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Autolite Revolution HT spark plugs are designed to provide more space for additional intake valve and unobstructed intake ports. They will enhance power and create more efficient airflow without increasing the engine's size. The Revolutions from Autolite feature a 10mm high-thread design that can maintain the same dielectric, mechanical, and durability characteristics associated with conventional 14mm spark plugs. When doing a tuneup on your engine, use Autolite Revolution HT spark plugs to get the job done .
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$9.99
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$21.99
B&B Performance spark plug indexing shims properly align your ignition spark with the intake valve, adding increased horsepower. These soft copper gaskets are available in three thicknesses per set, allowing you to adjust the electrode's location when the spark plug is torqued in the cylinder head. Positioning the spark at the most advantageous location will provide a performance improvement. The shims are available in different sizes, for flat or tapered spark plug seating.
Not Yet Reviewed
$35.99
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.
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$7.99
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$13.99
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.
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$12.99
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.
( 707 )
$8.49
NGK Standard Series spark plugs are designed for stock replacement applications. These plugs have a hotter spark, which means better combustion—and that improves performance, while producing less harmful emissions. They're available in a variety of options for both universal and specific vehicle applications. Get the spark plugs used by winning racers: NGK Standard Series.
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$2.99
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$9.99
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.
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$3.99
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$10.99
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
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$9.99
NGK V-Power spark plugs offer economical performance for nearly any automotive application—and they're the only plugs with NGK's V-Groove technology. These plugs enhance ignitability, lower the voltage requirements of ignition systems, and have strong anti-fouling characteristics, while improving fuel mileage and acceleration performance. The V-Power plugs are also highly durable against electrical and chemical wear, making them long-life replacement plugs. Because of the V-Groove, the spark occurs at the edge of the center electrode—so heat is not absorbed by the electrode itself. This allows the flame kernel to expand quickly and efficiently for a complete burn and great performance. More than a hundred models are available, both universal and application-specific; order the plugs designed for fitment on your vehicle.
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$2.99
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$3.99
Summit Bucks
ACDelco conventional resistor spark plugs feature a design for reliability and efficient performance. These economical replacements remain ideal for many vehicles and marine applications. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance every time. The spark plugs are available in a variety of sizes and other options for universal and application-specific fitment. Order the model recommended for your vehicle.
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$2.99
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There are telltale signs of failing spark plugs: Slow acceleration, loss of power, poor fuel economy, engine misfires, and difficulty starting the car. When it's time for a tuneup, order Crown Automotive spark plugs designed for your vehicle application. These plugs have copper or nickel alloy electrodes, and will burn your fuel efficiently to keep the engine running strong. Crown spark plugs are manufactured to OE standards for proper fit and performance.
Not Yet Reviewed
$14.99
$13.49
Denso U-Groove spark plugs are Denso's "standard" spark plug, but they're still something special. U-Groove plugs employ a unique, channeled ground electrode designed to generate a larger spark nucleus at the point of ignition. Greater spark energy than ordinary plugs means improved flame travel, producing more complete, consistent, and efficient combustion. Denso U-Groove spark plugs are engineered for greater fuel efficiency and improved throttle response. The U-Groove ground electrode was developed to meet OEM's demands for improved ignitability and lower emissions. With the U-Groove, firing can be greatly improved without increasing the spark plug gap. The insulators are made from purified alumina providing support for the center electrode, while preventing flashover and voltage loss. The copper and glass mixture bonds the center electrode together to form a gas tight seal. Select the model and options best suited for your application. Additional features and benefits of Denso U-Groove spark plugs include: * 360 degree laser-welded * 100 percent pre-fired to ensure reliable operation * Copper core center electrode for superior thermal conductivity * Unique 5-rib insulator reduces flashover and decreases voltage loss * Dual copper and glass seal bonds the center electrode and insulator together for a gas-tight seal * Original equipment in many automotive applications * Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads * Wide range of part numbers for thousands of applications, including classic and collector cars * Lasts twice as long as conventional plugs
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$6.99
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
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$8.99
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.
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$7.99
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$10.99
Denso Platinum TT spark plugs originated from Denso's Twin-Tip design for original equipment use in the most technologically advanced automobiles. But now Denso offers this cutting-edge technology in a platinum/titanium design customized for today's value-minded automotive enthusiasts. Denso pioneered the use of platinum in spark plug manufacturing. To maximize longevity and enhance durability, Denso applied platinum to both the center and ground electrodes. Platinum offers superior resistance to erosion and corrosion enabling Denso to create spark plugs capable of consistent performance. Additional features and benefits of Denso Platinum TT spark plugs include: * 360 degree laser weld * 1.1mm platinum center electrode * Titanium-enhanced alloy ground electrode * Minimum-quench electrode design * Free standing firing pad * Improved fuel economy * Faster starts * Enhanced flame propagation for increased engine efficiency * Reduced quenching generates a more powerful spark
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$6.99
Denso was the pioneer in introducing platinum spark plugs to the automotive aftermarket, but has hardly been content to rest on that achievement. Conventional platinum plugs use platinum for only the center electrode, while Denso Double Platinum spark plugs feature platinum on both the center and ground electrodes. This precious metal fights corrosion and erosion, ensuring superior spark performance and maximum spark plug life. Order the model recommended for your vehicle application. Additional features and benefits of Denso Double Platinum spark plugs include: * Capable of extended operation in excess of 60,000 miles * 360 degree laser weld * Platinum center electrode * Platinum ground electrode * Premium shell construction with machine-rolled threads * Superior thermal conductivity * Reduced secondary required voltage, increased ignition efficiency
Not Yet Reviewed
$10.99
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
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$11.99
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