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Best Spark Plugs for 5.7l Hemi Reviewed 2021


In simple terms, the spark plugs are the small bolt that assists the engine of your vehicle to generate power. When you have a 5.7 Liter Hemi, you need to be careful about the choice of a spark plug. The choice of bad spark plug results in reduced efficiency and other concerns.  With the choice of one of the best spark plugs for 5.7l hemi, there will be a smooth burn of compressed fuel and air combination. 

These plugs provide electric current into the combustion chamber. Now there is no need to change the spark plug multiple times once you install the best quality plug for your 5.7 L Hemi. Now let’s go through the details of the best :

1. Chrysler Jeep Dodge Ram 5.7 Liter, Set of 16:

In terms of outstanding features, this product is the recommended spark plugs for dodge ram 1500 5.7 hemi. There are 16 spark plugs in the pack that are useful for driving the engine of your 5.7L hemi. The package which comes with this kit is nice and neat. You will find the exact part numbers mentioned so that you will not have any confusion.  


These spark plugs have one great feature i.e. it is it provides enhanced mileage to your engine. With its installation, there will be an improvement in the efficiency of the engine. After adding it to your vehicle, you will surely find improvement in mileage. Another great feature is it comes with wide compatibility.  It works perfectly with various vehicle models of dodge ram 1500 from 2009-2013.

From this pack, you will receive factory type plugs that perform efficiently. All these plugs come cushioned for protection. Moreover, the design is high-grade and the construction is durable. At a reasonable price, this pack is a perfect OEM replacement. Without spending excessively, you get the best spark plugs for 5.7 hemi.


  • High-grade nickel for durability
  • Comes in 16 set pack to provide a perfect fit 
  • Comes cushioned for protection
  • Reasonable price for the features
  • Long lifetime
  • Increases mileage of the engine


  • Some plugs need a topside creeper 
  • You need to use the perfect socket 

2. APDTY 141491 Spark Plug & Ignition Wire Tune Up Kit: 

When it comes to efficient combustion, this APDTY kit includes the best spark plugs for a 5.7l hemi. For 5.7L Hemi on your vehicle, there is no need to concern about mileage. This is because this kit includes plugs that boost the mileage of the engine without any compromise in the performance. 


This APDTY kit comes with one great feature i.e. it can work well with various vehicles without any issues on fit. For example, you can use it for 5.7L Hemi on the 2005 Chrysler 300 dodge magnum. Also, you can use it on the 2005 model Jeep Grand Cherokee. Many people use this kit to replace SPLZTR5A13 and 4606701AF.

The kit contains 16 spark plugs, 8 ignition coil boots, and 8 ignition wires. All these components facilitate ease of installation without any hassles. Within very little time, you can finish the setup process and guarantee a perfect fit. Weighing just 1 pound, it feels convenient during installation.  Another great feature of these spark plugs is their exterior is ready to paint if required.


  • Quick and easy installation
  • Increases combustion efficiency of a vehicle
  • Comes with all necessary accessories
  • Lightweight and portable
  • Comes with wide compatibility


  • Some misfire issues

3. APDTY Tune Up Kit Includes 16 OEM Spark Plugs:

For every Dodge Ram 1500 5.7 Liters Hemi users, these spark plugs are very useful. They are easy to install and provides great performance. The included spark plug wires for 5.7 hemi provide ease of installation. The kit includes 16 spark plug, 8 coil on the plug boots, and 8 ignition spark plug wires. All these components help you to easily and quickly install in your vehicle. 

The spark plugs present in this pack have one great feature i.e. they are very easy to install for beginners. In case you are fed up with running wires or if you want the process to be neat then go for this kit.


In case you are noticing that your truck is operating terribly then once installed, there will be a great improvement in the overall performance of the vehicle. Another great feature of these 16 spark plugs is they provide the perfect fit. Once installed properly, they do not move or come out abruptly. Furthermore, the coil on plug boots denotes 8 in numbers. Generally, for the basic tune-up, everything you require is present in the set. Hence, you don’t need other accessories for installation.


  • All required tools for installation are included
  • No running wires required 
  • Simple and neat installation 
  • Does not feel bulky during setup
  • Improves engine performance


  • Takes some time to install

4. Autolite AP5263-4PK Platinum Spark Plug, Pack of 4: 

The reduction in performance results in fuel waste and many other issues. Now you can get rid of these issues for your 5.7L Hemi with this pack of 4 spark plugs. These platinum spark plugs come with a center wire platinum firing tip. This tip reduces gap erosion and reduces the chances of misfires. As a result, it leads to a boost in the overall performance. 


One great feature of these Autolite spark plugs is they are durably built. There is the use of the high nickel alloy in the side electrode. It helps to maintain an accurate gap. The full platinum tip ensures virtually no gap erosion. 

The center electrode ignites very quickly. Therefore, you will benefit from acceleration. Furthermore, the economy will be enhanced after installation. It is found that the seat type is tapered and the diameter of the thread is 14 mm. In the long run, you will not find any gap erosion because the tip is made up of platinum.  When you desire decent performance along with a boost in mileage of your vehicle, you can go for this pack of spark plugs.


  • Sturdy and durable platinum tip 
  • Increases acceleration
  • Boost mileage of the engine
  • No gap erosion found
  • Enhances fuel economy
  • Great plugs at a reasonable price


  • Requires more gaping 
  • Needs anti-seize 

>>>Read more:

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Best Spark Plugs for 4.7 Dodge Ram

Buying Guide for spark plugs for 5.7l Hemi:

When you want to pick up the best spark plug for 5.7L Hemi, you need to keep in mind some important factors. They help you make a buying decision easily and quickly. Let’s take a look at the best spark plug for a 5.7L Hemi:

Gap size:

To ensure the right fit, you need to be various conscious about the gap size. If the gap size is imperfect then it leads to a situation in which the spark plug will not fit the right Hemi 5.7L model. Generally, the perfect gap size for Hemi 5.7 Liters is 0.43 inches. Therefore, make sure the gap size is appropriate.

You need to go for a gap gauge for taking out measurements. When you choose spark plugs that come with perfect gap size, it is free to adjust them using a spark plug gapper tool.

The number of spark plugs:

It is important to think about how many spark plugs in a hemi is required for the operation. These vehicle models usually need multiple spark plugs for efficient operation. Also, the fewer number of spark plugs can reduce to decrement in the overall performance and mileage. To understand this, for example, many packs come with a pack of 4 or 16 spark plugs. Hence, such packs are very useful to guarantee the efficient operation of the engine. 

Types of spark plugs:

When the matter comes to selecting the appropriate spark plugs for your 5.7L Hemi, it is important to know the details of various types of these plugs. Some of the fundamental types are copper spark plugs, platinum spark plugs, and spark plugs.

Generally, the copper spark plugs are referred to as the original spark plugs when it comes to price and practicality. At a reasonable price, you benefit from the efficient operation of your engine. Typically, for older engines, these spark plugs are very much suitable. However, for newer engines, go for some other choice because copper is not so durable.

The platinum spark plugs are 10 times sturdier than copper ones. With these plugs, there will be a noticeable boost in the overall performance of your vehicle. Both for older and newer models of vehicles, they are the right fit. Moreover, you can go for the double-platinum to benefit from a great boost in the performance of the engine.

To get the best, you can go for the iridium spark plugs for your 5.7L Hemi. They are very much suitable for modern vehicles. They result in good efficiency and a long lifespan. You will admire how flawlessly your engine works after installation of iridium made spark plugs.


Along with the prominent features, you also need to look at the reliability of the manufacturer. It ensures how flawlessly the plugs operate for the long-term. You can go through the reviews to get an idea of this. Moreover, consider buying those belonging from well-known brands that ensure durability, performance, and reliability.

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The best spark plugs for 5.7l Hemi result in smooth combustion of fuel mixture in the engine of 5.7L Hemi vehicles. They convey safety, reliability, and a boost in mileage. From the discussion above, the winner is Chrysler Jeep Dodge Ram 5.7 Liter (Set of 16). These are the superb spark plugs in terms of durability and capability to boost the mileage. Moreover, they come with wide compatibility and ease of installation. At reasonable price, you get to use the finest spark plugs for your 5.7L Hemi.

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