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Best Spark Plugs for 5.7 Hemi (2023): Buying Guide & Reviews

Are you looking to get the most out of your 5.7 hemi?

You’ve come to the right place! We have listed best spark plugs for your 5.7 hemi engine with their detailed review. Whether it’s a replacement or an upgrade, these high-quality products will give you that extra boost of power at a price that won’t break the bank.

The best spark plugs for a 5.7 hemi are platinum or iridium-tipped plugs. These plugs have longer life and are more resistant to fouling than other types of spark plugs. They can be a bit more expensive, but they are worth the investment if you plan to keep your vehicle for a while.

If you are looking for a less expensive option, copper-tipped plugs are a good choice for the 5.7 hemi. They don’t last as long as platinum or iridium plugs, but they are still a good option if you don’t drive your vehicle very often or if you only need them for a short period of time. Whatever type of spark plugs you choose, make sure that you keep them clean and free of debris. Spark plugs can be cleaned with a wire brush or an emery board.

Here are four different types of spark plugs that work well in this engine.

First Type – Copper-core plug.

This plug is a good choice for most applications and is a good value for the price. It has good fuel economy and emissions, and it’s durable enough to last for many miles.

Second type – Iridium-core plug.

This one is made with a platinum alloy, which gives it excellent durability and performance. But, also makes it more expensive than most other spark plugs.

Third type – Double-tip platinum core plug with copper.

It works well in most vehicles that have this engine. It has good fuel economy and produces less emissions than other plugs. It is also durable and long lasting.

Fourth type – Triple-tip platinum core plug with copper.

This one is also made with platinum alloys, which makes it very durable and long lasting. It has good fuel economy and low emissions, and it is a good choice for drivers who need the best performance possible.
All of these spark plugs are available at most auto stores, and they all work well in the 5.7L Hemi engine. So, which one is right for you? That will depend on your individual needs and preferences.

Performance Tip: If you are considering changing the spark plugs in your vehicle or have already done so and want to know how they affect performance or gas mileage.

What are the symptoms of bad spark plugs?

A bad spark plug will have a dead cylinder, misfires and decreased performance. Some of the prominent symptoms are:

Rough idle in Engine

The rough noise coming out from engine is a sign of some problem with the vehicles spark plug. if the spark plug is not replaced in time, it may lead to costly damage.

Misfiring by Engine

The temporary shutdown of engine is a sign of some serious issues with the engine. If you feel like knocking, the cylinder may not be fit properly. The increased emissions and unpleasant driving experience are the two major results

Lack of acceleration

The insensitive throttle is on the prominent indicator that your spark plug needs a change. To restore your car’s regular operations, it is crucial to replace the spark plugs.

Trouble to start

Besides a dead battery and low gas, spark plug failure is the most common reason for any trouble you find while starting your car.

High fuel consumption

Poor quality spark plugs are highly responsible in decreasing the fuel economy. If you notice that the fuel economy of your car is deteriorated over the period of time, it indicated that the spark plugs need to be changed.

Surge in Engine

The combustion air intake of your car’s engine increases gradually. It affects the operating efficiency for your vehicle adversely. You will experience an unpleasant driving experience with continuous breaking. if this is the case, the spark plugs of car need immediate replacement.

Best Spark Plugs for 5.7 Hemi: Reviews & Buying Guide

S.No.Best Spark Plugs for 5.7 HemiCheck Price
1.Sixity Auto NGK Standard Spark PlugsCheck Price on Amazon
2.Mopar Chrysler Jeep Dodge NKG Spark PlugsCheck Price on Amazon
3.Bosch Automotive Double Platinum Spark PlugCheck Price on Amazon
4.Champion Platinum Power 3570 Spark PlugCheck Price on Amazon
5.NGK 92174 Spark PlugCheck Price on Amazon
6.Champion Copper Plus 570 Spark PlugCheck Price on Amazon
7.APDTY Tune Up Kit Includes 16 OEM Spark PlugsCheck Price on Amazon
8.ACDelco 41-993 Professional Iridium Spark PlugCheck Price on Amazon
9.Autolite AP5325-4PK Platinum Spark PlugCheck Price on Amazon
10.Fram Autolite XP5325-4PK Iridium XP Spark PlugCheck Price on Amazon

1. Motorcraft SAE 5W-40 Full Synthetic Diesel Motor Oil

If you’re looking to give your Ram 1500 a tune-up or performance upgrade, these NGK Spark Plugs are the most recommended spark plugs on our list. They reduce emissions and misfires while promoting sharper spark focus for better engine performance. Plus, the durable shell protects against corrosion and provides long-lasting sparking capabilities.

These plugs create complete and efficient combustion for a fast, strong, and powerful spark by employing advanced centre and ground electrodes. The corrosion-resistant centre and ground electrodes also minimize spark gap growth, ensuring that your Ram 1500 runs like a dream for many miles to come.

So if you’re looking for the best spark plugs, don’t look any further than NGK Standard Spark Plugs.


  • Fits snugly in the engine for an easy installation
  • Smoother engine operation
  • Faster acceleration


  • None, as this is a high-quality product which gets the job done as promised.

2. Set of 16 Chrysler Jeep Dodge

If you’re looking for a set of plugs that are guaranteed to perform, look no further than the Set of 16 Chrysler Jeep Dodge Ram 5.7 Liter HEMI NKG Spark Plugs Mopar. These plugs have been designed explicitly for use in these vehicles, and they provide superior performance and durability.

You’ll love the improved response and sound, not to mention the sensation of speed. And who knows – you may even see an improvement in your fuel economy. Why settle for anything less?

So if you’re looking to get the most out of your vehicle, make sure you equip it with a set of these best spark plugs. Thanks for choosing the Set of 16 Chrysler Jeep Dodge Ram 5.7 Liter HEMI NKG Spark Plugs Mopar!


  • Designed specifically for the 5.7 Liter HEMI engine
  • Provide superior performance and durability
  • Easy to install


  • None, as this is a high-quality product which gets the job done as promised.

3. Bosch Automotive Double Platinum Spark Plug

Bosch Automotive Double Platinum Spark Plugs are the best way to improve your engine’s performance life and durability. The refined wire design of the centre electrode improves ignitability and performance, while the platinum tips on both the centre and ground electrodes ensure longer life. With these best spark plugs, you’ll get more out of your engine than ever before!

Plus, the patented platinum alloy ensures that these plugs will stay sharp and clean for longer than any other plug on the market. So if you’re looking for a plug that delivers unbeatable performance and durability, look no further than Bosch Automotive Double Platinum Spark Plugs.


  • Improved engine performance and life
  • Superior ignitability
  • Fine wire design of the centre electrode ensures longer life


  • Few customers complaint about inferior quality and inappropriate fit

4. Champion Platinum Power 3570 Spark Plug

When it comes to sparking plugs, Champion knows what they’re doing. The Platinum Power 3570 Spark Plug is evidence of this. The plug delivers powerful performance and long life with its platinum centre electrode and fine-wire centre electrode.

The sharper spark focus with V-trimmed ground electrode makes it a good choice for you engine. The heat-active alloy bring electrodes to optimal temperature quickly. Hence under all the engine loads, this spark plug maintains stable operating temperature.

Professional drivers trust Champion plugs for 5.7 hemi – shouldn’t you?


  • Fine wire design of the centre electrode
  • powerful performance and long life
  • V-trimmed ground electrode for sharper spark focus
  • Heat-active alloy compatible under heavy loads


  • A few customer complaints about receiving the wrong product

5. NGK 92174 Spark Plug

NGK Standard Series spark plugs are designed to improve performance and reduce harmful emissions. These plugs deliver a hotter spark, which allows for better combustion and improved results. They are available in various configurations, making them perfect for both universal and specific applications.

It comes with cold-rolled threads to protect the cylinder head. The triple gasket sealing helps in eliminating gas leakage. This spark Plug ensure superior heat dissipation with copper core. Also, there is a controlled conductivity, and a broader heat range due to solid copper core. The trivalent plating gives maximum corrosion resistance.

NGK Standard Series spark plugs are highly rated spark plugs to extend your engine performance and give a boost to your fuel economy.


  • Designed for improved performance and reduced emissions
  • Delivers hotter sparks
  • No gas leakage with triple gasket seal


  • Customer complaint about receiving less spark plug count

6. Champion Copper Plus 570 Spark Plug

Champion Copper Plus, 570 Spark Plugs, are created with a copper core centre electrode, providing accurate control of heat range for extended life. Additionally, the plugs feature superior corrosion resistance and are built to ISO and SAE standards for proven performance. Whether it’s a daily driver or weekend warrior, these plugs will deliver dependable performance and durability each time you take your vehicle out for a spin.

The Champion Copper Plus 570 Spark Plug is a dependable performer. It comes with increased conductivity and improved heat control, resulting in good overall wear.


  • Copper core centre electrode provides accurate heat control
  • Superior corrosion resistance to ISO and SAE standards for dependable performance
  • Provides good overall wear


  • Shorter life span

7. APDTY Tune-Up Kit Includes 16 OEM Spark Plugs

If you are looking for a quality tune-up kit that won’t break the bank, our APDTY kit is perfect for you. It includes 16 OEM spark plugs made from Champion – a trusted brand in Hemi engines. The copper plugs are durable and long-lasting, but we also offer platinum and iridium plugs if you’re looking for an upgrade.

APDTY’s Tune-Up Kit is your one-stop shop for all things tune-up related. A one year warranty backs this comprehensive kit. With this kit, you can do a tune-up quickly and easily – without spending hours hunting down all of the individual parts you need.

Customer reviews are overwhelmingly positive, so you can be confident that you’re making a wise purchase.


  • 16 OEM plugs made by Champion for use in Hemi engines
  • Copper, platinum and iridium options are available
  • 1-year warranty


  • Service interval is lower

8. ACDelco 41-993 Professional Iridium Spark Plug

The ACDelco 41-993 Professional Iridium Spark Plug is perfect spark plugs for 5.7 hemi. It is meant for those who are looking for a plug with better engine idle stability and smoother performance. The iridium allows for smaller, more efficient electrode designs, improving cold starting and quickening acceleration.

The iridium fine-wire electrode also helps ignite the fuel and burn away carbon deposits on the plug’s tip as they form, thus improving fuel economy. Finally, the one-piece suppressor seal blocks radio frequencies that affect your vehicle’s electronics.

ACDelco 41-993 Professional Iridium Spark Plugs are the pinnacle of performance and longevity. These plugs can provide your engine with a longer life and better sealing against combustion leakage by suppressing spark energy and utilising an iridium electrode. Gap them correctly before installation for the best possible results.


  • Iridium fine-wire electrode for better cold starting, acceleration, and fuel economy
  • One-piece suppressor seal blocks radio frequencies
  • The highest melting point of all the metals


  • Pricey

9. Autolite AP5325-4PK Platinum Spark Plug

Most spark plugs are designed with a nickel alloy electrode that can corrode over time, leading to performance loss. Autolite’s platinum spark plugs feature a full platinum tip that is resistant to corrosion and erosion, giving you long-lasting performance.

I In addition, the yttrium enhanced high nickel alloy side electrode helps maintain a precise gap even after extended use. In contrast, the necked-down centre electrode fires quicker and cleaner for a more leisurely start and improved fuel economy. The nickel-plated steel shell provides long-life corrosion resistance.

Autolite’s platinum spark plugs are second to none when it comes to performance and durability.


  • Resistant to corrosion and erosion
  • Precise gap maintained even after extended use
  • Nickel-plated steel shell for long-life corrosion resistance


  • Not as durable as iridium plugs
  • May require gap adjustment before installation.

10. Fram Autolite XP5325-4PK Iridium XP Spark Plug

The Fram Autolite XP5325-4PK Iridium XP Spark Plug is designed with an iridium-enhanced fine wire for optimal durability and performance. The V-trimmed ground electrode ensures improved ignitability. For all ignition types, you get the maximum efficiency with its platinum protected ground wire.

Plus, it comes with a limited lifetime warranty for your peace of mind. Upgrade your ride today with the Fram Autolite XP5325-4PK Iridium XP Spark Plug!


  • optimal durability and performance
  • Maximum efficiency in all ignition types
  • Limited lifetime warranty


  • May require gap adjustment before installation

Factors to consider before buying the best spark plugs for 5.7 hemi

1. Gap Style

Spark plugs are designed differently for varied types of gasoline and diesel engine. The required optimum gap is 0.43 inches. Hence, before purchasing the spark plug, you need to understand the exact Gap style.

2. Fit & Size

Choose the model that perfectly match your engine style. Spark Plugs are available in the threads of 18mm, 16mm, 14mm, 12mm, and 10mm.

3. Your budget

There are many different spark plugs available, and they can range widely in price. Choose a budget you are comfortable with, and use that information to narrow down your choices!

Frequently Asked Question on Best Spark Plugs for 5.7 hemi

How do I know how many spark plugs (NGK) is needed?

If you don’t already know how many spark plugs in your vehicle, we recommend changing them all at once to avoid any future problems. You can tell if they need changing by continually monitoring your gas mileage and noticing a decrease in MPG. If this happens, you should purchase the same number of plugs as your vehicle currently has (i.e., if you have 4 NGOs, we recommend purchasing 4) and install them at once.

Is there a recommended gap setting for the 5.7 hemi?

Yes, we suggest that platinum and iridium spark plugs be gapped to 0.043 inches or 1.1mm. With this gap, the plugs will be able to fire accurately and cleanly, providing your engine with the best performance possible.

What should I do if my vehicle needs platinum or iridium spark plugs?

If you’re unsure which type of spark plug your vehicle needs, we recommend consulting your car’s owner’s manual. Many vehicles have specific spark plugs meant for use in that particular make and model.

What type of spark plug is best for my 5.7 hemi?

Both platinum and iridium spark plugs can benefit your 5.7 hemi, though you should choose the type based on your vehicle’s needs. To decide which is best for you, please consult your car’s owner’s manual or contact us for assistance.

How often should I change my spark plugs?

You should replace spark plugs every 80,000 miles or eight years, whichever comes first. However, this may vary depending on the type of spark plug you have installed and the driving conditions in which you operate your vehicle. Always consult your car’s owner’s manual for the most accurate information.

What is the difference between platinum and iridium spark plugs?

Platinum and iridium are noble metals that offer the best ignition capabilities for your 5.7 hemi; however, platinum is slightly less durable than iridium. The difference in durability primarily relates to wear and tear resistance. Also, iridium plugs cost about twice as much as platinum ones.


When choosing new spark plugs for your vehicle, it’s essential to consider all of your options. There are various factors to consider, such as the type of engine and the specific applications you need. With so many different spark plugs on the market, it can be challenging to determine which ones will work best for you and your vehicle.
NGK stands out as a leading producer of spark plugs and other related products. They offer various types and models that are guaranteed to provide excellent performance and durability, making them the perfect choice for all your automotive needs.

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My Name is Christopher Angels, and I am a postgraduate in mechanical engineering. Cars have always excited me as a child, and soon I decided to dive into the world of cars by pursuing mechanical engineering. I also worked as a Mechanic for over 3 years to understand Cars' anatomy and how each part contributes to its working.

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