Manufacturer
<p>For nearly six decades, Sierra has established itself as one of the marine industry's most trusted names in aftermarket engine and drive parts. Founded as a specialized marine parts manufacturer, Sierra has grown into a comprehensive supplier of replacement components, instrumentation, and accessories for both recreational and commercial boating applications. Operating from their 300,000-square-foot distribution center in Litchfield, Illinois, Sierra serves boat owners and marine technicians worldwide with an extensive catalog of parts engineered specifically for the harsh saltwater environment.</p><h3>Marine Engine Excellence</h3><p>Sierra's reputation was built on delivering precision-engineered internal engine components and drive system parts that meet or exceed OEM specifications. Their <a href="/7570-sierra-engine-gasket-set-5404">engine gasket sets</a> provide critical sealing solutions for inboard and outboard motors, while their <a href="/7570-sierra-engine-complete-assembly-15341">engine complete assemblies</a> offer comprehensive replacement options for major overhauls. Each component undergoes rigorous testing to ensure reliability in demanding marine conditions, from corrosion resistance to temperature cycling performance.</p><h3>Instrumentation and Monitoring Systems</h3><p>Accurate instrumentation is essential for boat operators to monitor engine health and prevent costly breakdowns on the water. Sierra's comprehensive line of <a href="/7570-sierra-gauges-200483">gauges</a> includes everything from fuel pressure and temperature indicators to voltmeters and trim gauges, all designed with marine-grade materials that withstand vibration, moisture, and UV exposure. Their <a href="/7570-sierra-tachometer-gauge-1488">tachometer gauges</a> deliver precise RPM readings critical for optimizing engine performance and fuel efficiency. Supporting these instruments, Sierra's <a href="/7570-sierra-gauge-resistor-47908">gauge resistors</a> ensure proper signal conditioning and accurate readings across various sensor types and engine configurations.</p><h3>Expanded Product Portfolio</h3><p>In 2022, Sierra significantly broadened its scope beyond traditional marine engine parts to encompass a wider range of boating accessories and even outdoor power equipment components. This strategic expansion brought established marine brands like Shields and Moeller under the Sierra umbrella, creating a one-stop resource for marine maintenance and replacement parts. The company now offers fuel systems, electrical components, battery charging solutions, and NMEA electronics alongside their traditional engine parts lineup.</p><h3>Quality Backed by Industry-Leading Warranties</h3><p>What sets Sierra apart in the crowded aftermarket marine parts market is their commitment to standing behind every component they manufacture. Their warranty coverage extends beyond simple part replacement—it includes shop labor, haul-out fees, towing charges, and related incidental costs should a warrantied part fail. This comprehensive protection reflects the company's confidence in their manufacturing processes and quality control standards. For boat owners facing repairs far from shore or mechanics working on customer vessels, this peace of mind is invaluable. Whether you're maintaining an outboard motor, rebuilding an inboard engine, or upgrading your boat's instrumentation, Sierra's decades of marine industry experience and commitment to quality make them a reliable choice for keeping your vessel running at peak performance.</p>
Part Number
$39.54
In Stock (10+)
Usually delivered within 2 days
Add To Cart
Check out with
No Hassle Returns
Live-in-stock inventory
Fitment guaranteed
The Sierra 18-5176 is a premium-quality replacement ignition coil designed specifically for Johnson and Evinrude outboard engines. This genuine Sierra aftermarket ignition coil is engineered to meet or exceed OEM specifications, providing reliable performance in harsh marine environments.
Key Features:
OEM Cross-Reference Numbers:
Replaces Johnson/Evinrude OMC part numbers: 0581685, 0581686, 0581819, 0581862, 0581997, 0581998, 0582106, 0582330, 0582366, 0583737, 0584561. Also replaces Mallory 9-23103.
Sierra Marine products are manufactured to rigorous quality standards, ensuring dependable operation and long service life for your outboard engine's ignition system.
Coil Kit: Fits 1979 Evinrude 115HP. Replaces Johnson/Evinrude OB #582366, 587737, 584561, 582106, 582330
Great website and customer service.
Serge
Easy to use site. Informative. Excellent price and shipping.
Michael H
Extremely fast shipping and delivery! I received my item within 24 hours of ordering.
Carin H
Good service good prices
shawn g
Fair price
Scott G
I will know when i put the parts on.
Phil F
.
Scott B
easy and effective. No problems. enjoyed the service.
Will
easy to use site, great price, wide choice of payment types
Chip Depew
Autoplicity is AMAZING! Purchased a set of KC 57 Series lights for the lowest price around (almost $100 less than some other retailers were asking). Shipping prices were reasonable as well and my order arrived in only three days with standard shipping! Couldn't be more impressed, and I will definitely buy from Autoplicity again!
PPCRO
Site was easy to navigate
Jeff Redecker
they were able to answer any questions i had and shipped the item out the next day. great to do business with. i will be ordering from them again.
ws6nightca
so far so good
Anthony Park
Easy site to navigate and nice prices! Installation was ad avertised-took a little lo0ndre than an hour before I was on the road!
Chuck Culpepper
So far so good
Luis Aceves
Received Monroe MA770 air shock, fit just wonderful and the installation was easy.
Randall E. Riecke
Fast service
Josh Morrison
g taylor
Add your review
Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy