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Cdi Electronics 118-99510 Johnson Evinrude Esa Interrupter Switch & Harness

Manufacturer

Cdi Electronics

<h3>Trusted Marine Ignition Solutions Since 1982</h3><p>CDI Electronics has earned its reputation as a leading provider of marine ignition components through decades of hands-on experience and engineering innovation. Founded in 1982 as Rapair Incorporated, the company initially focused on repair services for outboard ignitions, gaining invaluable insight into the most common failure points in marine electrical systems. This diagnostic expertise became the foundation for their product development philosophy when the company began to design, develop and manufacture their own line of replacement ignition components under the brand name of CDI Electronics in 1995.</p><p>Designed and manufactured in Huntsville, Alabama, CDI Electronics products represent a cost-effective alternative to OEM components without sacrificing quality or reliability. The brand's extensive catalog addresses the critical electrical needs of marine engines, from individual replacement parts to complete diagnostic solutions that help technicians troubleshoot complex ignition problems efficiently.</p><h3>Comprehensive Ignition Repair Components</h3><p>The heart of CDI Electronics' product line lies in their <a href="/7290-cdi-electronics-ignition-repair-parts-200570">ignition repair parts</a>, which encompass everything from switch boxes to trigger assemblies. These components are engineered to address the harsh marine environment where corrosion, vibration, and moisture can compromise electrical performance. Their <a href="/7290-cdi-electronics-voltage-regulators-201148">voltage regulators</a> play a crucial role in maintaining stable electrical output across varying RPM ranges, protecting sensitive ignition systems and charging batteries reliably.</p><p>Understanding that a strong spark is fundamental to engine performance, CDI manufactures precision <a href="/7290-cdi-electronics-direct-ignition-coil-10214">direct ignition coils</a> designed to deliver consistent high-voltage output. The brand also produces specialized <a href="/7290-cdi-electronics-alternator-harness-10080">alternator harnesses</a> that connect charging systems while withstanding the temperature extremes and flexing stresses encountered in engine compartments. For marine mechanics working on sterndrive applications, CDI offers specialized <a href="/7290-cdi-electronics-outdrive-tools-200752">outdrive tools</a> that simplify installation and service procedures.</p><h3>Advanced Diagnostic Technology</h3><p>Beyond replacement parts, CDI Electronics has developed the Marine Engine Diagnostic System (M.E.D.S.), an easy-to-use advanced software package specifically developed for troubleshooting marine engines. This diagnostic platform works with most major outboard brands, giving technicians a unified tool for reading engine data, identifying active faults, and running systematic tests. The M.E.D.S. system represents CDI's commitment to not just selling parts, but empowering the marine service industry with professional-grade diagnostic capabilities.</p><p>Whether you're maintaining a tournament bass boat, servicing commercial fishing vessels, or keeping a family runabout running smoothly, CDI Electronics provides the ignition components and diagnostic tools that marine engines depend on. Their products reflect more than four decades of learning what works in real-world marine applications, making them a trusted choice for do-it-yourself boaters and professional marine technicians alike.</p>

Part Number

118-99510
05/31/2036 10:47 PM
Sale Price

$177.56

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Product Details

The CDI Electronics 118-99510 is a replacement ESA (Electronic Spark Advance) interrupter switch and harness assembly designed specifically for Johnson and Evinrude outboard motors. This critical ignition component controls the electronic spark advance system, ensuring optimal engine timing and performance.

Key Features:

  • Direct replacement for Johnson/Evinrude ESA interrupter switch and harness
  • Controls electronic spark advance for proper ignition timing
  • Complete assembly includes switch and wiring harness
  • Manufactured to OEM specifications for reliable fit and function
  • Essential component for maintaining smooth engine operation

This interrupter switch is a vital part of the ESA system, which automatically adjusts ignition timing based on engine speed and load conditions. Proper function of this component ensures optimal fuel efficiency, smooth acceleration, and reduced engine stress.

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