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Sierra 118-99478 CDI Adapter Cable Johnson Evinrude to Mercury

Manufacturer

Sierra

<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

118-99478
06/01/2036 7:41 PM
Sale Price

$181.53

1 left at this price

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Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 118-99478 CDI adapter cable enables diagnostics and tuning of Johnson/Evinrude outboard motors using Mercury CDI testing equipment. This marine-grade adapter cable provides the critical connection between Mercury diagnostic tools and Johnson/Evinrude ignition systems.

Key Features:

  • Allows Mercury CDI testers to interface with Johnson and Evinrude outboard engines
  • Marine-grade construction for corrosion resistance in harsh saltwater environments
  • Essential diagnostic tool for multi-brand marine service shops
  • Quality Sierra engineering ensures reliable signal transmission
  • Eliminates need for brand-specific testing equipment

This adapter cable is an invaluable tool for marine technicians and multi-brand dealerships who service both Mercury and Johnson/Evinrude outboards, providing cross-compatibility between different manufacturer diagnostic systems.

Part arrived on time. Happy customer

I'm very satisfied with my purchase for the 2nd time. I will be making more purchases in a few months.

Easy to navigate and had exactly what I wanted

Very fast and correct product!

My shopping experience was easy and found what I was looking for. Was offered a promo code that saved me 20.00. Also, was givin on the website different shipping options.

Very quick service - great products!! Highly recommend!

great job

As advertised. Quick delivery.

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