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Denso Iridium Power Spark Plugs

Denso Iridium Power spark plugs feature a 0.4mm iridium center electrode and best demonstrate their performance improvement during acceleration. The world's smallest center electrode and specially shaped ground electrode deliver maximum spark energy while withstanding temperatures greater than 4000 degrees F. These features combine to achieve higher ignitability and require lower spark voltage than ever before. As a result, acceleration improves in comparison with normal plugs. To increase ignitability, the flame kernel produced by the spark must be able to grow unobstructed. Normally, this can be accomplished by widening the spark gap. However, this causes spark voltage to increase, which has the opposite effect. Iridium Power plugs use Denso's patented U-Groove ground electrode to achieve maximum ignitability while minimizing required voltage. These spark plugs are available for a wide range of specific applications, including cars, trucks, vans, ATVs, UTVs, scooters, street and off-road motorcycles, personal watercraft, and snowmobiles. Order the model designed for your vehicle. Key features and benefits of Denso Iridium Power spark plugs include: * Patented 360 degree laser-welding assembly process * Unsurpassed center electrode durability * Available for many performance and power sports applications * Improved spark ignition for maximum combustion, even with lean air-fuel mixtures

4.91 out of 5 stars ( 11 )

$13.99

APR Iridium Pro Spark Plugs

Featuring one of the strongest available materials for this type of product, APR Iridium Pro spark plugs help provide an ideal upgrade for tuned engines. They run cooler, resist pre-ignition, last longer than other materials with higher melting points, and require less voltage to produce a strong spark. The electrode is harder and stronger than other materials; can dissipate heat more easily; and is better protected from melting, cracking and other limitations found with standard models. These plugs are designed for use on tuned and high-performance vehicles that benefit from a 'cold' plug. They also pair nicely with APR ignition coils, where applicable. Order the APR Iridium Pro spark plugs recommended for your vehicle. Other features include: * Heat range 9 (similar to Bosch 3, Brisk 10, Denso 27, and NGK 9 ranges) * Melting point is higher than platinum (38 percent), copper (125 percent) and silver (152 percent) * Available in non-projected and projected insulator designs * Optimized electrode design for hard-to-ignite fuels (ethanol, etc.)

Not Yet Reviewed

$29.95

Clearance

Champion Iridium Spark Plugs

Champion iridium spark plugs have a stabilizing effect on ignition voltage, as well as excellent wear characteristics. They're quickly becoming the technology of choice for engine manufacturers worldwide. These plugs feature a fine-wire iridium center electrode that's laser-locked to the center electrode, and a platinum V-trimmed ground electrode to ensure maximum life and erosion resistance. They come with their exclusive Heat-Active alloy to reach operating temperatures quickly and maintain stable temperatures under varying engine loads. The plugs will deliver a consistently focused spark that provides the highest level of engine performance possible, regardless of engine type or ignition. Order the model designed for your vehicle application.

4.96 out of 5 stars ( 46 )

$20.99

$8.50

Bosch EVO Spark Plugs

Bosch EVO spark plugs are engineered to ensure reliable ignition throughout their long service life, even under extreme conditions in modern engines. Thanks to an improved insulator design and high dielectric strength (greater than 45 kV), the new EVO spark plugs can withstand irregular combustion—known as mega knocking—that can occur in modern, technologically advanced engines. These plugs are developed and produced with the same high quality as original equipment spark plugs. Today's turbocharged gasoline direct injection engines place high demands on spark plugs; Bosch EVO meets these needs. Additional product details: * Long service life: The iridium alloy in the firing pin of the center electrode and platinum-iridium alloy on the ground electrode reduces the wear on the electrodes and increases the service life of the spark plug * Mechanical strength: Improved design features on the insulator and housing increase the head bending strength, reducing risk of damage during installation and optimizing gas seal tightness in the cylinder head * Corrosion defense: Improved corrosion protection through the use of a process developed by Bosch for nickel coating of the spark plug housing * Thermomechanical strength: Improved insulator design features provide greater resistance to irregular burns and mega-knocking * Center electrode core material: Nickel-chromium-iron and copper * Center electrode tip material: Iridium * Ground electrode core material: Copper * Ground electrode tip material: Platinum and nickel-chromium-iron and copper

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$13.99