1951 Rolls-Royce Silver Dawn 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.

Product Features:

• ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
• RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
• NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
• SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
• COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
• TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
• Enhanced Ignitability: The V-cut nickel alloy center electrode and concave ground electrode design of NGK V-Power spark plugs provide quicker starts and smoother idle.
• OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring compatibility and reliable performance.

Experience the perfect blend of durability and high performance with this spark plug, designed to deliver exceptional power and torque. Featuring a 0.4mm Iridium Center Electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm Needle Tip Ground Electrode enhances spark energy and minimizes heat quenching. Built with DENSO’s patented Iridium-Rhodium alloy formula, it boasts the highest concentration of Iridium for unmatched durability, enduring temperatures over 4000 Deg F. The advanced 360-degree laser welding process ensures a robust bond and structural integrity, while the Twin-Tip Technology combines a fine wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode for superior ignition. With over 100,000 miles of reliable performance, this plug enhances fuel economy, reduces emissions, and is crafted from premium materials for long-lasting endurance. Designed with a flat seat type, it offers OE-style reliability with the added benefits of cutting-edge engineering.

Product Features:

• 0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
• 0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
• DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
• DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
• Durability of an OE style plug combined with Power and Torque of high performance.
• Withstands temperatures greater than 4000 degree Fahrenheit
• Iridium TT
• Ultimate Endurance and Power: The DENSO Iridium TT Spark Plug features a 0.7mm Iridium Tip, ensuring over 100,000 miles of uncompromised performance.
• Advanced Twin-Tip Technology: Developed from Original Equipment Specification Super Ignition Plug (SIP) design, combining a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode.
• Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
• Premium Materials: Features an Iridium Center Electrode Tip and a Flat Seat Type for optimal performance and durability.

Double Platinum Spark Plug (PK16R8) delivers exceptional performance and reliability, meeting the strictest OE standards for durability and emissions. Featuring OE-grade platinum on both the center and ground electrodes, this spark plug ensures superior thermal conductivity and sustained spark performance for over 60,000 miles. Its premium shell construction with machine-rolled threads enhances durability and provides a secure fit, while the flat seat type ensures optimal compatibility with your engine. Designed to reduce secondary required voltage and increase ignition efficiency, it promotes smoother engine operation and minimizes shop comebacks, making it a trusted choice for satisfied customers. With double platinum construction, this spark plug offers long-lasting performance and value, making it an essential upgrade for maintaining peak engine efficiency.

Product Features:

• OE grade platinum on both center and ground electrodes
• Premium shell construction with machine-rolled threads
• Superior thermal conductivity
• Sustained spark performance over 60,000 miles
• Reduced secondary required voltage, increased ignition efficiency
• Satisfied customers, reduced shop comebacks
• Double Platinum

Copper Plus spark plug delivers dependable performance and durability, making it an ideal choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, promoting longer life and consistent wear. The nickel-tipped center and ground electrodes provide superior corrosion resistance, ensuring reliable ignition performance over time. Designed to meet ISO and SAE Standards, this spark plug guarantees proven performance and compatibility with standard replacement needs. Its flat seat type and integrated resistor further enhance its functionality, making it a trusted solution for optimal engine operation.

Product Features:

• Copper Plus – Dependable Performance.
• Copper core center electrode allows for accurate control of heat range for longer life
• Patented TinTac and ULTRASEAL coated shell for maximum corrosion resistance
• Patented SAC-9 semiconductor resistor for maximum EMI & RFI suppression
• Built to ISO and SAE standards for proven performance

Platinum TT Spark Plug with its innovative twin-tip design ensures faster flame propagation for more complete combustion, delivering superior ignition efficiency and performance. Featuring a platinum center electrode tip and a titanium-enhanced ground strap, this spark plug is built for exceptional durability and consistent reliability. The platinum material provides a stable and long-lasting spark, while the flat seat type ensures a secure fit for optimal functionality. Engineered for enhanced ignition, it is an ideal choice for maintaining peak vehicle performance. Whether you’re seeking improved fuel efficiency or dependable ignition, this spark plug offers unmatched value and durability for your vehicle’s needs.

Product Features:

• Platinum Twin-Tip Design: The Denso Platinum TT Spark Plug features a unique twin-tip design, enhancing ignition efficiency and performance.
• Titanium-Enhanced Ground Strap: Equipped with a titanium-enhanced ground strap, this spark plug ensures superior durability and longevity.
• Platinum Center Electrode Tip: The center electrode tip is made of platinum, providing excellent durability and a consistent spark for reliable ignition.
• Superior Performance: Designed for enhanced ignition, this spark plug offers reliable and efficient performance, making it a top choice for vehicle maintenance.
• Flat Seat Design: The flat seat type ensures a secure and precise fit, contributing to optimal functionality and reliable performance.

The Iridium TT Spark Plug delivers the perfect blend of durability and high performance, making it an ideal choice for drivers seeking reliability and power. Featuring a 0.4mm Iridium center electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm needle tip ground electrode promotes higher spark energy and minimizes heat quenching. Crafted with DENSO’s patented Iridium-Rhodium alloy formula, this spark plug boasts the highest concentration of Iridium for unmatched durability. Its 360-degree laser welding process ensures a robust bond and structural integrity, even under extreme conditions exceeding 4000 degrees Fahrenheit. Designed with a flat seat type for a secure fit, it offers consistent performance throughout its lifespan. Beyond power and torque, the Iridium TT enhances fuel economy and reduces emissions, allowing you to drive around the Earth over four times with improved efficiency. This spark plug is the ultimate solution for drivers demanding OE-style reliability combined with high-performance endurance.

Product Features:

• 0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
• 0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
• DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
• DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
• Durability of an OE style plug combined with Power and Torque of high performance.
• Withstands temperatures greater than 4000 degree Fahrenheit
• Iridium TT
• Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
• Reliable and Durable: The flat seat type design ensures a secure fit and consistent performance throughout its lifespan.

The U-Groove Spark Plug with its patented U-groove ground electrode design is engineered to deliver superior ignitability, enabling leaner fuel mixtures for enhanced engine efficiency. Crafted with a nickel center electrode tip and a flat seat type, this spark plug ensures reliable performance and compatibility with a wide range of vehicles, including classic and collector cars. Precision machine-rolled threads minimize the risk of seizing or cross-threading in delicate aluminum heads, making installation smooth and secure. Built to last twice as long as most conventional plugs, it offers exceptional durability and value. Each plug is 100% pre-fired to guarantee dependable operation, making it a trusted choice for maintaining optimal engine performance.

Product Features:

• Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
• Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
• Wide range of part numbers for thousands of applications, including classic and collector cars
• Lasts twice as long as most conventional plugs
• 100 percent pre-fired to assure reliable operation
• U-Groove Conventional

NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE technology as a high ignitability plug, Ruthenium HX spark plugs come with patented, specialized OEM DFE and PSPE tip designs. NGK Ruthenium HX High Ignitability spark plugs provide a more complete fuel burn resulting in a quicker throttle response, smoother idle and better cold starts. Ruthenium center electrode provides industry leading durability.

Product Features:

• HIGH IGNITABILITY PROJECTED SQUARE PLATINUM ELECTRODE DESIGN: Combines 0.6 millimeter ruthenium center with a unique cut-back PSPE ground electrode
• RUTHENIUM ALLOY CENTER ELECTRODE: NGK’s patented ruthenium technology produces maximum performance, ignitability & durability at high temperatures
• PSPE DESIGN: Projected square platinum electrode shape of the ground electrode provides the best ignitability and service life for high heat engines
• SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
• TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
• RECOMMENDED USAGE: Modern vehicles using OE PSPE type spark plugs or for those seeking an aftermarket plug with the latest OE technology

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 high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation for added strength. With a nickel-plated shell, these spark plugs resist corrosion, providing long-lasting durability. Engineered for good fuel economy, they help reduce fuel costs without compromising performance. The standard center electrode design with mid projection and nickel tip material ensures optimal ignition, while the flat seat type and resistor functionality further enhance reliability. Perfect for regular-grade applications, these spark plugs deliver quick starts and the power needed to meet your vehicle’s performance expectations.

Product Features:

• The copper core center electrode aids in thermal control and improves resistance to fouling.
• Its specially engineered high nickel alloy center and ground electrode provides extended life.
• The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
• Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
• Good Fuel Economy: Engineered to provide good fuel economy, helping you save on fuel costs.

The Double Platinum Power Spark Plug (RC11PYPB4) is engineered to deliver enhanced durability and performance for your vehicle. Featuring Champion’s exclusive Heat-Active alloy, this spark plug ensures optimal operating temperatures under all engine loads, providing consistent and reliable ignition. Its platinum fine-wire center electrode and platinum pad ground electrode offer superior wear resistance, extending the lifespan of the plug while maintaining sharper spark focus. The V-trimmed ground electrode enhances ignitability, promoting efficient combustion and improved engine performance. Designed as an OE replacement, it guarantees compatibility and seamless integration with your vehicle’s system. With its resistor type construction and flat seat design, this premium spark plug is the perfect choice for those seeking long-lasting, high-performance ignition components.

Product Features:

• Double Platinum Power – Premium Spark Plug. More Powerful Performance.
• Platinum center and ground electrode for greater wear resistance
• Maintains stable operating temperature under all engine loads
• Fine-wire center electrode for greater ignitability
• V-trimmed ground electrode promotes sharper spark focus
• Heat-Active alloy allows electrodes to reach optimal temperature
• OE Replacement: Designed as an OE replacement, ensuring compatibility and reliable performance for your vehicle.

Champion Iridium Spark Plug is engineered for drivers who demand peak performance and durability. Featuring a fine-wire iridium center electrode and a platinum-enhanced ground electrode, this premium spark plug ensures sharper spark focus and greater ignitability, delivering maximum engine efficiency. The V-trimmed ground electrode design promotes precise spark delivery, while the Heat-Active alloy enables the electrodes to quickly reach and maintain optimal operating temperatures under all engine loads. Built with a flat seat type and resistor technology, it ensures stable performance and reduced interference. Designed for longevity, the iridium center electrode offers exceptional durability, making it ideal for high-performance applications. Whether you’re looking to enhance your vehicle’s ignition system or maintain consistent power, this spark plug is a reliable choice for superior performance and extended service life.

Product Features:

• Champion Iridium – Maximum Performance. Premium Spark Plug
• Iridium center electrode delivers maximum life
• Fine-wire center electrode and V-trimmed for greater ignitability
• V-trimmed ground electrode promotes sharper spark focus
• Maintains stable operating temperature under all engine loads
• Heat-Active alloy allows electrodes to reach optimal temperature quickly

Champion Iridium spark plug is engineered for drivers who demand peak performance and durability. Featuring a fine-wire iridium center electrode and a platinum ground electrode, this premium spark plug ensures sharper spark focus and greater ignitability, delivering maximum engine efficiency. The V-trimmed ground electrode enhances spark precision, while the Heat-Active alloy allows the electrodes to quickly reach and maintain optimal operating temperatures under all engine loads. Designed with a flat seat type and built-in resistor, it provides stable performance and reduces interference. Whether you’re looking for extended service life or consistent ignition, this performance-grade spark plug is the ideal choice for maintaining your engine’s top-notch functionality.

Product Features:

• Champion Iridium – Maximum Performance. Premium Spark Plug
• Iridium center electrode delivers maximum life
• Fine-wire center electrode and V-trimmed for greater ignitability
• V-trimmed ground electrode promotes sharper spark focus
• Maintains stable operating temperature under all engine loads
• Heat-Active alloy allows electrodes to reach optimal temperature quickly

Autolite Copper spark plugs are expertly crafted to ensure quick starts and reliable performance for your vehicle or application. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, while the high nickel alloy center and ground electrode deliver extended life and durability. The high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation, providing superior strength under demanding conditions. With a nickel-plated shell, these spark plugs are corrosion-resistant, ensuring long-lasting durability. Designed to optimize fuel combustion, they improve fuel efficiency, helping you save money at the pump. Additionally, their advanced engineering promotes smoother and more responsive acceleration, enhancing your driving experience. With a standard center electrode design and short projection, these spark plugs are built for regular-grade applications, making them a reliable choice for maintaining peak engine performance.

Product Features:

• The copper core center electrode aids in thermal control and improves resistance to fouling.
• Its specially engineered high nickel alloy center and ground electrode provides extended life.
• The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
• Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
• Good Fuel Economy: Designed to optimize fuel combustion, these spark plugs help improve your vehicle’s fuel efficiency, saving you money at the pump.
• Smooth Acceleration: Experience smoother and more responsive acceleration with the advanced engineering of Autolite Copper Spark Plugs.
• Smooth Acceleration: Experience smoother and more responsive acceleration with the advanced engineering of Autolite Copper Spark Plugs.

The Copper Plus spark plug delivers dependable performance and durability, making it an ideal OE-type replacement for your vehicle. Featuring a copper core center electrode, it ensures precise heat control for extended lifespan and consistent wear. Its nickel-tipped center and ground electrodes enhance conductivity while resisting fouling, ensuring reliable ignition under various conditions. Built to ISO and SAE Standards, this spark plug offers proven performance and superior corrosion resistance, making it a trustworthy choice for maintaining your engine’s efficiency. With a flat seat type and standard-grade design, it provides a seamless fit and optimal functionality for standard replacement needs.

Product Features:

• Resists fouling
• Superior corrosion resistance
• Dependable and proven performance
• Increased conductivity and heat control for good overall wear

Copper Plus spark plug delivers reliable performance and durability, making it an ideal choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, promoting longer life and consistent wear. The nickel-tipped center and ground electrodes provide superior corrosion resistance, ensuring dependable operation even in challenging conditions. Designed to meet ISO and SAE Standards, this spark plug guarantees proven performance and compatibility with standard replacement needs. Its flat seat type and built-in resistor further enhance functionality, making it a trusted solution for optimal ignition. Choose this spark plug for a balance of quality, durability, and value.

Product Features:

• Copper Plus – Dependable Performance and Durability
• Copper core center electrode allows for accurate control of heat range for longer life
• Superior corrosion resistance
• Built to ISO and SAE standards for proven performance
• Built to ISO and SAE standards for proven performance

Engineered to meet the highest OE standards for performance, durability, and emissions, this Iridium Long-Life Spark Plug is a game-changer for your vehicle. Featuring DENSO’s patented Iridium Alloy with a 90% Iridium fine wire center electrode, it delivers sustained spark performance for over 100,000 miles, lasting up to three times longer than conventional plugs. The platinum ground electrode ensures extended life, while the 360-degree laser welding process guarantees a robust bond and structural integrity. Designed to endure extreme temperatures exceeding 4,000 Deg F, its perfect for high-performance ignition systems. This spark plug not only enhances engine performance by providing more horsepower, quicker starts, and fewer misfires under heavy loads but also improves fuel efficiency, making it an eco-friendly choice. With a flat seat type and advanced materials, its a reliable upgrade for drivers seeking long-lasting quality and optimal engine performance.

Product Features:

• Latest OE technology with DENSO’s patented Iridium Alloy (90 percent Ir) and fine wire center electrode
• Platinum ground electrode for extended life
• DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
• Sustained spark performance over 100,000 miles
• Lasts up to three times as long as conventional plugs
• Endures extreme temperatures greater than 4,000 degrees F associated with high-performance ignition and special fuel systems
• Iridium Long Life
• Enhanced Engine Performance: Enjoy more horsepower, faster and easier starts, and fewer misfires under heavy loads, thanks to the advanced properties of DENSO’s Iridium alloy.
• Fuel Efficiency: The DENSO Iridium Long Life plug helps in better conservation of fuel, making it an eco-friendly choice for your vehicle.

The Iridium Power Spark Plug is engineered for the most demanding automotive enthusiasts, delivering no-compromise performance and reliability. Featuring a patented U-groove ground electrode design, it ensures efficient ignition even with leaner fuel mixtures, outperforming conventional plugs. Its iridium center electrode tip offers exceptional durability, withstanding extreme temperatures exceeding 4000 Deg F and lasting twice as long as standard plugs. Precision machine-rolled threads minimize the risk of seizing or cross-threading, making it ideal for delicate aluminum heads. With a flat seat type and a wide range of part numbers, this spark plug is compatible with thousands of applications, including classic and collector cars. Whether you’re on the track or the road, this top-of-the-line spark plug delivers unmatched performance and longevity, making it a valuable upgrade for any serious driver.

Product Features:

• World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
• Patented 360-degree laser welding assembly process
• U-groove and taper cut ground electrode to maximize flame propagation.
• Withstands temperatures greater than 4000 degree Fahrenheit
• Burnished nickel plating for high temperature endurance and superior corrosion resistance
• Wide range of part numbers for thousands of applications, including classic and collector cars
• Iridium Power
• Superior Performance: Engineered for maximum performance under extreme conditions, this spark plug delivers more horsepower, faster and easier starts, and fewer misfires under heavy loads.
• Enhanced Fuel Efficiency: Thanks to its advanced design and patented technology, the Iridium Power plug improves fuel efficiency, making it an economical choice for your vehicle.
• Low Voltage Requirement: The DENSO Iridium Power spark plug requires 5,000 volts less to fire compared to conventional spark plugs, ensuring reliable ignition with lower energy consumption.
• Durable Iridium Material: Constructed with a durable iridium center electrode tip and a flat seat type, this spark plug offers long-lasting performance and reliability.

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.

Product Features:

• SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
• IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
• TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
• SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
• TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
• RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
• Outstanding Performance: NGK Iridium IX spark plugs are specifically designed for performance enthusiasts, providing exceptional acceleration and high fuel efficiency.
• Extreme Durability: The Iridium fine wire center electrode is six times harder than platinum, ensuring long-lasting durability and reliability.
• Enhanced Ignitability: These spark plugs offer extreme ignitability and exceptional anti-fouling, making them ideal for high-performance engines.
• Improved Engine Response: The tapered cut ground electrode enhances starting, idling, and throttle response for a smoother driving experience.

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.

Product Features:

• SINGLE PLATINUM TIP: Fine wire 0.6 millimeter platinum tip center electrode ensures improved durability and a consistently stable spark
• PLATINUM ALLOY: G-Power platinum provides exceptional value with increased performance and longer service intervals than factory nickel plugs
• TRAPEZOIDAL CUT GROUND ELECTRODE: Reduces quenching design produces improved ignitability and performance
• SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
• COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
• RECOMMENDED USAGE: Lower cost alternative to double precious metal spark plugs or as an upgrade to OE nickel alloy spark plugs

The U-Groove Spark Plug with its patented U-groove ground electrode design ensures superior ignitability, allowing your engine to fire leaner mixtures for enhanced efficiency and performance. Crafted with precision machine-rolled threads, it minimizes the risk of seizing or cross-threading, making it ideal for delicate aluminum heads. Built to last twice as long as conventional plugs, this spark plug is 100% pre-fired to guarantee reliable operation from the start. Its nickel center electrode tip and flat seat type ensure consistent performance across a wide range of applications, including classic and collector cars. With a comprehensive selection of part numbers available, this spark plug delivers OE-level performance and durability, making it a dependable choice for maintaining your engine’s peak performance.

Product Features:

• Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
• Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
• Wide range of part numbers for thousands of applications, including classic and collector cars
• Lasts twice as long as most conventional plugs
• 100 percent pre-fired to assure reliable operation
• U-Groove Conventional

NGK Standard spark plugs (in the iconic NGK ‘yellow box’ packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.

Product Features:

• ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode provides consistent performance
• RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
• NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
• SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
• COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
• TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
• Triple Gasket Sealing: Prevents combustion gas leakage, ensuring efficient engine performance.

Double Platinum Spark Plug: Enhanced Durability & Performance is engineered for exceptional reliability and efficiency, making it a top choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring a longer service life compared to copper and standard platinum plugs. The yttrium-enhanced ground electrode delivers superior heat transfer, providing unmatched 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 consistent performance. With a mid-projection center electrode and flat seat type, this spark plug is designed for precision and compatibility. Both the center and ground electrode tips are crafted from platinum, ensuring peak performance and reliability. Ideal for those seeking a performance-grade solution, this spark plug offers enhanced durability and value, making it a smart investment for maintaining engine efficiency and longevity.

Product Features:

• Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
• The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
• Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
• The multi-rib insulator prevents flash-over.
• Designed with a mid-projection center electrode and flat seat type for precise compatibility and optimized performance in distributor-less ignition system (DIS) engines.

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.

Product Features:

• 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
• Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
• Premium aftermarket replacement part
• Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

The Platinum TT Spark Plug with a Twin-Tip design is engineered to deliver superior combustion efficiency by enabling faster flame propagation for a more complete burn. Featuring a durable platinum center electrode tip, this spark plug ensures long-lasting performance and reliable ignition under various driving conditions. Its flat seat type provides a secure fit, enhancing overall engine stability and performance. Designed for precision and efficiency, this spark plug not only improves fuel combustion but also contributes to better fuel economy and reduced emissions. Ideal for drivers seeking enhanced engine responsiveness and durability, it offers exceptional value and reliability for your vehicle.

Product Features:

• Twin-Tip design promotes faster flame propagation, ensuring a more complete and efficient fuel burn.
• Durable platinum center electrode tip enhances longevity and provides consistent ignition performance.
• Flat seat type ensures a secure fit, contributing to improved engine stability and overall performance.
• Optimized combustion efficiency supports better fuel economy and reduced emissions for eco-conscious driving.
• Engineered for enhanced engine responsiveness, delivering reliable performance under various driving conditions.

The Iridium Power Spark Plug features the world’s smallest iridium center electrode at just 0.4mm, delivering unmatched spark precision for maximum combustion efficiency. Engineered with patented 360-degree laser welding, it ensures durability and reliability even under extreme conditions, withstanding temperatures over 4000 Deg F. The U-groove and taper-cut ground electrode design enhances flame propagation, optimizing engine performance. Its burnished nickel plating provides superior resistance to high temperatures and corrosion, making it ideal for long-term use. Designed for a wide range of applications, including classic and collector cars, this spark plug offers superior performance with increased horsepower and improved fuel efficiency. Requiring 5,000 volts less to fire compared to conventional plugs, it ensures reliable starts and fewer misfires, even under heavy loads. Constructed with a durable iridium center electrode tip and a flat seat type, the Iridium Power Spark Plug guarantees long-lasting performance, making it a top choice for drivers seeking efficiency, power, and reliability.

Product Features:

• World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
• Patented 360-degree laser welding assembly process
• U-groove and taper cut ground electrode to maximize flame propagation.
• Withstands temperatures greater than 4000 degree Fahrenheit
• Burnished nickel plating for high temperature endurance and superior corrosion resistance
• Wide range of part numbers for thousands of applications, including classic and collector cars
• Iridium Power
• Superior Performance: Patented technology allows the Iridium Power plug to outperform any other spark plug on the market, delivering more horsepower and better fuel efficiency.
• Low Voltage Requirement: Requires 5,000 volts less to fire compared to conventional spark plugs, making it highly efficient and reliable under extreme conditions.
• Enhanced Engine Starts: Experience faster and easier engine starts with fewer misfires, even under heavy loads, thanks to the advanced design of the DENSO Iridium Power spark plug.
• Durable Iridium Material: Constructed with a durable iridium center electrode tip and a flat seat type, ensuring long-lasting performance and reliability.