modifications required.

Features

  • 12-volt, isolated base design
  • Direct replacement for Mercury and MerCruiser starter solenoid applications
  • OEM-equivalent fit β€” no wiring modifications required
  • Built for reliable performance in marine electrical environments

Compatible Applications

  • Mercury outboard engines requiring a 12V isolated base starter solenoid
  • MerCruiser stern-drive engines requiring a 12V isolated base starter solenoid
  • Verify fitment using your existing OEM part number before ordering

Pairs Well With


Parts Desk Insights

Best suited for Mercury outboard and MerCruiser owners replacing a failed 12V isolated base starter solenoid. The isolated base design is required on engines where the solenoid mounting surface is not grounded to the engine block β€” using a non-isolated solenoid on these engines will cause electrical faults. We carry several Mercury/MerCruiser isolated base solenoid variants (SW054, SW058, SW058HD, SW097, SW109); confirm your existing OEM part number to select the correct unit for your application. If you’re unsure, contact us with your engine model and year and we’ll help identify the right fit.

Shipping information

In-stock and OEM parts: ship same or next business day.

Locally warehoused items: ship within 1-3 business days.

Special-order items: timeline confirmed after order.

Returns & warranty

Returns & Satisfaction Guarantee

We stand firmly behind the quality of every product we sell. Your confidence matters to us β€” and we back it with a straightforward 30-Day Satisfaction Guarantee.

If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.

To qualify for a return:


  • Item must be in new, unused condition

  • Product must be in its original packaging

  • All parts, components, hardware, manuals, and accessories must be included

  • Packaging must be undamaged and suitable for resale

Important:

Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.

We are serious about product integrity β€” and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.

For return authorization, please contact our support team before shipping anything back.

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