The best vehicles on the market today aren’t really the newer models. Instead, these are the vehicles that have been properly maintained. Proper maintenance starts by choosing the best ignition coil for 5.7 Hemi engine.

Vehicles are among the most important assets that we have. As a result, we all would want to preserve the fuel efficiency, acceleration, and power of the vehicle . But a faulty ignition coil won’t achieve any of this. On the other hand, a durable and sturdy ignition coil is important for your vehicle, especially if you want to improve its efficiency.

So what exactly does the ignition coil refer to?

An ignition coil is an electronic transformer that converts the battery’s 12 volts into thousands of volts required to create an electric spark that ignites the fuel. Unlike other car parts, the ignition coil isn’t something that you will have to deal with often. Ignition coils are available in different types.. However, the best product should help your car engine provide high power output while achieving low emissions. This means that you should be extra careful when choosing an ignition coil.

In this article, we are going to review the 4 best ignition coils for 5.7 Hemi. This will help you make an informed decision the next time you are in the market looking for the product.

4 best ignition coil for Hemi-Reviews

Standard Motor Eng. Management UF-504

You don’t have to take chances with the questionable and old ignition coils anymore. The manufacturer of these ignition coils, Standard Motor ensured that the coils stand out in terms of accuracy, operation, and maintenance.

The ignition coils are available in different styles, including canister, coil pack, and E-core. The coil is made of 100% copper, which provides high resistance to dielectric breakdown and internal shorts. They also come with a feedback signal and electronic ignition module profile for proper OE fit, form, and function. Additionally, the ignition coils have thermoplastic housing that is resistant to heat stress and makes the coils durable.

Best Ignition Coil for 5.7 Hemi – Ultimate Review

The internal core is made of steel that limits the loss factor within the magnetic circuit in order to reduce the heat that can affect the coil endurance. The external core is made of oriented silicon steel for longevity and durability. The coil has stainless steel springs that are corrosion resistant. The terminals are made of tin-planted brass to protect the coil against corrosion and improve electrical contact.

Key features

The Standard Motor Eng.Management UF-505 ignition coils have primary and secondary windings with an enamel magnetic wire for the highest temperature rating in the aftermarket.

Quality control is maintained throughout the manufacturing process
Top-ranked for longest life, best performance, and better heat dissipation
Comes with a 3-year warranty

Warranty

The Standard Motor company offers warranty coverage to most of their products. The warranty is valid if the product came with defects relating to material or workmanship from the manufacturer. The warranty period is 90 days or 3000 miles from the purchasing date. Spark plug wire has a lifetime warranty that covers the product against defects. The ignition module has a warranty of 5 years or 50,000 miles.

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ACCEL Ignition 140038K-8

For over 40 years now, ACCEL has been a common name for quality ignition systems. This latest ACCEL ignition coil now comes with two extra colors, black and blue. The quality is the same as what you gate in the previous yellow coils. The only difference is that we now have different colors available. These coils are made with advanced bobbin technology. They have highly specialized silicone magnetic steel cores together with optimized winding, resistance, and turns ratio to deliver up to 15% more energy than OEM coils. The coils are shock and vibration resistant.

This all adds up for it to be one of the best ignition coils for 5.7 Hemi that you can choose.

Best Ignition Coil for 5.7 Hemi – Ultimate Review

If you are after coils that have been designed for quicker rinse times, then ACCEL Super Coils maybe the coils you have been looking for. For improved performance, these coils are designed to produce higher spark energy. The best thing about these coils is that they can be used for a wide range of engine applications.

Key features

  • The 140038K-8 coil comes with improved bobbing technology to designed improve its performance.
  • These coils have bodies that are molded, and they are packed with great dielectric strength.
  • In order to resist chemicals, vibrations, shock, and engine bay, the ACCEL Ignition 140038-K comes with high-temperature epoxy-filled housings.
  • They feature advanced silicone magnetic steel cores with windings that have been optimized for performance.
  • The ignition coils can be used as direct plug OEM coil replacements.
  • They are compatible with ODB II meaning that they are not capable of tripping engine oil.
  • It is easy to install the coils. The process takes less than an hour to complete.

Warranty

ACCEL Ignition 140038K-8 ignition keys have a one year warranty. The company warrants its products to be free from any defects arising from workmanship or material for a period of up to 90 days from the purchased date. The warranty does not extend to products that have been intentionally subjected to accident, abuse, improper installation, or modification.

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MSD Ignition 8255

These MSD blaster coils will help you fire-up your late model Hemi. The coils are designed to improve output as a result of being spec’d with high-quality materials and winding ratios. As racers keep on finding ways to improve power and handling performance to get an edge in competitions, MSD has committed itself to deliver products meant to help racers and drivers in general to meet their performance goals. The company has continued to come up with new and improved components that are geared towards delivering reliability and performance. The products are also very easy to install and use. One of the reasons why people prefer to use products from MSD is because the company excels in performance, and it is also one of the few companies that champion the introduction of innovative components that have brought about new ways our cars tend to perform and race. Be it road courses or superspeedways, top-fuel dragsters, or land-speed racing, you can rest assured that components from MSD are guaranteed to fire any vehicle out there.

Best Ignition Coil for 5.7 Hemi – Ultimate Review

This can also be said about the MSD Ignition 8255 which is built with an inductance of 2.15mH and a maximum voltage of 36000. The coil also comes with a primary resistance of 0.403 Ohms and secondary resistance of 14500 Ohms. When it comes to spark energy, you should expect to get a 96mj per spark, and spark duration of 1320 mS.

Key features

  • It is an ignition coil with HEI coil-on-plug.
  • It comes with an advanced RMP operation.
  • It is also packed with direct bolt-in to factory connectors.
  • It has a limited one year warranty.
  • It has a secondary current of 56 mA.

Warranty

In case the MSD Ignition 8255 experiences any malfunction, then it can be repaired for free according to the terms of the warranty. If you wish to return this ignition coil, then you must avail proof of purchase for the return to be accepted. In cases where the warranty period ends, repairs will be based on a maximum and minimum fee. The warranty is only valid if the product is free from defects in workmanship and material under its intended use, within one year from the date of purchase. In case this product was purchase through auction websites, then it will not be covered by the warranty.

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E3 Sparkplugs E3.614

E3 Racing Ignition coils can be found in a wide range of units that are designed for high-performance that can be handy when it comes to motorsport applications.  This is especially true with their ignition coil for a 5.7 Hemi.

With their DiamondFIRE high output CD coils, you can rest assured that the E3 coils are designed to give you high voltage for all your performance applications.

Best Ignition Coil for 5.7 Hemi – Ultimate Review

The E3 Sparkplugs E3.614 ignition coil is arguably one of the best ignition coils you will find out there. This coil has more than twice the energy output you can find in a stock coil. This coil has a stainless steel spark plug contact ring. It has high RMP levels thanks to the optimization of its inductance and resistance values. It is also designed to resist vibration and shock, and at the same time giving you impressive thermal conductivity that helps in making it to last longer. This E3 Sparkplugs E3.614 coil comes with spark plug boots that have been molded into a silicon compound of 550-degree temperature.

Key features

  • The coils have a maximum voltage of 36000V.
  • Their primary resistance is 0.38 Ohms.
  • The secondary resistance is 6.4K Ohms.
  • These coils also come with a primary inductance of 1.7mH.
  • Their turn ratio is 117:1.
  • They are compatible with the OEM applications.
  • They come with a high-quality terminal/boot design meant to protect them from arc over.
  • For great thermal conductivity, these coils are packed with high-temperature epoxy.
  • They are resistant to vibration and shock.
  • These coils come with an extruded aluminum housing that is meant to provide maximum cooling whenever needed.
  • They deliver maximum voltage in all performance applications.

Warranty coverage

The E3 Sparkplugs E3.614 ignition coil warranty is valid for 100,000 miles or 5 years if it is free of defects in workmanship and material from the date of purchase. In case the spark plug has been installed in any modified engine or has been used in any aircraft, commercial or racing application, then it will not be covered by the warranty. Also, if the plugs have been damaged through accident, abuse, or as a result of wrong application, then the warranty will not be valid.

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Buying an ignition coil for 5.7 Hemi, what should I look for?

When it comes to purchasing the best ignition coil for 5.7 Hemi, one of the most important features to look for is compatibility. Ignition coils are designed to fit in specific engines. Note that car engines come with different slots and fittings with different sizes and shapes. Secondly, you have to consider the number of coils in the pack. Modern cars have spark plugs that are each connected to their own ignition coil. If you have a 5.7 Hemi engine, prepare to change 8 ignition coils.

Accessories are also an important factor worth considering. Don’t always expect the ignition coil to come with accessories. However, these accessories make the deal sweater. Common accessories that accompany ignition coils are spark plugs. This is because ignition coils work hand in hand with spark plugs in firing up the engine. The warranty is also an important factor that should never be ignored. If the ignition coil has a defect, the warranty will cover the replacement or refunding process. But as much as the warranty itself is important, it is equally prudent to know the warranty duration. There are ignition coils that come with a lifetime warranty, while others will only cover your ignition coil for one year.

Lastly, consider the brand name. Some brands have been around for years and they are known to make quality products. But this does not mean that newer brands should not be trusted. The best brand name should have a proven track record. The trick here is to go through past clients’ reviews. Generally, the best ignition coil brand should have more positive reviews on their website.

Frequently asked questions

How long can I use a faulty ignition coil?

A majority of the vehicles can still work even with a bad ignition coil. However, they may have certain issues like hesitation or misfires. The best advice is not to drive with a faulty ignition coil in order to prevent more severe complications.

When can I replace my ignition coil?

Replace an ignition coil as soon as you notice signs of a faulty coil. An example is when you have difficulty in starting your vehicle. Avoid using a vehicle with a faulty ignition coil as this might lead to other issues that would end up costing you.

How long does ignition coils last?

This depends on certain factors like the type of ignition coils you are using, driving conditions, and the vehicle type. Generally, ignition coils don’t last for more than 100,000 miles.

Is it possible to only replace one ignition coil?

Yes. It is possible to replace only one ignition coil if you can spot it. It is however advised that you replace all the ignition coils at once in order to prevent future defaults.

Can I replace the ignition coil without replacing the spark plug?

This may not be necessary. However, mechanics advise that you replace the spark plugs even if it is one coil you want to replace. This is because the spark plugs and ignition coils work very closely. If a problem occurs in one component, it is likely to affect other components as well.

How can I benefit from high-performance coils?

High-performance ignition coils increase voltage. As a result, they improve fuel economy and boost vehicle power. The difference is however not very significant if you compare them to the regular ignition coils.

Conclusion

As you now see, there is so much associated with ignition coils that you probably didn’t know before. Like we already said, there are important factors that you need to consider when purchasing ignition coils. All the products in our review have been tested for quality, and that is why we recommend buying any of them. We hope that this review will help you make an informed decision. Happy buying!