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MAZDA CX-9 Spark Plugs

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NGK Iridium IX Spark Plugs

NGK Iridium IX spark plugs feature an ultra-fine center electrode that's designed just thick enough to ensure the maximum durability and life of the spark plugs—and just thin enough to create an accurate and consistent spark. They represent the ultimate evolution of spark plug technology and performance. Iridium is the hardest metal used in spark plugs today—six times harder than platinum. This allowed NGK engineers to reduce the voltage requirement for a spark. Iridium IX plugs are available in more than a hundred configurations for universal and vehicle-specific applications.

4.86 out of 5 stars ( 250 )

$9.99

$11.99

NGK Ruthenium HX Spark Plugs

NGK Ruthenium HX spark plugs are designed for newer engines which demand high ignitability. Double Fine Electrode (DFE) engineering promotes spark energy concentration and ignites a wider range of air/fuel ratios, offering improved performance in rich or lean engine conditions. Order the plugs recommended for fitment on your application. Additional details: * 0.4mm Ruthenium alloy fine-wire center electrode and 0.8mm platinum fine-wire ground electrode * Trivalent metal platinum provides superior anti-corrosion and anti-seizing properties * Corrugated ribs prevent flashover * Pure alumina silicate ceramic insulator offers superior strength and better heat transfer * Copper core aids in heat removal

4.89 out of 5 stars ( 36 )

$15.99

$18.99

E3 Spark Plugs

Energy, efficiency, and ecology--that's the E3 equation! The unique patented electrode configuration of the E3 spark plugs increases the amount of combustion pressure created during each power stroke of an engine. This, of course, results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines.

4.64 out of 5 stars ( 704 )

$7.99

NGK G-Power Platinum Spark Plugs

These G-Power Platinum spark plugs deliver the power and quality that you expect from NGK. The fine pure-platinum electrode tip remains virtually unchanged and reaches self-cleaning temperatures to deliver longer durability and optimum performance. Compared to conventional plugs, G-Power plugs deliver better starts, superior acceleration, and greater fuel economy.

4.89 out of 5 stars ( 132 )

$6.99

NGK Laser Iridium High Ignitability Spark Plugs

NGK Laser Iridium High Ignitability spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, NGK Laser Iridium High Ignitability spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGK's high-grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. The Laser Iridium High Ignitability spark plugs feature raised platinum pad or platinum fine wire tip on the ground electrode for even wear in distributorless ignition systems and improved spark performance. Order the spark plugs for your application.

5.0 out of 5 stars ( 24 )

$21.99

Denso Iridium TT Spark Plugs

Denso Iridium TT spark plugs, with their unique Twin-Tip technology, have two "tips": a 0.4mm iridium center electrode, and a 0.7mm platinum ground electrode. First used with OE spark plugs for luxury and performance cars, they are the smallest mass-produced center electrodes available. They require lower voltage and feature high-ignitability, so there is less interference with spark growth (quenching) and the twin tips deliver omnidirectional ignition, unlike the flat "sandwich" ignition of other spark plugs. Denso selected iridium and engineered it with rhodium to build the most durable alloy for spark plugs. Their patented formula has the highest concentration of iridium of any spark plug and even under the most severe engine temperatures resists oxidation and voltage wear for extended periods. The superior ignition of Denso Iridium TT spark plugs means more efficiency, fewer misfires, and significantly improved combustion, optimizing power and fuel economy like never before. Order the model designed for your vehicle application. Additional features of Denso Iridium TT spark plugs include: * Revolutionary 0.4mm center electrode means significantly improved combustion and reduced misfires * Invented by Denso, Iridium TT Twin-Tip technology creates a larger flame front for more complete combustion * Precision 360 degree laser-welding technology ensures structural support for the iridium center electrode, even in the harshest combustion environments * Tested to last well beyond 100,000 miles, with minimal loss of performance, for greater lifetime savings than any plugs available today

4.56 out of 5 stars ( 16 )

$9.99

ACDelco RAPIDFIRE Performance Platinum Spark Plugs

ACDelco RAPIDFIRE platinum spark plugs fit engines that require conventional or platinum plugs—offering quicker throttle response, smoother idle, better corrosion protection, and greater longevity when compared to conventional plugs. RAPIDFIRE platinum spark plugs are available for most vehicle makes and models and several marine applications. Product features: * Ribless insulator that improves the plug-to-boot seal * Tapered and columned center wire electrode with a platinum pad that reduces the firing diameter—and helps improve the firing efficiency by concentrating and directing energy needed to fire the plug with less voltage * A platinum center electrode and platinum pad lower the ignition demand voltage and reduce possible flame kernel quenching * One-piece integral suppressor seal helps reduce radio frequency interference, meters spark plug energy to prolong electrode life, and seals against compression leakage * An expected life of 50,000 miles or better * Gapped to the engine's original factory specifications * 30-day, money-back guarantee and 3-year limited warranty

4.64 out of 5 stars ( 116 )

$10.99

ACDelco GM Genuine Parts Iridium Spark Plugs

ACDelco GM Genuine Parts Iridium spark plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. They are ACDelco's latest in spark plug technology and an exact replacement for your GM vehicle's original components. Iridium composition provides a high melting point and great strength, along with excellent wear resistance and durability. ACDelco GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles.

4.83 out of 5 stars ( 148 )

$7.99

Champion Platinum Power Spark Plugs

Champion Platinum Power spark plugs use a platinum pad welded to a nickel alloy center electrode for long life. Platinum has extremely good wear characteristics and can reduce gap growth. Champion Platinum Power spark plugs use a thin-wire center electrode with their exclusive Heat-Active alloy to reach operating temperatures quickly and maintain stable temperatures under varying engine loads. Because the plugs maintain the proper gap, the voltage needed to fire them remains consistent, reducing the chance of misfire. Get rid of those old spark plugs and try some of these Champion Platinum Power spark plugs for increased efficiency and reliability.

4.68 out of 5 stars ( 47 )

$4.99

Denso Iridium Long Life Spark Plugs

Denso Iridium Long Life spark plugs are factory-installed by a wide range of automakers and are fast becoming the standard for today's high-tech engines. Denso has created a spark plug unlike anything on the market today. Designed for durability under the most extreme conditions, Denso's patented iridium alloy is six times harder and eight times stronger than conventional platinum. You'll enjoy more horsepower, faster and easier starts, fewer misfires under heavy loads, plus better fuel economy! Order the model and options best suited for your application. Additional features and benefits of Denso Iridium Long Life spark plugs include: * 0.7mm iridium tip, dramatically improving ignitability and longevity * Platinum ground electrode for reduced wear and erosion * Endures temperatures in excess of 4,000 degrees F * Sustained performance over 100,000 miles--up to three times longer than conventional plugs * Withstands higher pressures * Tapered cut improves firing performance by reducing quenching * 360 degree laser-welding process secures center electrode

4.25 out of 5 stars ( 4 )

$21.99

ACDelco Gold Platinum Spark Plugs

ACDelco Gold platinum spark plugs are perfect for engines that run on conventional plugs, as well as newer engines that require platinum plugs. These spark plugs can provide up to 100,000 miles of service before needing replacement (service life varies with individual driving conditions.) Features: * Dual platinum tip for improved resistance to spark erosion, fouling, and corrosive combustion chamber environment * Ribless insulator that improves the plug-to-boot seal * Platinum center electrode and platinum pad that lower the ignition demand voltage and reduce possible flame kernel quenching * One-piece integral suppressor seal that helps reduce radio frequency interference, meters spark plug energy to help provide long electrode life, and seals against compression leakage * Maximum engine performance over time * Corrosion-resistant shell to keep up with the demands of any vehicle * Spark gap remains virtually unchanged during the life of the plug * Meets increased auto industry performance and reliability requirements * Available for most makes and models * 100,000-mile (160,000-kilometer) limited warranty

4.87 out of 5 stars ( 99 )

$7.99

NGK Laser Iridium Spark Plugs

NGK Laser Iridium spark plugs feature laser-welded technology. Lasers are used to pinpoint precision welds, reducing excess debris; this decreases the required voltage to bridge the spark gap. An iridium disc is welded on the center electrode and a platinum disc is welded on the ground electrode, reducing the wear rate of both surfaces and ensuring great durability and long life. These spark plugs are available for use with a variety of engine types.

4.92 out of 5 stars ( 75 )

$12.99

NGK Laser Platinum Spark Plugs

These double platinum NGK laser platinum spark plugs feature laser-welded technology. Lasers are used to pinpoint precision welds, reducing excess debris. The reduction of debris decreases the required voltage to bridge the spark gap. Platinum disks welded on the ground and center electrodes reduce the wear rate on both of these surfaces, ensuring great durability and long life.

5.0 out of 5 stars ( 19 )

$13.99

Bosch OE Platinum Spark Plugs

Bosch OE platinum spark plugs use a center electrode that's heat-fused into the extended ceramic insulator. They reach a self-cleaning temperature faster for quicker starts, smoother acceleration, and increased fuel efficiency. The plugs' tapered, V-profile, nickel-ground electrode provides improved starting in cold weather and increased fuel ignitibility. These spark plugs are available to complement a variety of engine types. Order the plugs designed for fitment with your vehicle.

5.0 out of 5 stars ( 3 )

$7.99

Bosch Double Iridium Spark Plugs

Bosch Double Iridium spark plugs unlock the performance in your engine. They're engineered to deliver both high performance and long life, representing the best of OE spark plug technology. The ultra-fine wire design and laser-welded, tapered ground electrode deliver optimum performance, while the iridium center electrode and ground electrode help it to go the distance. Bosch Double Iridium spark plug features: * OE replacement—meets or exceeds manufacturer design requirements for modern gasoline engines, providing OE fit, form, and function * OE-matched spark position for compatibility with new Gasoline Direct Injection (GDI) technology * 4 times longer service life compared to standard copper spark plugs * Nickel plated shell eliminates the need to use anti-seize to prevent corrosion * Copper-core electrode provides a broader heat range to resist pre-ignition and fouling * 360 degree continuous laser weld fuses corrosion-resistant precious metal firing pin to base, promoting durability and the longest life * Tapered ground electrode shape reduces flame shrouding for improved combustion and more power

Not Yet Reviewed

$8.99

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