Best Acdelco Spark Plugs

Autolite APP3924 Double Platinum Automotive Replacement Spark Plugs (4 Pack)

MAXIMUM PERFORMANCE: Every Double Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker acceleration. Full copper core electrode provides better performance in all conditions.
IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode provides superior heat transfer.
CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion for longer plug life.
high nickel alloy side electrode maintains precise gap.
AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plugs needs.

This 8 pack NGK G-Power 3403 Spark Plug replaces Autolite AP5243, Autolite AP606, Autolite AP5245, Autolite AP5245DP2, Autolite AP605, Autolite AP605DP2, Autolite AP606DP2, Autolite APP605DP2,.
REDUCE EMISSIONS AND MISFIRES: This tried-and-true Spark Plug boosts performance, reduces emissions, and enables better fuel economy so that your engine runs at its best. The durable shell reliably protects the spark plug from corrosion, ensuring long-lasting sparking capabilities. The center and ground electrodes promote sharper spark focus for fewer misfires.
IMPROVE IGNITION AND SPARK EFFICIENCY: This Spark Plug employs advanced center and ground electrodes to produce complete and efficient combustion and deliver an outstanding spark for faster, stronger, and more powerful combustion over the life of the spark plug. The corrosion-resistant center and ground electrodes minimize spark gap growth and provide greater ignitability and spark efficiency.
RELY ON QUALITY IGNITION COMPONENTS: From their start in 1936 through today, the NGK product line is proof of their dedication to innovation, performance, and quality. In order to deliver high-quality spark plugs and oxygen sensors to the automotive community, NGK has partnered with auto manufacturers to enginee....

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 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.
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle.
GM regularly updates production and service part designs to integrate new materials and technologies.

When you require the best, count on The World Leader in spark plug technology NGK Spark Plugs.ÿ.
NGK offers the highest quality products for virtually every vehicle application. ÿ.
Count on NGK Spark Plugs to deliver the finest quality products and customer service..

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 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.
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle.
GM regularly updates production and service part designs to integrate new materials and technologies.

When you require the best, count on The World Leader in spark plug technology NGK Spark Plugs..
NGK offers the highest quality products for virtually every vehicle application..
Count on NGK Spark Plugs to deliver the finest quality products and customer service..

MAXIMUM PERFORMANCE: Every Copper Spark Plug has a full copper core electrode which provides higher thermal conductivity for better performance in all conditions.
IMPROVED DURABILITY: All Autolite spark plugs are Leak proof and come with a heat fused internal seal for long lasting durability.
CONSTRUCTION: These replacement spark plugs have a copper-glass seal which bonds the insulator and the terminal post center electrode together.
FUEL EFFICIENCY: The Autolite copper automotive replacement spark plug are guaranteed to deliver quick starts, better fuel economy and smooth acceleration.
AUTOLITE ADVANTAGE: Since 1936, Autolite has been a trusted leader and innovator in spark plug technology. You can count on our copper plugs for performance and value, backed by decades of experience and passion.

MAXIMUM PERFORMANCE: Every Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and....
IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode....
CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion....
FUEL EFFICIENCY: The Autolite Platinum automotive replacement spark plug works to optimize engine performance for a longer life and improved fuel....
AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement....

One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life.
Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system.
Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance.
Some ACDelco GM Original Equipment parts may have formerly appeared as ACDelco Professional.