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Champion 415 Copper Plus Spark Plug RN9YC

Manufacturer

Champion

<h3>Champion: A Legacy of Engine Performance</h3><p>For decades, <strong>Champion</strong> has been one of the most trusted names in engine ignition and maintenance. Born from a commitment to precision engineering, Champion has earned its reputation by delivering reliable, time-tested replacement parts that keep engines running at their best — whether on the road, on the water, or in the backyard.</p><h3>World-Class Spark Plug Technology</h3><p>Champion's story is inseparable from the spark plug. The brand helped pioneer modern ignition technology, and today its spark plug lineup remains a go-to choice for automotive technicians and DIY mechanics alike. Champion <a href="/120-champion-spark-plug-7212">spark plugs</a> are engineered to deliver consistent ignition performance across a wide range of engine types, from daily-driver commuter cars to high-demand power sport machines. Whether you're tuning up a classic V8 or maintaining a small-displacement four-cylinder, Champion offers a plug designed to match your engine's specific requirements.</p><p>Beyond the plug itself, a reliable ignition system depends on every component working in harmony. Champion's <a href="/120-champion-spark-plugs-spark-plug-boot-kit-23507">spark plug boot kits</a> provide the complete solution — protecting ignition wires and ensuring a secure, interference-free connection between the plug and the ignition system. These kits are especially popular for vehicle owners who want a thorough tune-up rather than a partial fix.</p><h3>Marine and 2-Cycle Engine Solutions</h3><p>Champion's expertise doesn't stop at automotive ignition. The brand also serves boaters and marine enthusiasts with products formulated for the unique demands of water-based engines. Champion <a href="/120-champion-2-cycle-outboard-oil-200042">2-cycle outboard oil</a> is designed to protect outboard motors running in demanding marine conditions, helping to minimize wear, reduce deposits, and extend engine life. It's a natural extension of Champion's core philosophy: give every engine — regardless of application — the quality it deserves.</p><h3>Built for Every Engine, Every Application</h3><p>What sets Champion apart is the breadth of its coverage. From passenger vehicles to boats, lawn and garden equipment to power sport machines, Champion engineers products with real-world performance in mind. The brand's catalog of over 800 products means that regardless of what you drive, ride, or operate, there's a Champion part designed to keep it running at peak efficiency.</p><p>Whether you're doing a routine tune-up or a full ignition system overhaul, Champion's combination of heritage, innovation, and comprehensive coverage makes it a brand worth turning to first.</p>

Part Number

415
06/01/2036 12:50 AM
Sale Price

$3.99

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Champion 415 Copper Plus Spark Plug (RN9YC) delivers reliable ignition performance with consistent spark and minimal radio frequency interference. This resistor-type spark plug is engineered for small engines and marine applications, featuring a copper core center electrode for excellent heat dissipation and conductivity.

Key Features:

  • RN9YC heat range and design for dependable starting and smooth operation
  • Copper core center electrode provides superior heat transfer and longer life
  • Triple-coated shell offers excellent corrosion resistance in harsh environments
  • Triple-seal assembly prevents combustion gas leakage
  • Precision-rolled threads conform to manufacturer specifications
  • SAC-9 resistor suppresses radio frequency interference to protect sensitive electronics
  • Made in the U.S.A.

The "R" designation indicates this plug includes Champion's SAC-9 RFI suppressor, a resistor made of strontium carbonate, aluminum oxide, and copper oxide powders. This suppression protects radios, navigation equipment, and other electronic systems from interference without compromising ignition performance. Consult your owner's manual to verify compatibility with your specific engine application.

Products specifications

Type

Copper Plus

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My first experience with Autoplicity has been great. One of the best prices I found for the item. Too, the company is not secretative about itself such as another parts discounter.<br><br>Autoplicity is now "bookmarked" for future purchases!

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Excellent price and quick delivery made my first purchase a great one. Will for sure be checking out Autoplicity for any future buys.

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