1990 Cadillac DeVille Spark Plugs

NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.

ACDelco Gold (Professional) Double Platinum Spark Plug are a high quality alternative to Original Equipment (OE) parts. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Double Platinum Spark Plug by Motorcraft is the ultimate choice for maintaining peak performance and reliability in your Ford, Lincoln, or Mercury vehicle. Engineered to meet strict Ford standards, these spark plugs feature platinum center and ground electrode tips for exceptional durability and resistance to oxidation and arc erosion. Designed to eliminate misfires, reduce fuel consumption, and optimize emissions, they ensure smooth engine operation while protecting against false check engine lights. The multi-rib insulator adds an extra layer of protection against misfires, while the exact fit guarantees seamless installation. With service intervals of up to 100,000 miles, these spark plugs deliver long-lasting performance and value. Backed by Motorcraft’s Service Parts Warranty, they are crafted with high-quality materials to provide reliable performance across a wide range of domestic and import applications. Choose Motorcraft spark plugs for the same trusted quality that was in your vehicle when it rolled off the assembly line.

Champion Double Platinum Power spark plugs combine a platinum fine-wire center electrode with platinum center and ground electrodes and exclusive Heat-Active alloy, ensuring powerful performance, longer service life and precise spark focus for optimal combustion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.

NGK G-Power Platinum spark plugs are the best single platinum spark plugs at an economical price. G-Power plugs feature a fine wire platinum center electrode and a trapezoidal cut ground electrode that offers increased durability, improved fuel efficiency, lower emissions, faster starts and quicker acceleration over conventional nickel spark plugs. An excellent upgrade for vehicles which used nickel alloy spark plugs originally. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.

ACDelco GM Original Equipment Conventional Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

Standard Spark Plug by Motorcraft delivers reliable performance and durability, making it the ideal choice for Ford, Lincoln, and Mercury vehicles. Engineered to meet strict Ford standards, these spark plugs ensure original equipment performance while enhancing durability, reducing misfires, optimizing emissions, and improving fuel efficiency. Designed with high-quality materials, they resist oxidation and arc erosion, while the multi-rib insulator protects against misfires for consistent ignition. With service intervals of up to 100,000 miles, these spark plugs provide long-lasting reliability and confidence on the road. Backed by Motorcraft’s Service Parts Warranty, they are an exact fit for your vehicle and help prevent false check engine lights, ensuring peace of mind. Whether for domestic or import cars and trucks, Motorcraft spark plugs are the trusted solution for maintaining peak engine performance.

Double Platinum Spark Plug offers enhanced durability and performance with its platinum-to-platinum design, effectively reducing gap erosion and misfires for a longer service life. Engineered for distributor-less ignition system (DIS) engines, it outperforms copper and standard platinum plugs. The yttrium-enhanced ground electrode ensures superior heat transfer, maintaining durability under high temperatures and pressure. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for reliable operation. Featuring a mid-projection center electrode and flat seat type, this performance-grade spark plug is built with platinum tips on both the center and ground electrodes for consistent ignition and efficiency. Designed to withstand demanding conditions, it delivers exceptional value for drivers seeking reliability and long-lasting performance.

Autolite Platinum spark plugs are crafted for exceptional performance and durability, making them an ideal choice for older engine designs. Featuring a platinum center electrode firing tip, they ensure quicker firing, smoother starts, and enhanced fuel efficiency. The platinum construction resists gap erosion, extending the service life, while the high alumina ceramic insulator provides superior thermal conductivity and insulation for added strength. A multi-rib insulator design prevents flash-over, ensuring reliable operation, and the nickel-plated shell offers excellent corrosion resistance for long-lasting durability. With a mid-projection standard center electrode and a flat seat type, these performance-grade spark plugs deliver consistent results. The combination of a platinum tip and nickel ground electrode ensures optimal ignition, making these spark plugs a dependable upgrade for improved acceleration and overall engine efficiency.

ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.

ACDelco Professional Double Platinum Spark Plugs are premium aftermarket plugs, and are a high quality replacement for many vehicles on the road today. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.

NGK G-Power Platinum spark plugs are the best single platinum spark plugs at an economical price. G-Power plugs feature a fine wire platinum center electrode and a trapezoidal cut ground electrode that offers increased durability, improved fuel efficiency, lower emissions, faster starts and quicker acceleration over conventional nickel spark plugs. An excellent upgrade for vehicles which used nickel alloy spark plugs originally. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.

Champion Copper Plus spark plugs deliver dependable ignition performance with proven copper-core technology. The copper core electrode provides excellent conductivity and optimized heat control for consistent sparks while the coated shell protects against corrosion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.

NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.

This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.

This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.

This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.