Which Spark Plugs Are Best For My Vehicle?

ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement ideal for many vehicles on the road today.

• Black Onyx coating helps reduce corrosion
• Copper core provides great heat transfer and helps maximize plug durability
• Ribbed suppressor seal extends resistance and helps prevent spark “flash over” and misfires
• Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
• Available for use in Marine applications

Autolite Copper Core plugs are your industry standard, and are guaranteed to deliver quick starts, good fuel economy and smooth acceleration.

• Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
• Multi-rib insulator reduces danger of “flash over”
• One-piece terminal post adds strength
• Resistor reduces radio frequency interference (RFI) and electrode erosion
• Cold-formed steel shell precision rolled threads
• Full copper core electrode provides better performance in all conditions

NGK Copper Spark Plugs are workhorses, and are at the heart of smooth-running engines around the world.

• Corrugated ribs prevent flash over
• High dielectric strength
• Proper heat transfer
• Greater spark and heat transfer
• Three-step trivalent-plating process uses silver chromate and zinc for maximum corrosion resistance
• Triple gasket-sealing process virtually eliminates gas leakage past the shell
• 99% highly pure alumina silicate insulator enables use of longer insulator noses to reduce fouling

ACDelco Professional RAPIDFIRE Single Platinum Performance Spark Plugs are manufactured to meet or exceed manufacturer specifications for fit, form, and function.

• Solid state suppressor regulates spark energy for long electrode life
• Innovative design protects against high combustion pressures
• Pure copper core provides great heat transfer and helps maximize plug durability
• Platinum center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
• Ribless insulator helps optimize plug to boot seal

Autolite Platinum spark plugs provide a center wire platinum firing tip, which reduces gap erosion, helps prevent misfires, and offers improved performance and durability.

• High nickel alloy side electrode maintains precise gap
• Full platinum tip assures virtually no gap erosion
• Necked-down center electrode fires quicker and cleaner with less voltage for easier starts, quicker acceleration, and improved fuel economy
• Leak-proof, heat-fused resistor offers added stability
• Yttrium-enhanced ground electrodes deliver superior heat transfer

NGK G-Power Platinum Spark Plugs are designed to meet and exceed OE specifications and designs for improved fuel efficiency, lower emissions, and quicker starts.

• Fine platinum tip reduces voltage requirement
• Extremely durable under high heat
• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Can provide faster starts and quicker acceleration
• Helps maintain or improve fuel economy and reduce emissions

ACDelco Professional Double Platinum spark plugs are premium aftermarket plugs. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance.

• One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal
• Reduce radio frequency and engine interference, regulates spark plug energy, and protects against compression pressures for long life
• Double platinum point pad on center and ground electrodes offer excellent durability and consistent voltage demands to help reduce wear on the ignition system
• Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance

Autolite Double Platinum spark plugs feature platinum-to-platinum firing to increase vehicle performance. Built to meet or exceed OE specifications, this spark plug provides quality technology for Distributorless Ignition Systems (DIS).

• High nickel alloy side electrode
• Full platinum tips
• Necked-down center electrode
• Full copper core center electrode
• Virtually eliminates gap erosion, reduces misfires, and provides improved durability*

NGK Double Platinum spark plugs offer high ignitability and longer service life. Dual platinum surfaces ensure a slow wear rate, providing stable idle, superior anti-fouling performance, improved fuel efficiency, and lower emissions.

• Laser-welded platinum center electrode tip
• Platinum disc welded to the back side of the ground electrode provides long life
• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Can offer faster starts and quicker acceleration
• Improves fuel economy and lower emissions
• OEM-approved design

ACDelco Professional Iridium spark plugs provide high melting points and great strength, and provide excellent wear resistance and durability.

• Iridium offers excellent engine idle stability and smooth performance
• Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration
• Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form
• One one-piece suppressor seal helps block radio frequencies that can affect vehicle electronics
• Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage
• As spark plugs fire at an extremely high rate, these Professional Iridium spark plugs are under constant chemical, thermal, physical, and electrical attack by corrosive gases that can reach upwards of 4,000°F

Autolite Iridium XP Enhanced Alloy Technology spark plugs are one of the brand’s most technologically advanced spark plugs ever. These spark plugs provide optimum performance.

• Iridium-enhanced center electrode
• Patented, platinum sidewire technology
• 0.6-mm finewire design
• Nickel-plated shell

NGK Iridium IX Spark Plugs are designed specifically for the performance enthusiast. These plugs offer extreme ignitability, improved throttle response, and superior anti-fouling.

• Fine iridium tip ensures high durability and a consistently stable spark
• Iridium alloy has an extremely high melting point, perfect for today’s high-tech, high-performance engines
• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Outstanding acceleration, high fuel efficiency and durability
• Ultimate design, technology and performance