1953 Nash Ambassador Custom Spark Plugs

The Premium DiamondFire Automotive Spark Plug is engineered to deliver exceptional performance and efficiency for your vehicle. Featuring E3’s patented Diamond Fire edge-to-edge ground electrode, it ensures a faster, more complete burn for smoother acceleration and idle. The innovative “diamond-shaped” side wire electrode enhances combustion by quickly igniting the air/fuel mixture, resulting in a larger and faster flame kernel. This translates to improved power output – up to 6% on average – and better fuel efficiency, saving you money while reducing engine carbon deposits. Constructed with durable nickel center and ground electrode tips, this spark plug is built to last. Its gasket seat type ensures a secure fit, and the pre-gapped design eliminates the need for adjustments, making installation hassle-free. With its advanced technology, this spark plug not only boosts engine performance but also contributes to a cleaner, more efficient combustion process.

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.

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, and are the high quality replacements 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 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:

• 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
• Nickel Center Electrode Tip: Designed with a nickel center electrode tip, these spark plugs ensure efficient performance and longevity.
• Outstanding Suppression Characteristics: These spark plugs offer excellent suppression characteristics, contributing to their reliable performance in various driving conditions.
• Resistor Type with Gasket Seat: Equipped with a resistor type and a gasket seat, these spark plugs are designed for optimal performance and compatibility with a wide range of vehicles.

Copper Plus spark plug RJ12C delivers reliable 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. The nickel-tipped center and ground electrodes enhance conductivity while resisting fouling, ensuring smooth engine operation. Built to ISO and SAE Standards, this spark plug offers proven performance and superior corrosion resistance, making it a dependable choice for maintaining your vehicle’s efficiency. With a flat seat type and integrated resistor, it is designed to meet the demands of modern engines while providing excellent value and long-lasting functionality.

Product Features:

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

Autolite Copper spark plugs are expertly crafted to deliver reliable quick starts and the power your vehicle demands for optimal performance. Featuring a copper core center electrode, these 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 strength. With a corrosion-resistant nickel-plated shell, these spark plugs offer exceptional durability over time. Engineered to optimize fuel efficiency, they help you achieve better mileage while providing smoother acceleration for an improved driving experience. Meeting or exceeding Original Equipment Service (OES) design Standards, these spark plugs ensure high-quality performance and compatibility. The gasket seat type ensures a secure seal for optimal engine function, while the short projection standard center electrode design and nickel tip materials further enhance reliability. Ideal for regular-grade applications, these spark plugs are a dependable choice for maintaining your vehicle’s 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 efficiency, these spark plugs help you get the most out of every gallon.
• Smooth Acceleration: Experience smoother acceleration with Autolite Copper Core spark plugs, enhancing overall driving performance.
• OES Design Compliance: These spark plugs meet or exceed Original Equipment Service (OES) design requirements, ensuring high-quality performance.
• Gasket Seat Type: Featuring a gasket seat type, these spark plugs provide a secure and effective seal for optimal engine function.

Autolite Copper spark plugs are crafted to ensure quick starts and reliable performance, making them a dependable choice for your vehicle or application. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring consistent functionality. 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 boast superior corrosion resistance, offering durability over extended periods. The standard center electrode design with short projection and nickel tip material further contributes to their reliable performance. Ideal for regular-grade applications, these spark plugs are built with a flat seat type for secure installation. Whether you’re seeking enhanced ignition or long-lasting durability, Autolite Copper spark plugs deliver exceptional value and 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.
• The flat seat type design ensures a secure and precise installation, contributing to consistent and reliable performance.

Autolite Small Engine spark plugs are the perfect solution for keeping your outdoor equipment running smoothly and efficiently. Designed with a high nickel alloy center and ground electrode, these spark plugs deliver extended life and reliable performance for mowers, tractors, chainsaws, snowblowers, leaf blowers, and more. The multi-rib ceramic insulator minimizes the risk of flash-over, while the copper-glass seal ensures a gas-tight bond between the center electrode and terminal post for optimal functionality. Featuring a cold-formed steel shell with precision-rolled threads, these plugs offer enhanced durability and reduced wear, making them a dependable choice for regular-grade applications. With a flat seat type and short projection center electrode, they are engineered for consistent ignition and long-lasting performance. Trust these nickel-tipped spark plugs to keep your small engines operating at their best, season after season.

Product Features:

• Specially engineered high nickel alloy center and ground electrode provides extended life.
• It’s multi-rib ceramic insulator reduces danger of flash-over while its copper-glass seal bonds the center electrode and terminal post, providing a gas-tight internal seal.
• Designed with a cold-formed steel shell precision rolled threads that provide greater durability and reduced wear.
• Features a short projection center electrode and flat seat type, ensuring consistent ignition and reliable performance for small engines.
• Nickel-tipped ground and center electrodes deliver dependable functionality, making them ideal for regular-grade applications.

The Copper Plus spark plug delivers dependable performance and durability, making it an ideal OE-type replacement for small engines. Featuring a copper core center electrode, it ensures enhanced conductivity and precise heat control, promoting longer life and consistent wear. Built to ISO and SAE Standards, this spark plug resists fouling and offers superior corrosion resistance, ensuring reliable operation in demanding conditions. Its nickel center electrode tip and flat seat design further contribute to consistent performance, while the resistor type construction supports smooth engine functionality. Designed for accurate heat range control, this standard replacement spark plug is a cost-effective solution that combines proven performance with durability, making it a trusted choice for maintaining engine efficiency.

Product Features:

• Copper Plus – Dependable Performance and Durability
• OE type replacement plug
• Resists fouling
• 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
• Enhanced Conductivity and Heat Control: The Champion Copper Plus Small Engine Spark Plug features a copper core electrode that ensures increased conductivity and effective heat control, promoting good overall wear.
• Consistent Performance: With a nickel center electrode tip material and a flat seat type, this resistor type spark plug ensures consistent and reliable performance for small 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

Ensure consistent ignition and optimal engine performance with this high-quality spark plug. Designed to deliver reliable starts and smooth operation, it enhances fuel efficiency and reduces emissions, making it an essential component for maintaining your vehicle’s peak performance. Built with durable materials, it withstands extreme temperatures and resists wear, ensuring long-lasting functionality. Its precision engineering guarantees compatibility with a wide range of vehicles, providing a perfect fit and hassle-free installation. Whether you’re replacing a worn-out plug or upgrading for better performance, this spark plug offers exceptional value and reliability for your automotive needs.

Product Features:

• Delivers consistent ignition for smooth engine operation.
• Enhances fuel efficiency and reduces emissions for environmentally friendly performance.
• Built with durable materials to withstand extreme temperatures and resist wear.
• Precision-engineered for compatibility with a wide range of vehicles.
• Offers hassle-free installation with a perfect fit for reliable functionality.

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