20 Best Spark Plugs For 5.7 Hemi Charger (2023 Updated)

Starting with a single product in 1936, NGK became the world leader in innovation, technology, and premium quality in the manufacture of spark plugs for virtually every automotive manufacturer in the world.

NGK`s extraordinary growth can be attributed to a philosophy of manufacturing the product where it is going to be used, which means a substantial number of products sold in the USA are made in America.

One of the benefits of such a policy is the ability to work closely with manufacturers in developing products tailored specifically to their needs.

Introducing the ultimate evolution in spark plug technology and performance. Superior to Platinum, NGK Iridium spark plugs benefit from their unique patented design which features: A Super Fine Centre electrode (0.

6mm), reducing voltage requirements, minimizing flame quenching and allowing for a stronger spark. New Iridium material with superior anti-oxidation, anti-corrosion and extremely high melting point characteristics.

Unique 2 stepped centre electrode – a secondary micro discharge burns off carbon deposits as they form. Minimized gap growth between electrodes, giving longer life. Tapered Cut Ground Electrode ensures an excellent flame spread and improved vibration resistance.

It is the combination of these designs in NGK’s Iridium spark plugs that allows your engine to run more efficiently, producing cleaner exhaust emissions and more power though better ignitability.

NGK Traditional Spark Plug is manufactured to enhance the performance of the vehicle. It is constructed from durable material that is corrosion and abrasion resistant. The Spark plug insulators are made of 99 percent pure alumina silicate, allowing for longer insulator noses for reduced fouling.

This Spark plug features a triple gasket sealing process that eliminates fuel leakage. It also includes a solid copper core that provides superior heat dissipation and conductivity. This Spark plug has resistor that is produced with a glass and carbon mixture, which is fired to ensure superior performance and durability.

It has corrugated ribs that prevent flash over and cold rolled threads to inhibit damage to the cylinder head.

The secret of the new Iridium IX spark plug is the laser welded electrode made of iridium. Through its “minimal” diameter of only 0. 6 mm it bundles ignition voltage. The Advantages of Iridium IX spark plug at a glance The optimum ignition characteristics of Iridium IX spark plugs prevent sooting in stop and go traffic.

Misfire or misfiring can be prevented. This reduces emissions and conserves (if any) the catalyst and the environment. The Iridium IX spark plugs ensure “round” engine running, increase the driving experience through better acceleration and thus offer greater driving pleasure.

The Iridium IX spark plug keeps at least twice as long as any normal spark plug. Frequent change of spark plugs are so “out”. This in turn reduces the cost. Highest ignition reliability, uniform combustion, optimum engine performance, throttle response are the result of modern technology and reduce fuel consumption.

The optimized electrode shape reduces the ignition voltage, protects the engine and assures a “round” run.

Laser Iridium Compared to Standard Spark plugs, NGK Laser Iridium provides a superior fuel burn combined with a longer service life. With 6. 5 on the ‘Mohs’ hardness scale, Iridium is the second-densest element to exist (after Osmium), yet it’s also the most corrosion-resistant metal (even at temperatures as high as 2000? C ).

Thanks to Iridium’s excellent electrical conductivity properties, it’s the perfect metal element to include in the manufacture of premium spark plugs. The laser welded platinum disc on the ground electrode provides extra durability, once again improving service life and bringing the wear rate down to a minimum.

With both electrodes working in harmony together, your engine will have a more stable idle with superior anti-fouling, improved fuel efficiency and lower emissions. Another great feature is that the ground electrode is also taper cut, in simple terms, this is done to reduce as much obstruction as possible to the flame expansion (this reduces quenching) as it starts to burn from the electrode tips.

This allows for a more complete, efficient burn which in turn increases MPG. Features Laser welded Iridium centre electrode tip Laser welded Platinum disc on the ground electrode Trivalent metal plating for superior anti-corrosion and anti-seizing properties Faster starts and smoother acceleration Superior anti-fouling Lower required spark voltage, great for those colder mornings Tapered ground electrode improves flame expansion from the initial spark Better fuel economy and lower emissions Factory fitted equipment in many of today’s vehicles (OEM Approved Design) Outstanding quality as you come to expect from NGK.

Proven track record and used in millions of vehicles around the world.

It provide high ignitibility and longer service life. Dual platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions.

OEM Quality. Whether you have a 2008-2013 4. 7L Dodge RAM 1500 or a 2009-2013 5. 7L Dodge RAM 1500, NGK’s Standard Spark Plugs are an ideal choice for your truck. They not only offer a quick and easy start with improved ignitability, but they also provide performance gains like a better idle and fantastic acceleration.

With lower emissions and increased fuel mileage, these spark plugs strengthen almost every part of the running of your engine. With a consistent, OEM-quality performance and look, these spark plugs will give you everything you’ve been looking for and more.

Triple Gasket Sealing. Constructed from the most durable materials available and carefully assembled for advanced precision, NGK’s Standard Spark Plugs are made to last. The plugs are finished with a triple gasket sealing process, ensuring they remain top-notch and high-performing for a long time to come.

MSD iridium spark plugs will fire up your engine for optimum performance. These plugs have been engineered from the inside out for efficient combustion to create the most power possible for your setup.

MSD’s proprietary design features center tips made from iridium–a super hard material that promotes the best spark as well as increased resilience. They also feature copper center cores, special ceramic material to enhance the dielectric strength of the plug housing, and machine-ground straps enhanced with Yttrium to handle the heat of your high horsepower ignition.

On the street, at the track, or up and over the trails, MSD iridium spark plugs will outperform and outlive the competition.

G-Power Platinum Alloy Spark Plugs offer superior performance with improved fuel efficiency, lower emissions, and quicker starts. 0. 6mm laser welded fine platinum tip reduces required voltage ensuring high durability and a consistently stable spark.

Special configurations are used for the insulator noses to improve throttle response and prevent fouling with corrugated ribs on insulator to prevent flashover. Platinum alloy ground and center electrode for greater spark while ensuring precise gap during the life of the plug.

Trivalent metal plating offers superior anti-corrosion and anti-seizing properties while the triple gasket seal eliminates combustion gas leakage. Simply the best platinum spark plug at an economical cost.

NGK Standard Spark Plug is manufactured to enhance the performance of the vehicle. It is constructed from durable material that is corrosion and abrasion resistant. The Spark plug insulators are made of 99 percent pure alumina silicate, allowing for longer insulator noses for reduced fouling.

This Spark plug features a triple gasket sealing process that eliminates fuel leakage. It also includes a solid copper core that provides superior heat dissipation and conductivity. This Spark plug has resistor that is produced with a glass and carbon mixture, which is fired to ensure superior performance and durability.

It has corrugated ribs that prevent flash over and cold rolled threads to inhibit damage to the cylinder head.

PRODUCT OVERVIEW: NGK Spark Plugs (U. S. A. ), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist.

With over 80 years of automotive expertise NGK has built a reputation for quality and reliability; manufacturing spark plugs for virtually every automotive, motorcycle, marine and small engine application.

– ITEM DESCRIPTION:Shell – Thread Diameter: 12mm – Thread Pitch: 1. 25mm – Seat Type: Gasket – Reach: 26. 5mm (1. 04 inch)Hex.

Bosch Double Iridium Spark Plugs are engineered to deliver both high performance and long life representing the best of OE spark plug technology. The ultrafine wire design and laser welded tapered ground electrode deliver optimum performance while the iridium center electrode firing pin and iridiumplatinum alloy inlay in the ground electrode help it to go the distance.

Unlock the performance in your engine with Bosch Double Iridium Spark Plugs.

For automotive, motorcycle and marine engines. Unique copper core and exclusive electrode design assures fast starts, peak performance and long life. Chosen by more engine builders and car makers than any other.

The source for serious power. Sold in standard packs only. Package subject to change.

Laser Iridium Compared to Standard Spark plugs, NGK Laser Iridium provides a superior fuel burn combined with a longer service life. With 6. 5 on the ‘Mohs’ hardness scale, Iridium is the second-densest element to exist (after Osmium), yet it’s also the most corrosion-resistant metal (even at temperatures as high as 2000? C ).

Thanks to Iridium’s excellent electrical conductivity properties, it’s the perfect metal element to include in the manufacture of premium spark plugs. The laser welded platinum disc on the ground electrode provides extra durability, once again improving service life and bringing the wear rate down to a minimum.

With both electrodes working in harmony together, your engine will have a more stable idle with superior anti-fouling, improved fuel efficiency and lower emissions. Another great feature is that the ground electrode is also taper cut, in simple terms, this is done to reduce as much obstruction as possible to the flame expansion (this reduces quenching) as it starts to burn from the electrode tips.

This allows for a more complete, efficient burn which in turn increases MPG. Features Laser welded Iridium centre electrode tip Laser welded Platinum disc on the ground electrode Trivalent metal plating for superior anti-corrosion and anti-seizing properties Faster starts and smoother acceleration Superior anti-fouling Lower required spark voltage, great for those colder mornings Tapered ground electrode improves flame expansion from the initial spark Better fuel economy and lower emissions Factory fitted equipment in many of today’s vehicles (OEM Approved Design) Outstanding quality as you come to expect from NGK.

Proven track record and used in millions of vehicles around the world.

You can depend on NGK for quality and reliability Built to OEM specifications Features trivalent metal plating which offers long lasting durability Increases fuel economy and lowers emissions Corrosion resistant NGK V-Power Spark Plug is designed to improve ignitability even in lean burn conditions and the performance of the vehicle.

It is constructed from durable material that is corrosion and abrasion resistant. This Spark plug is highly durable against electrical and chemical wear. It features increased fuel economy and lower emissions.

This Spark plug lowers ignition system voltage requirements and ensures longevity.

Laser Iridium spark plugs provide superior ignitability and long service life. Smallest tip diameter available Iridium / Platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions.

Laser welded Iridium center electrode tip ensures high durability and greater spark. Platinum disc welded to backside of ground electrode provides long life. Longer insulator nose prevents fouling, Corrugated ribs on insulator prevents flashover, and the triple gasket seal eliminates combustion gas leakage.

Faster starts and quicker acceleration. Better fuel economy and lower emissions, Trivalent Metal Plating for superior anti-corrosion and anti-seizing.

Often specified as original equipment, NGK Laser Iridium spark plugs are the best combination of performance and longevity. Iridium tip is six (6) times harder than platinum providing the strongest ignitability and the longest life possible.

Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in DIS ignition systems. OE engineered for specific vehicle applications.

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling. The 0. 6mm laser welded fine iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect.

Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage. Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today’s high-performance engines.

Trivalent metal plating has superior anti-corrosion and anti-seizing properties.

Ngk iridium ix spark plug is designed to offer extreme ignitability, improved throttle response and superior anti fouling capacity. It is constructed from durable material that is corrosion and abrasion resistant.

This spark plug features a fine iridium tip that ensures high durability. It ensures longevity and can easily be installed.

Feature and Benefits: Iridium tipped center electrode provides durability six times harder than platinum. NGK’s high-grade pure alumina ceramic and 98% pure copper core prevents the spark plug from overheating while providing reliable starts.