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Champion 942M Copper Plus Spark Plug RV91MC Marine

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

942M
05/27/2036 7:55 PM
Sale Price

$3.62

2 left at this price

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Usually delivered within 2 days

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Product Details

The Champion 942M Copper Plus Spark Plug (Type RV91MC) delivers a consistently focused spark with minimum radio frequency interference, making it ideal for marine applications with sensitive electronics. This R-type spark plug features Champion's SAC-9 RFI suppressor, which protects your radio and navigation equipment while maintaining reliable ignition performance.

Key Features:

  • Triple-coated shell provides excellent corrosion resistance in harsh marine environments
  • Triple-seal assembly offers industry-leading strength and durability
  • Precision-rolled threads conform to all manufacturer specifications for proper fit
  • SAC-9 RFI suppressor eliminates radio frequency interference with sensitive electronics
  • Copper core electrode for superior heat dissipation and conductivity
  • Made in U.S.A. for quality assurance

Champion's R-type plugs utilize a resistor made of strontium carbonate, aluminum oxide, and copper oxide powders to suppress RFI without compromising ignition performance. This makes the 942M an excellent choice for inboard, I/O, and outboard marine engines where electronic equipment protection is essential.

Note: Always consult your engine owner's manual to ensure proper spark plug selection for optimal performance.

Products specifications

Type

Copper Plus

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