1981 AMC Concord Spark Plugs

The Platinum Spark Plug (AP985) is expertly crafted to deliver enhanced durability and performance for older engine applications. Featuring a platinum center electrode firing tip, it ensures quicker firing, smoother starts, and improved fuel efficiency while preventing gap erosion for a longer service life. Its high alumina ceramic insulator provides superior thermal conductivity and insulation, boosting strength and reliability under demanding conditions. The extra-long projection of the center electrode design further optimizes ignition performance, while the nickel-plated shell resists corrosion for extended durability. With a multi-rib insulator to prevent flash-over and a flat seat type for secure installation, this performance-grade spark plug is built to withstand the rigors of daily driving. Whether you’re seeking better acceleration or reliable ignition, this spark plug offers exceptional value and long-lasting dependability.

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.

Champion Platinum Power spark plugs deliver powerful performance with the exclusive Premium alloy that reaches and sustains the correct operating temperature. A fine-wire center electrode and V-trimmed ground electrode provides sharp spark focus and reliable ignition for consistent combustion under demanding conditions. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.

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.

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.

Autolite Copper spark plugs are crafted to deliver reliable performance and durability, making them an excellent choice for quick starts and consistent power. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring smooth operation. The high nickel alloy center and ground electrodes are designed for extended life, while the extra-long projection of the center electrode enhances ignition efficiency. Built with a high alumina multi-rib ceramic insulator, these plugs offer superior thermal conductivity and insulation for added strength. The nickel-plated shell provides exceptional corrosion resistance, ensuring durability over extended use. With a flat seat type and integrated resistor, these spark plugs are engineered to meet regular-grade performance Standards, making them a dependable solution for your vehicle’s ignition system.

Double Platinum Spark Plug: Enhanced Durability & Longer Life is engineered for peak performance and reliability, making it an ideal choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring consistent ignition and extended service life. The yttrium-enhanced ground electrode offers superior heat transfer, providing exceptional 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 added safety. With a standard center electrode design and extra-long projection, this spark plug delivers precise ignition performance. Both the center and ground electrode tips are crafted from platinum, ensuring unmatched durability and efficiency. Designed with a flat seat type and integrated resistor, this performance-grade spark plug is built to withstand demanding conditions while delivering reliable results. Upgrade to this spark plug for enhanced engine performance and long-lasting value.

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.

DiamondFire Automotive Spark Plug delivers exceptional performance and efficiency with its innovative Diamond Fire edge-to-edge ground electrode design. Engineered for smoother acceleration and idle, it ensures a faster, more complete burn of the fuel charge, maximizing pressure against the piston and putting more fuel to work. With power output improved by up to 6% on average, this spark plug enhances energy efficiency while reducing engine carbon deposits thanks to its patented Diamond Fire Technology. The unique diamond-shaped side wire electrode ignites the air/fuel mixture quickly, creating a larger flame kernel for optimal combustion. Crafted with durable nickel center and ground electrode tips, it offers long-lasting reliability. Pre-gapped at the factory for hassle-free installation, this tapered seat spark plug is a smart choice for drivers seeking improved fuel savings, cleaner engine performance, and enhanced power output.

The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.58 is a 14mm, 0.750 reach plug with a gasket seat. E3.58 also has an additional extension, or skirt, just below the threads that extends the reach to .917. It fits a wide variety of applications, especially Jeep applications. E3.58 is widely stocked in automotive retail stores. The automotive plugs have three legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.

Autolite Copper spark plugs are expertly crafted to ensure reliable performance and durability for your vehicle. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring consistent operation. The high nickel alloy center and ground electrodes are designed for extended life, while the nickel-plated shell offers superior corrosion resistance for long-lasting durability. With a high alumina multi-rib ceramic insulator, these spark plugs provide excellent thermal conductivity and insulation, enhancing strength and reliability. Engineered with a mid-projection standard center electrode and tapered seat type, they deliver optimal compatibility and performance. The nickel tip material on both the center and ground electrodes ensures robust functionality, while the built-in resistor type further enhances efficiency. Designed to optimize fuel economy, these spark plugs help you save on fuel costs without compromising on power or quick starts. Perfect for regular-grade applications, they are a dependable choice for maintaining peak engine 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.

ACDelco Gold (Professional) Conventional Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These conventional spark plugs are designed for reliability and efficient performance. 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 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.

The Iridium TT Spark Plug combines the durability of an OE-style plug with the unmatched power and torque of high-performance engineering. Featuring a 0.4mm Iridium center electrode – the world’s smallest diameter – it maximizes firing potential for superior ignition. The 0.7mm needle tip ground electrode enhances spark energy while reducing heat quenching, ensuring consistent performance. Built with DENSO’s patented Iridium-Rhodium alloy formula, this spark plug boasts the highest concentration of Iridium among competitors, delivering exceptional durability and reliability. The 360-degree laser welding process guarantees a robust bond and structural integrity, even under extreme conditions. Designed to withstand temperatures exceeding 4000 Deg F, this plug is engineered for endurance and peak performance. Its tapered seat type ensures a secure fit, making it a perfect choice for those seeking long-lasting, high-performance ignition solutions.

The Platinum Spark Plug (AP666) is a high-performance solution designed to elevate your engine’s efficiency and reliability. Featuring a platinum center electrode firing tip, it ensures quicker firing, smoother starts, and improved fuel efficiency while preventing gap erosion for a longer service life. Its high alumina ceramic insulator enhances thermal conductivity and insulation, delivering superior strength under demanding conditions. The multi-rib insulator effectively prevents flash-over, while the nickel-plated shell resists corrosion, ensuring extended durability. With a mid-projection center electrode and tapered seat type, this spark plug is tailored for optimal performance in older engine applications and designs. The combination of platinum and nickel materials in the electrode tips guarantees consistent ignition and robust performance, making it a dependable choice for drivers seeking enhanced acceleration and reliability. Engineered for durability and efficiency, this spark plug is a smart investment for maintaining peak engine performance over time.

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.

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.

Champion Iridium spark plugs combine a fine-wire iridium center with platinum ground electrodes to help any engine achieve top performance, regardless of ignition type. This advanced design ensures precise ignition, long-lasting durability and reliable performance mile after mile, while reducing wear and tear. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.

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.

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

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.

Ensure your engine runs smoothly and efficiently with this high-quality spark plug, designed to deliver reliable ignition and optimal performance. Engineered for durability, it provides consistent sparks to ignite the air-fuel mixture, enhancing engine efficiency and reducing misfires. Its robust construction ensures long-lasting performance, even under demanding conditions, making it a dependable choice for maintaining your vehicle’s peak performance. Whether you’re replacing a worn-out plug or upgrading for better efficiency, this spark plug offers excellent value by improving fuel economy and overall engine responsiveness. Perfectly suited for a wide range of vehicles, its an essential component for keeping your engine in top shape.

Copper Plus Spark Plug delivers dependable performance and durability, making it a reliable choice for your vehicle’s ignition system. Featuring a copper core center electrode, it ensures accurate heat range control for extended lifespan and consistent functionality. The nickel center electrode tip material enhances conductivity, while the tapered seat type ensures a secure fit. Designed with superior corrosion resistance, this spark plug is built to ISO and SAE Standards, guaranteeing proven performance under various conditions. Its resistor type further optimizes ignition efficiency, contributing to smoother engine operation. Whether you’re seeking enhanced heat control or long-lasting wear, this spark plug offers exceptional value and reliability for your vehicle’s needs.

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.