Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Availability
MERCURY Spark Plugs
Showing In Stock Items. Show All 5 Items.
Clearance
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.
( 158 )
$9.99
$6.50
Clearance
Autolite Copper Core Spark Plugs
Autolite copper core spark plugs feature a cold-formed steel shell with precision-rolled threads, a full copper core electrode for better performance, and a one-piece terminal post to add strength. The ignition plugs use a copper-glass seal that bonds the insulator and terminal post center electrode together. This ensures full voltage at the spark gap and a 100 percent leak-proof, gas-tight seal. Autolite features an extensive application guide to cover just about everything with an internal combustion engine. Keep your engine running smoothly and reliably with Autolite replacement copper core spark plugs.
( 245 )
$2.99
—
$3.99
$1.50
—
$2.50
Clearance
Pilot Automotive Nitrode Spark Plugs
Pilot Automotive Nitrode spark plugs feature a unique, patented neutral electrode placed in-between the center and ground electrodes, arcing the largest unimpeded spark into a combustion chamber. Introducing such a spark into the engine cylinder ignites your fuel more completely and efficiently, producing greater power, less emissions, and better fuel mileage. These plugs are the world's most efficient spark plugs, made with an exclusive proprietary ceramic. This unique ceramic is over 10 percent harder than any ceramic used today, resulting in the best anti-fouling plugs available. The sparks also employ a copper core center electrode, and feature rolled threads (not cut).
Not Yet Reviewed
$3.99
$2.50
Clearance
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
( 17 )
$8.99
$5.50
Clearance
Bosch Double Platinum Spark Plugs
Bosch Double Platinum spark plugs are real energizing beauties! They're engineered for up to three times more service life, with laser-welded platinum inlay ground electrodes, fine wire platinum firing pins for better ignitability, and unique 360 continuous laser welds that fuse corrosion-resistant platinum firing pins to the bases. Get the power for winning performance through Bosch Double Platinum spark plugs. Order the model recommended for your vehicle application.
( 2 )
$8.99
$4.50
