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Sierra 18-5110 Ignition Coil for Yamaha 115HP Outboard

Manufacturer

Picture for manufacturer Sierra

Part Number

18-5110
12 reviews
Sale Price

$89.81

In Stock (6)

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-5110 is a direct-fit replacement ignition coil designed for Yamaha 115HP 4-cylinder outboard engines (1985–1991). Engineered to meet or exceed OEM specifications, this coil delivers reliable high-voltage spark output to ensure consistent engine starts and smooth performance on the water.

The ignition coil plays a critical role in your outboard's ignition system—it converts battery voltage into the high-voltage pulse required to fire the spark plugs at precisely the right moment. A worn or failing coil can cause hard starting, misfires, rough idle, or unexpected engine shutdowns. The Sierra 18-5110 is a quality aftermarket solution to restore proper ignition system function.

Key Features:

  • Direct OEM-equivalent replacement ignition coil
  • Designed for Yamaha 115HP 4-cylinder outboard motors (1985–1991)
  • Meets or exceeds original equipment performance standards
  • Sold individually (quantity: 1)
  • UPC: 747730043609

Replaces OEM Part Numbers:

  • 6E5-85570-11-00
  • 6E5-85570-11
  • 6E5-85570-11-11
  • 47-5110

Replace immediately if you notice cracks in the coil housing, epoxy, or experience ignition misfires. Restoring a healthy ignition system with a quality Sierra replacement part keeps your outboard running at peak efficiency.

Products specifications

Type

Ignition Coils

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Good

Good price

need to know estimated shipping date

products looked great, but the descriptions and pictures made it extremely difficult to tell what we are purchasing. Hope we don't have to send it back!

Great prices.

cheapest online

esey to use site

so far so good

So far so good.I like the free shipping

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