Best Spark Plugs for 5.7 Hemi: Reviews & Buying Guide

The spark plugs come into play by supplying the ignition spark to ignite the fuel inside the combustion chamber. But this is not their only function: they also relieve the heat generated in the combustion chamber to the cooling system.

But if you have faulty spark plugs in your 5.7 Hemi, it’s time to find the best one for your vehicle.

Believe me, they are top of the line, you are looking for the best spark plugs for 5.7 Hemi. These spark plugs increase the workload of the engine and can provide power to the combustion chamber.

Best Spark Plugs for 5.7 Hemi

Best Spark Plugs for 5.7 Hemi

To facilitate your work, we have compiled a list of the best spark plugs for 5.7 Hemi. If you want a smoother and more enjoyable ride, check it out!

1. Mopar Chrysler Jeep Dodge Spark Plugs Mopar

For the 5.7 Hemi, this is without a doubt one of the best spark plugs, the packaging that comes with the kit is very clean. The best part of this spark plug is that you can get better mileage.

You will get a factory spark plug and the effect is amazing. When you drive a truck, you will know why this spark plug is worth it.

But before you buy, check to see if the spark plug fits your truck. These are the recommended spark plugs for the dodge ram 1500 5.7 Hemi.

2. Bosch Automotive 8162 Double Platinum Spark Plug

These spark plugs are puzzling as they work differently in each engine. They are excellent if you have a high-performance car. In this case, if you have a 5.7 Hemi, you can anticipate that they are very beneficial to the engine.

After installing them, you will notice that your vehicle starts faster. There will be no inconvenience or lag.

In addition, the vehicle will run better at higher speeds and respond faster. You can rely on the performance of these spark plugs and you will be able to use them for a long period of time.

3. NGK LZFR5C-11 Spark Plug

In the list of spark plugs, NGK has altered the laws of the game. It can produce the optimum spark needed to start the engine.

The list of the best 5.7 Hemi spark plugs would be incomplete without the NGK spark plug. It has a chrome base, so you don’t have to worry about it sticking.

It also doesn’t cost a lot of money. It’s a little short, but it’s great for the 5.7 Hemi. Because the spark plug core is composed of copper, you can estimate how long the spark plug will last.

4. NGK 2262 Spark Plug ZFR5F-11

Regardless of how many spark plugs you need, NGK spark plugs are always the best choice. They are excellent recommendations for your 5.7 Hemi.

Whether you have a Chrysler, Jeep, or Dodge, you can install these spark plugs to give your vehicle the best starting experience possible. Surprisingly, these spark plugs will improve your vehicle’s MPG.

A trivalent metal coating covers the spark plug. As a result, they are corrosion-resistant under all circumstances.

The spark plug features a pure aluminum silicate ceramic insulator for maximum heat conduction.

5. Spark plug NGK 5464 BKR5EIX-11 Iridium IX

The use of NGK spark plugs has other advantages. If you have driven your vehicle with spark plugs for a long time, you will notice a small improvement in fuel economy.

Since iridium is stronger than platinum, it should live longer than standard platinum spark plugs.

By applying the long insulating tip, there will be no contamination. There is also a triple sealing gasket. As a result, there is no gas leakage.

The thin iridium tip is very robust, and you will also notice an increase in throttle responsiveness.

6. Champion Spark Plug RE14MCC4 570 Copper Plus

These spark plugs are made of copper. On the other hand, this may be the best choice for the 5.7 Hemi.

Each cylinder of the 5.7 Hemi has two spark plugs. Depending on the brand, the spark plug must be changed every 30k miles.

So even if you have been buying platinum or lifetime spark plugs, there is no point.

Long-life copper spark plugs, such as Champion’s, are preferable, as the life is modest but the performance is excellent.

7. Champion 3570 Platinum Power Spark Plugs

Get the best possible spark plug for your valuable 5.7L engine system by shopping around.

In the end, we only have one more Champion option on the list. The 3570 differs from the previous RE14MCC4 in that it has several unique features.

The best spark plugs for the 5.7 Hemi Charger provide excellent power for compatible systems. Despite difficult circumstances, you will enjoy a smooth running experience.

8. ACDelco Professional Iridium Spark Plugs 41-993

ACDelco is a well-known brand in the auto parts business. Moreover, their best spark plugs for Dodge Ram 1500 provide a 5.7L engine power increase.

It is difficult to handle high-end options for conventional vehicle engines, as they are very complex. As a result, you can rely on the plug that has been selected for older systems.

9. APDTY Tune-Up Spark Plug Kit

This is the most popular spark plug on the market for all Dodge Ram 1500 5.7 Hemi owners.

After installation, the performance of the vehicle will improve significantly. All customers like is that the spark plug kit includes 16 different spark plugs, simplifying the installation.

10. Autolite AP5263-4OK Platinum Spark Plug

Platinum spark plugs are known for their strength and longevity. Installation takes 45 to 50 minutes, slightly longer than usual. Installation, on the other hand, is simple.

To increase durability and service life, the electrode tip of the spark plug is made of platinum.

Finally, because the tip is platinum, there will be no gap erosion. The center electrode emits faster and therefore accelerates faster.

In addition, if this component is installed, it will increase fuel efficiency.

What Are The Symptoms Of Bad Spark Plugs?

Driving with fouled or broken spark plugs can lead to a variety of engine failures. Signs and symptoms of a faulty spark plug include:

Engine Has A Rough Idle

When your spark plug fails, your engine will make a rough noise and run rough at idle.

This can cause vibrations to resonate throughout the vehicle, which can cause additional and costly damage to the vehicle.

Trouble Starting

You can’t get your vehicle to start and you’re late for work….. Is your battery completely dead? Do you think you’re about to run out of gas? Spark plug failure is a common cause of engine failure that is often ignored.

If you don’t have a crucial ignition spark, it will remain blocked until you do.

Engine Misfiring

When your engine has a problem, it will temporarily shut down and feel like knocking, which is caused by the cylinder not firing properly.

This can lead to an unpleasant driving experience, as well as increased emissions.

Engine Surging

This, again, can make the ride uncomfortable and perhaps dangerous. The engine’s operating efficiency is poor, and the amount of air it takes in during the combustion process is more than is normally needed, resulting in continuous braking as a consequence.

High Fuel Consumption

Do you consume more than before? Poor quality spark plugs can significantly decrease your fuel economy.

The solution is as simple as changing the spark plug.

Lack Of Acceleration

If your car is behaving strangely and the throttle has lost its sensitivity, you may consider a service involving the replacement of the spark plug to restore the vehicle to regular operation.

Guide to Buying Spark Plugs 5.7 Hemi

A 5.7 Hemi is already a fantastic engine, but if you want your car to handle better and accelerate faster, a new spark plug can be your best ally.

See below to find out how to choose the best spark plug for your 5.7 Hemi.

Spark Plug Type

It is important to be familiar with the specific characteristics of the many types of spark plugs available for your 5.7 Hemi. In the marketplace, there are three main types of spark plugs to choose from.

  • Copper spark plug
  • Platinum Spark Plug
  • Iridium Spark Plug

Size and fit

There are threads of 10mm, 12mm, 14mm, 16mm, 18mm. Choose a model that suits your needs.

Gap Style

The spark plugs are designed to fit a wide range of engine types, including diesel and gasoline engines.

If you want to be sure you are using the correct Hemi 5.7 spark plug, you must exercise extreme caution.

When using the Hemi 5.7, the optimum gap is 0.43 inches. Therefore, before purchasing a spark plug, make sure that the gap is sufficient.


How Many Spark Plugs Does 5.7 Hemi Have?

The 5.7 hemi has 16 spark plugs in the engine.

Why does the 5.7 Hemi have 16 spark plugs?

I have been able to locate a satisfactory explanation as to why our 5.7 Hemi engine has 16 spark plugs. “On one spark plug wire on each cylinder, there is an ignition coil assembly, and on the other spark plug wire, there is a regular spark plug wire”, according to the manual.

Does all 5.7 Hemi have 16 spark plugs?

Yes and no are the correct answers. Earlier versions came with 16 dual-combustion spark plugs as standard equipment.

However, as engine efficiency has increased over the years, some cars no longer require the use of 16 spark plugs.

Which is better, iridium or platinum spark plugs?

Compared to platinum, iridium has a higher melting point, higher strength, and higher hardness. However, continued use will eventually wear it out.

So before you go out and get the items you need, you should read the instructions.

How long do spark plugs last?

In most cases, the service life or maintenance period is 100,000 miles. The same can be said for platinum and iridium gears.

Several vehicles are available with a service interval of 120,000 miles.

Final Thoughts – Best Spark Plugs for 5.7 Hemi

The quality of spark plugs has a major effect on the performance of the engine as a whole. You should not, under any circumstances, reconsider your choice.

This is where our article can help you locate the best spark plugs for your Dodge Ram 1500 5.7 Hemi on the market today.

Our goal is to provide you with all the information you need to complete a successful transaction.

When you have a lot of good options, it can be difficult to choose one. However, we recommend that you consider the Mopar 5.7 Hemi spark plug.

Spark plugs are always accessible for any vehicle, including Jeep, Dodge, Ram, and Hemi. Every element of the purchase was worth the money.

Liam Dare

As CEO of, my passion for the automotive world motivates me to build online businesses that provide information and entertainment to users. I am proud to contribute in a positive way to the automotive community.