1950 Buick Roadmaster Spark Plugs

Double Platinum Spark Plug PT16EPR-L13 is engineered to meet the highest OE standards for performance, durability, and emissions. Featuring OE-grade platinum on both center and ground electrodes, it ensures superior thermal conductivity and sustained spark performance for over 60,000 miles. The premium shell construction with machine-rolled threads enhances durability and provides a secure fit, while the tapered seat type ensures optimal compatibility with your engine. Designed to reduce secondary required voltage and increase ignition efficiency, this spark plug delivers reliable performance and helps minimize shop comebacks, ensuring customer satisfaction. With its double platinum design, it offers exceptional longevity and consistent ignition, making it a valuable addition to your vehicle’s ignition system.

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

ACDelco Gold (Professional) RAPIDFIRE Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These RAPIDFIRE Single Platinum Performance Spark Plugs are designed for everyday use and are a high quality replacement for many vehicles on the road today. These premium aftermarket spark plugs have high-quality suppressors that help prevent misfiring, an improved plug to boot seal, and a pure copper core for greater durability. 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.

Product Features:

• Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures
• Pure copper core provides great heat transfer and helps maximize plug durability
• Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
• Ribless insulator helps optimize plug to boot sea
• 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
• High-Quality Suppressors: ACDelco Gold RAPIDFIRE Spark Plugs feature high-quality suppressors that help prevent misfiring, ensuring reliable performance for everyday use.

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.

Product Features:

• ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire iridium alloy center electrode provides consistent performance
• IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
• PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
• 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: Best for vehicles with OE fine wire iridium alloy plugs
• Superior Durability: The iridium-tipped center electrode is six times harder than platinum, ensuring long-lasting performance.
• OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring a perfect fit and optimal performance.
• Even Wear: Features a platinum pad on the ground electrode for even wear, particularly beneficial in distributorless ignition systems.
• Fine Wire Tip Design: The fine wire tip design of the ITR5H13 model enhances ignition efficiency and performance.

Motorcraft Spark Plugs are precision-engineered to meet strict Ford standards, ensuring original equipment performance and reliability for Ford, Lincoln, and Mercury vehicles. Designed with a fine wire platinum center electrode and platinum ground electrode tip, these spark plugs deliver enhanced durability, reduce fuel consumption, and optimize emissions. The multi-rib insulator protects against misfires, while the tapered seat type ensures an exact fit for seamless installation. Resistant to oxidation and arc erosion, they are built to withstand service intervals of up to 100,000 miles, providing long-lasting performance and confidence on the road. Backed by Motorcraft’s Service Parts Warranty, these spark plugs help prevent false check engine lights and maintain peak engine efficiency. Crafted with high-quality materials, they are ideal for a broad range of applications, including domestic and import cars and trucks, making them a reliable choice for drivers seeking durability and optimized performance.

Product Features:

• Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
• Backed by Motorcraft’s Service Parts Warranty
• Exact fit for Ford, Lincoln and Mercury vehicles
• Resistant to oxidation and arc erosion.
• Multi-rib insulator protects against misfire.
• Service intervals of up to 100,000 miles.
• Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
• Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
• Motorcraft ignition components help prevent false check engine lights.

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 c

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

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.

Product Features:

• 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 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 Double Platinum Spark Plug is engineered for exceptional durability and performance, 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. Its yttrium-enhanced ground electrode delivers superior heat transfer, allowing it to withstand high temperatures and pressure for extended durability. The high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for reliable operation. With a mid-projection center electrode and tapered seat type, this performance-grade spark plug is designed to deliver consistent ignition and efficiency. Both the center and ground electrode tips are crafted from platinum, ensuring robust functionality and lasting value for your engine.

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 tapered seat type to ensure consistent ignition and improved engine efficiency.

The Iridium Power Spark Plug (ITF16) is engineered for unmatched performance and efficiency, featuring the world’s smallest 0.4mm Iridium Center Electrode for enhanced spark and maximum combustion. Its patented 360-degree laser welding ensures durability, while the U-groove and taper-cut ground electrode optimize flame propagation for superior ignition. Built to withstand extreme temperatures exceeding 4000 Deg F, this spark plug is burnished with nickel plating for exceptional corrosion resistance and high-temperature endurance. Designed for a wide range of applications, including classic and collector cars, it delivers superior performance with more horsepower, quicker starts, and fewer misfires under heavy loads. The advanced iridium technology enhances fuel efficiency, making it a cost-effective choice, while its low voltage requirement ensures reliable ignition with reduced energy consumption. Whether you’re seeking maximum power or improved fuel economy, this spark plug is built to perform under the most demanding conditions.

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: Designed 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: The advanced iridium technology of the DENSO Iridium Power spark plug contributes to better fuel efficiency, making it an economical choice for your vehicle.
• Low Voltage Requirement: This spark plug requires 5,000 volts less to fire compared to conventional spark plugs, ensuring reliable ignition with lower energy consumption.

Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles, engineered to meet strict Ford engineering standards for optimal performance and reliability. These spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption, and optimize emissions. They are resistant to oxidation and arc erosion, feature a multi-rib insulator to protect against misfire, and offer service intervals of up to 100,000 miles. Designed with high-quality materials, Motorcraft Spark Plugs ensure reliable performance for almost any application and are backed by Motorcraft’s Service Parts Warranty. They are an exact fit for Ford, Lincoln, and Mercury vehicles and help prevent false check engine lights, delivering the same performance and reliability as the original components installed during manufacturing.

Product Features:

• Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
• Backed by Motorcraft’s Service Parts Warranty
• Exact fit for Ford, Lincoln and Mercury vehicles
• Resistant to oxidation and arc erosion.
• Multi-rib insulator protects against misfire.
• Service intervals of up to 100,000 miles.
• Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
• Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
• Motorcraft ignition components help prevent false check engine lights.
• Enhanced Durability: Engineered to meet strict Ford engineering standards, these spark plugs are designed to provide long-lasting performance and withstand harsh conditions.
• Reduces Fuel Consumption: Specifically matched to engines to optimize fuel efficiency, helping you save on fuel costs.

The Copper Plus spark plug is engineered for dependable performance and long-lasting durability, making it an ideal OE-type replacement. Featuring a copper core center electrode, it ensures superior conductivity and precise heat control, which enhances overall wear resistance and extends the plug’s lifespan. Its nickel center and ground electrode tips provide excellent durability, while the standard design ensures compatibility with a wide range of vehicles. Built to ISO and SAE Standards, this spark plug resists fouling and offers superior corrosion resistance, ensuring reliable performance in various conditions. With its flat seat type and proven design, it delivers consistent ignition and optimal engine efficiency, making it a trusted choice for maintaining your vehicle’s performance.

Product Features:

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

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.

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 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
• High-Quality Copper Core: ACDelco Professional Conventional Spark Plugs feature high-quality copper cores, ensuring reliable performance and efficient operation.
• Nickel Center Electrode Tip: Designed with a nickel center electrode tip, these spark plugs provide durability and consistent performance.
• Outstanding Suppression Characteristics: These spark plugs offer excellent suppression characteristics, contributing to their reliable performance in various driving conditions.
• Premium Aftermarket Replacement: Manufactured to meet expectations for fit, form, and function, these spark plugs serve as a high-quality replacement for many vehicles on the road today.

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.

Product Features:

• E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn.
• Smoother Acceleration & Idle – The faster flame initiated by the spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
• Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
• Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
• E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
• The Spark Plugs are pre-gapped at the factory and cannot be adjusted.

Champion Double Platinum Power spark plugs are engineered for drivers seeking enhanced performance and durability. Featuring a fine-wire platinum center electrode and a platinum pad ground electrode, these spark plugs deliver exceptional wear resistance and sharper spark focus for reliable ignition. The V-trimmed ground electrode ensures precise spark delivery, while the exclusive Heat-Active alloy maintains optimal operating temperatures under all engine loads, ensuring consistent performance. Designed as an OE replacement, these spark plugs guarantee compatibility and dependable operation for your vehicle. With their advanced double platinum construction, they provide greater ignitability, improved fuel efficiency, and a longer lifespan, making them a premium choice for maintaining peak engine performance.

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 original equipment replacement, ensuring compatibility and reliable performance for your vehicle.

This premium spark plug is engineered to optimize your engine’s performance, ensuring a smoother and more efficient combustion process. Designed with advanced materials and precision manufacturing, it significantly boosts fuel efficiency and reduces emissions. Ideal for both everyday driving and high-performance applications, the Motorcraft High-Performance Spark Plug offers reliable ignition and long-lasting durability, making it a smart choice for maintaining your vehicle’s peak performance.

Product Features:

• Optimizes Engine Performance: The Motorcraft High-Performance Spark Plug is engineered to enhance your engine’s performance, ensuring a smoother and more efficient combustion process.
• Boosts Fuel Efficiency: Designed with advanced materials and precision manufacturing, this spark plug significantly improves fuel efficiency, helping you save on fuel costs.
• Reduces Emissions: By promoting a more efficient combustion process, the Motorcraft High-Performance Spark Plug helps reduce harmful emissions, contributing to a cleaner environment.
• Reliable Ignition: Ideal for both everyday driving and high-performance applications, this spark plug offers consistent and reliable ignition, ensuring your vehicle starts smoothly every time.
• Long-Lasting Durability: Built to last, the Motorcraft High-Performance Spark Plug provides long-lasting durability, making it a smart investment for maintaining your vehicle’s peak performance.
• Optimizes Engine Performance: The Motorcraft High-Performance Spark Plug is engineered to enhance your engine’s performance, ensuring a smoother and more efficient combustion process.
• Boosts Fuel Efficiency: Designed with advanced materials and precision manufacturing, this spark plug significantly improves fuel efficiency, helping you save on fuel costs.
• Reduces Emissions: By promoting a more efficient combustion process, the Motorcraft High-Performance Spark Plug helps reduce harmful emissions, contributing to a cleaner environment.
• Reliable Ignition: Ideal for both everyday driving and high-performance applications, this spark plug offers consistent and reliable ignition, ensuring your vehicle starts smoothly every time.
• Long-Lasting Durability: Built to last, the Motorcraft High-Performance Spark Plug provides long-lasting durability, making it a smart investment for maintaining your vehicle’s peak 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.

Product Features:

• Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles
• Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
• Durable construction – made from quality components to ensure reliable performance and a long service life
• Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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.

Product Features:

• Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles
• Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
• Durable construction – made from quality components to ensure reliable performance and a long service life
• Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience