9 Recommended Spark Plugs For Dodge Ram 1500 5.7 Hemi

Willing to power up your dodge ram? Well, that can't be possible if the engine lacks some solid spark plugs. Did you know that these plugs, despite being small in size, work as the lightning bolts that boost your engine's power?

Moreover, they are the reason behind the rapid and quick start. So, to ignore being stuck on the highway after midnight and trying hard on that ignition while having scary thoughts in your mind, it's better to solve the problem right from its roots.

Recommended Spark Plugs For Dodge Ram 1500 5.7 Hemi

source: blog.moddedeuros.com

So, if you're not sure what plugs to choose, then we have assembled a list of recommended spark plugs for Dodge Ram 1500 5.7 Hemi for your ease. And on top of everything! You can also find useful tips and answers to some of the most frequently asked questions that will help you pick the right plug for your vehicle.

Best Spark Plugs For 5.7 Hemi [Table]

Product Name

Core Material

Top Material



NGK ILKAR7B11 Laser Iridium Spark Plug

NGK (4912) ILKKAR7B11



MOPAR 5.7 Liter Hemi NKG Nickel Spark Plugs

MOPAR 5.7 Liter Hemi



ACDelco Gold 20 RAPIDFIRE Spark Plug




Autolite Platinum Spark Plugs AP5325

Autolite AP5325



Bosch Double Iridium 9673 Spark Plug (Pack of 4)

Bosch Double Iridium 9673

Iridium, Copper, and Nickel-Yttrium


Recommended Spark Plugs For Dodge Ram 1500 5.7 Hemi Reviews

Do you want to know what brand of spark plugs does dodge use? Or in other words, what plugs could serve your Dodge's engine in the best way possible. Then here is the list of the 9 highly-suggested plugs we have gathered after days of research.

#1. NGK ILKAR7B11 Laser Iridium Spark Plug

NGK ILKAR7B11 Laser Iridium Spark Plug

Are you looking for some Original Equipment (OE) spark plugs for your dodge? Well, the NGK ILKAR7B11 could be one of your best spark plugs for a 5.7 Hemi engine. That means it's a great match for your dodge.

On reviewing the NGK Laser, we found that it is made to offer high performance and durability. With iridium, that's six times proficient as compared to platinum plugs, provides some of the robust ignitability you can ever imagine.

These plugs have a center filled with tiny electrodes that generate electric current with a minimum voltage. So, you can expect reliable and more consistent sparks whenever you turn on your car.

NGK Laser Iridium spark plug also has some other remarkable features, including:

  • The iridium on the tip is carefully laser welder to assure a powerful spark
  • The tail of the ground electrode has a welded platinum disc to assure longevity
  • NGK laser iridium spark plug comes with an enhanced insulator nose that restricts fouling
  • Likewise, the plug is designed with corrugated ribs that prevent avoid flashover
  • Its triple gasket seal hinders any combustion gas leakage


  • NGK Iridium spark plug allows you to experience immediate starts and rapid acceleration
  • It's a corrosion-free spark plug due to triple metal coating
  • This plug helps increase the mileage and reduces emissions
  • NGK iridium plug is compatible with several other cars


  • The extremely fragile ceramic that can be cracked if not handled with care
  • This spark plug sometimes misfire

When you're installing new spark plugs, make sure to change one at a time. And always clean each new plug before fixing it as it might have unwanted particles that would hinder the spark. Also, clean the cylinder using a soft microfiber cloth to remove carbon elements to avoid any performance complications.

#2. MOPAR 5.7 Liter Hemi NKG Nickel Spark Plugs – Pack of 16

MOPAR 5.7 Liter Hemi NKG Nickel Spark Plugs

Are you looking for some best spark plugs for 5.7 Hemi ram? Well, this set of 16 plugs can do wonders to your Chrysler Jeep Dodge, and other ram trucks. And most importantly, it's a one-time purchase that leaves your mind in tranquility for numerous days.

Plus, it's an OEM product, which means you can trust its performance and fitting without any doubt. This also assures that it can easily replace the original set that comes with your ram or any other vehicle with a Hemi engine.

Moreover, it's a nickel-made spark that gives an extra coat of life to the overall durability.

Some of its essential features are:

  • This Hemi NKG comes with 16 high-performance spark plugs
  • All plugs gas anti-seizing coating to prevent adhesion and friction that reduces durability


  • It's an original MOPAR plug that is compatible with most of the vehicles including the Dodge Ram 1500, Chrysler 300 (2009) model, and many more
  • Each plug is pre-gaped at .040 and fits effortlessly that saves time and money
  • These plugs can serve up to 30,000 miles


  • Although they are pre-gaped plugs, you might need to adjust the gap every time you replace the new one

Inspect your new spark plugs to assure they aren't damaged or fouled. Or else they could lead to a series of problems, such as slow acceleration, decreased fuel mileage, and misfires.

#3. ACDelco Gold 20 RAPIDFIRE Spark Plug

ACDelco Gold 20 RAPIDFIRE Spark Plug

Whether you own a modern vehicle, or you're a fan of the classics, if the engine's powerful performance is your ultimate goal. Then ACDelco 20 RAPIDFIRE spark plug is compatible with most of your desirable vehicles, especially ones with a hem engine.

It's a premium quality plug with an excellent suppressor to prevent your vehicle from misfiring. And as we reviewed, we found that it has a pure copper core that assures longevity. More to this, these plugs come with a two-piece glass and brass seal that works flawlessly to eliminate radiofrequency.

And most essentially, it never keeps you stuck in the middle of the road, as the product produces supreme sparks that turn on the engine without a hitch.

ACDelco 20 RAPIDFIRE spark plugs are comprised of other fascinating traits. For instance:

  • It is made with a solid-state suppressor that comes with dual brass and glass seal to decrease radiofrequency interference
  • ACDelco 20 possess a genuine copper core that allows rapid heat transference
  • This plug has a platinum center electrode that reduces the ignition's voltage requirement


  • With ACDelco 20, your vehicle starts within a single attempt as even a little spark is enough to deliver the required voltage
  • Due to solid manufacturing, this spark plug stays corrosion-free
  • The plug has great persistence and it helps improve the driving experience


  • These plugs are a bit longer than the standard size which troubles during the installation process

Only use best spark plug wires for 5.7 Hemi. Also, try to replace them one by one in the exact routing like the old ones.

#4. Autolite Platinum Spark Plugs AP5325 (Pack of 4)

Autolite Platinum Spark Plugs AP5325

The Autolite Platinum plugs are undoubtedly popular among regular drivers. So here's another pack of 4 best spark plugs for 5.7 Hemi that always keeps you moving. Each plug contains a wire platinum firing tip right at the center.

More to this, there's a nickel alloy electrode to help maintain a particular gap to assure fewer adjustments. That means you can expect minimum misfires, limited gap erosion, longevity, and extraordinary performance.

And above all, you can enjoy high acceleration whenever you're on the road.

And that's not it. By carefully analyzing this product, we found some other useful attributes, such as:

  • These plugs have undergone platinum ball welding procedures to assure a non-breakable point of contact for an increased adhesion
  • All plugs are ideal for transferring heat quickly as they are great Yttrium conductors
  • Autolite Platinum plugs have a necked-down center electrode that consumes less voltage and offers speedy starts


  • These are OEM replacement spark plugs that work flawlessly with numerous car types and models
  • AP5325 are usually pre-gapped for .044 and easy to install without wasting hours on adjustments


  • Some users find incorrect gaping size. In such a scenario, you are required to fix the problem using a gaping tool

#5. Bosch Double Iridium 9673 Spark Plug (Pack of 4)

Bosch Double Iridium 9673 Spark Plug (Pack of 4)

Bosch has been a prominent auto parts manufacturer in Germany since 1902. However, its spark plugs are celebrated worldwide.

One of its masterpieces includes the Double-Iridium 9673 spark plugs which are guaranteed some of the best spark plugs for Dodge ram Hemi. Embedded with a ground electrode and dual iridium firing pin, you can appreciate using them for long durations.

Likewise, if you are concerned about performance and ignitability, then hold your breath because these plugs have an extended efficiency as compared to copper spark plugs. Plus, the 360-degree laser-welded technology has enhanced the service life up to 7-years.

Bosch Double Iridium spark plugs are also cram-full of a few other features. For instance:

  • These are pre-gapped spark plugs that fit easily and give outstanding performance on countless new and old cars
  • Bosch 9673 dual-iridium plugs consist of ribbed insulator structure and design that hinder flashover (no more leaky insulators)


  • These are highly durable plugs, which saves you from repeating the plug-replacement cycle
  • Remarkable heat transferring capability as the ground electrode is instilled with a premium copper core
  • Anti-seize nature due to nickel-plated shelling
  • There's no need to adjust the gap during installation
  • Exceptional shield against corrosion


  • Average performance on heavy-duty vehicles (HDVs), such as trucks and buses

#6. NGK V-Power Spark Plug - ZFR5F-11, 1 Pack

NGK 2262 V-Power Spark Plug - ZFR5F-11

Here's another biggie from NGK. Engineered to resist and transfer excessive heat in contrast with peers, the NGK 2262 spark plug ensures increasing your overall car's performance as soon as it is installed.

Moreover, the plug has the potency to overcome pre-ignition problems and ceases the premature combustion in the engine. We also researched that this plug enables you to get rid of carbon build-ups, which are usually found in older engines.

The NGK 2262 is made with high-quality alumina ceramic to assure electrical insulation. And additionally, it includes a triple gasket sealing technology to prevent combustion gas leaks, whereas, it's elongated insulator design prevents your car from misfiring.

Above all, this NGK's plug also has some other fascinating facts, such as:

  • It's a V-grooved type spark plug that allows your car's engine to start on limited voltage
  • NGK 2262 has a three-layered metal plating to provide superior anti-seizing and anti-corrosion properties
  • This spark plug comes with corrugated ribs to avert leakage


  • It's an OEM-recommended spark plug that goes with most of the vehicles
  • The plug offers better heat transfer due to alumina silicate ceramic insulator
  • It supports a wide range of Hemi engine cars
  • NGK 2262 takes a few minutes to be installed


  • NGK 2262 spark plugs are impermanent and only lasts up to 10,000 miles

#7. Denso IW16TT Iridium TT Spark Plug

Denso IW16TT Iridium TT Spark Plug

Cheers to the combo of two latest technologies in a single spark plug. Yes! The Denso IW16TT is manufactured using platinum and iridium with a 360-degree laser welding method to assure 100,000 miles coverage.

And as we researched more about the 'TT', we found that this spark plug has a Twin-Tip technology to enhance spark energy. That means you don't have to worry about being stuck in the middle of the road, as this spark plug is always there to supply enough current to make sure your car is easily turned on in a single shot.

Denso TT is one of its kind as it features the world's tiniest iridium center electrode of 0.4 mm. Also, its needle tip ground electrode sizes to 0.7mm. These two components signify that there is maximized ignitability and lowest spark interference.

And you're lucky because the Denso IW16TT has some useful qualities, including:

  • This spark plug consists of five-rib insulators that block flashover
  • It has a copper-glass seal bonded center insulator and electrode that works as a powerful gas-tight seal
  • The plug is claimed to have a 100% alumina powder insulator to provide unique force and intensified thermal resistivity


  • Denso TT spark plug is easy to install and remove as it comes with machine-rolled threads
  • The plug is ideal for preventing seizing and offers better torque and gas mileage
  • It's durable because of the patented alloy that produced with an utmost iridium concentration


  • Be extra cautious when installing the plug as the center and ground electrode breaks easily

#8. Champion RE14MCC4 Copper Plus Spark Plug (Pack of 1)

Champion RE14MCC4 Copper Plus Replacement Spark Plug

This plug is best for replacing most of the copper plugs. And do you know why? Because more platinum means more power! The Champion RE14MCCA offers outstanding performance because of the double-platinum coating.

Made to resist and transfer high heat levels, this spark plug has a heat-active alloy nature that assures smooth starts. If you dig deep, you would find that its center electrode is mechanically wrapped with a strong platinum fine wire, whereas, the ground electrode comes with an excellent quality platinum pad.

This assures that every little spark could meet and bear the highest temperature possible whether it's a 5.7 Hemi ram or any other car.

Also, this copper plus replacement comes with other characteristics, like:

  • Champion RE14MCC4 has a copper core center electrode with platinum wiring to manage the highest temperatures and durability
  • It comes with a patented shell with an 'Ultraseal' coating that helps increase the corrosion resistance power
  • This spark plug has a SAC-9 patented semi-conductor resistant to assure greater suppression


  • Highly recommended and best spark plugs for 5.7 L Hemi Enhanced heat conductivity and control
  • The plug has a long life and it's good for at least 30,000 miles


  • These are not pre-gaped plugs, so expect playing with the adjustments for a while before installing it
  • The plugs may fit loose as the anti-seize threading doesn't support all engines

#9. E3 (E3.68) Automotive Spark Plug

E3 (E3.68) Automotive Spark Plug

The E3.68 spark plug is engineered for a wide range of vehicles, especially the one that supports Hemi engines. This plug allows you to savor better mileage, power, and one-go starts. The E3.68 is designed using the DiamondFire technology to hinder air-gap leaks to witness a full-scale spark path.

This trait exposes sparks more directly on the piston's head. Besides, the plug reduces carbon monoxide and hydrocarbon discharge to secure the engine's health.

E3.68 spark plug also consists of some additional valuable characteristics i.e.

  • This plug is comprised of Yttrium alloy that reduces 8% wire temperature to provide minimum pre-ignition
  • It has three insulator leg sections to promote first-rate heat transfer and to produce extreme turbulence within the cylinder.
  • The electrode is carefully attached to the shell for better spark transportation


  • Edge-to-edge faster spark discharge that makes you unstoppable on the road
  • This automotive spark plug offers improved fuel efficiency
  • It resists fouling and allows you to experience high acceleration
  • Excellent corrosion protection due to nickel-plated terminal end


  • The mileage appears to reduce after 28,000 miles along with noticeable power loss and acceleration
  • Random misfiring and complicated installation process

How to Choose Spark Plugs for Hemi Ram Engine (Buying Guide)

Whether you are looking for some best spark plugs for dodge ram Hemi or any other vehicle, you should know the essential details to make sure you are buying the right plug. And guess what? You don't have to be an expert. All you need is some general information about a few factors.

So, try to look for the following features when picking the right spark plug.

a.  Know Your Desired Material

When selecting some awesome spark plugs, be sure that the material you're choosing goes with your engine. Remember, if you have an older vehicle, then copper plugs would turn out to be great. Contrarily, platinum and iridium plugs are most appropriate for modern engines. And no wonder, these spark plugs offer excellent performance and mileage. Moreover, they are durable and have long-lasting effects.

b.  Plug's Compatibility with Your Engine

Spark plugs come in different sizes, but not all of them would fit the engine. Despite choosing the material, the next thing is to assure if the plug is harmonious with your engine? Otherwise, it would be a waste of time and money.

And as long as the compatibility matters, good spark plug brands will always indicate the best-suited car models for which the product is compatible. For example, on our list, all plugs are compatible with Hemi engines.

c.  Easy Installation Process

Hiring a professional mechanic to change the plugs? No way! Plugs should be more of a DIY thing. So try to look for the spark plugs that come with a manufacturer's installation guide. It will help you save some bucks to give yourself a treat later.

d.  Gap – Fixed or Adjustable

It depends on your expertise. If you have been into installing and removing spark plugs for quite a while, then you can go for the adjustable gaps. Because in this case, you have to adjust the gap according to your engine's requirement.

On the other hand, if you are puzzled and don't want to jump into the hardware stuff, then it is suggested to go for the fixed gap ones. However, order an accurate size, or else you will need to get new plugs again.

e.  Good Heat Conductors

And lastly, go for the highest heat conductor spark plugs if you want to experience enhanced power, quick starts, and high acceleration.


#1. Why most modern Hemi consists of multiple spark plugs per socket?

The reason why modern Hemi engines have two spark plugs for each cylinder is to help improve combustion, speed, and cleaner emissions. Besides, it burns fuel in a balanced pattern that offers great mileage.

#2. Do spark plugs affect the overall engine's performance?

Spark plugs are the core reason to transfer the spark that is responsible for igniting the air/fuel mixture. The process creates an internal explosion and allows your engine to produce power. But over time, sparks get weaker and the engine receives inadequate explosions, which results in misfiring and sometimes a complete engine failure. That's why it is crucial to immediately change the plugs to keep your engine safe and healthy.

#3. How do I know if I need to change my car's spark plugs?

You should immediately change the spark plugs if you notice that your car is taking more time to start or the engine misfires. In the same way, if you're getting poor fuel economy, or experiencing reduced acceleration, then it's time to get the new plugs before there's a seized engine.

Finding extraordinary spark plugs is surely not a piece of cake. You should have at least a basic understanding of important elements to look for in the plugs. So to make things easy for you, we have given the recommended spark plugs for Dodge Ram 1500 5.7 Hemi. However, most of them are compatible with all the Hemi engines.

Nevertheless, our Top-3 picks are NGK Laser Iridium, Bosch Double Iridium 9673, and ACDelco 20 RAPIDFIRE spark plugs. Why? Because they have great durability and engineered with superior materials, such as platinum and double-coated iridium that offer countless advantages in the long run.

Jose Wagner

I'm Jose Wagner, a mechanic who loves exploring & writing about new tools and contraptions which make everyone’s lives a whole lot easier. I have been in the manufacturing industry for several years and possess sound mechanical knowledge and diagnostic skills.

Click Here to Leave a Comment Below 0 comments