Featuring The 3 Best Spark Plugs For 5.0 Mustang


Mustang cars are the most popular sports cars of American automobiles manufactured by ford. The 5.0 hatchback models came with a spoiler. The 5.0 Mustang GT has a 5.0-liter V8 engine that puts out 460 horsepower.

A damaged spark plug causes misfiring as it can cause irreparable damage to the engine of the car. And can cause of a dangerous accident too.

It isn’t safe to drive with a damaged spark plug. So, today we are here to share with you the best spark plugs for 5.0 mustang. Hope this content will help you.

Best Spark Plugs For 5.0 Mustang

Check out these 3 sparkplugs for your Ford Mustang and enjoy a superior engine performance. Oh, don’t miss our buying guides as it’s containing few valuable factors that you should know.

1. NGK-Iridium- Spark- Plug– Long-Lasting Spark Plugs

NGK (4589) IFR6T-11 Laser Iridium Spark Plug is a high-performance spark plug. This product dimension is 4.1×3.5×0.9 inches, weight 0.9 pounds. NGK made these spark plugs, in 2011, and from that time, they are selling this product with an excellent reputation.

It is an excellent spark plug; they include 4plugs in a pack, which is needful for you. Very easy to install; it may take 1hour or 2hours for installation. The NGK spark plug gives you a smooth feel at the startup of the engine. They are not so noisy, which offers a nice feeling. These are iridium spark plugs which are lasted a long time. So, you can use those long time.

According to the customer reviews, we tell you it may be a very much excellent spark plug for your vehicles, and you can use that without any doubt.


  • Reasonable price.
  • Genuine and reliable parts.
  • Expected installation.
  • Work perfectly.


  • Don’t fit with all branded cars.

Available On Amazon

2. Bosch Automotive 9659 Spark Plug– Get 4 Times Performance Durability Using This

It is the double Iridium type of spark plug from Bosch Automotive. This spark plug features with such a firing pin of double iridium and a delicate material coating for the ground electrode. And it helps to render a quite durable service comparing to the conventional Copper type ones.

The top firing pin electrode is 0.6 mm in size. And it has an excellent weld of 360° laser that is ongoing all the time. This laser weld coating secures the firing pin to fuse corrosion-free firing to the base.

The shell of the plug is Nickel-plated, and the threads are rolled finely with anti-seize. So, you won’t need to use any anti-seize on it. And the Nickel plating helps to protect from any type of corrosion or wearing.

The ribbed type design on the plug insulator helps it from any misfiring or flashover. As a result, you get the full economic and optimal performance of your engine.

If you like to have your engine performance with long time durability and don’t bother with the budget, this is the perfect 5.0 Mustang spark plug for you.


  • 7 years of working satisfaction
  • OE matched spark plug
  • The gap comes pre-set
  • Perfectly fits in the V-8 engine


  • Expensive

Available On Amazon

3. Autolite APP25-4Pack– Double-Platinum Spark Plug Set within Budget

This spark plug set comes in a pack of four, which will be a win out for you, as it is a double-platinum type spark plug. The top firing tip is fully coated with Platinum so, it leaves no gap for erosion.

Well, the center electrode finely necked down with harmony to the ground electrode. So, each firing is so fast, clean, and accurate. It uses less voltage but provides a quick startup with faster acceleration.

High-quality Nickel alloy on the side of the spark plug helps to maintain the accurate gap size. The platinum material gives it a long time of durability with the correct engine ignition.

The benefit of the double-platinum electrode is the precision in gapping and security to the misfiring. This type of spark plugs hardly gets misfiring. So, you can enjoy the optimal use of fuel.

For people who are a little economic user and want a combo pack within the budget price, these spark plugs are the best ones to choose from. It is corrosion-protected, and people have never experienced an issue with Autolite’s motor parts so far.


  • 5 years of durability guaranteed
  • Budget worthy 4 in 1 pack
  • Precisely pre-gapped
  • Outstanding performance in all riding condition


  • May not come anti-seized

Available On Amazon

How To Pick The Top Spark Plugs for 5.0 Mustang?

How To Pick The top Spark Plugs for 5.0 Mustang

The modern Mustang vehicle with the 5.0 L V-8 engine has a relatively higher HP and torque. So, you must choose the right spark plugs that fit correctly into the combustion chamber.

If you don’t know how to choose the right one, we show some significant factors to check out before buying 5.0 Mustang spark plugs.

Choose the Right Type of Material

The material of the spark plug is the first thing you should choose in the spark plugs. You will find four different types of material in the spark plugs.

  1. Copper
  2. Platinum
  3. Double Platinum(Iridium, Double Iridium)

For better understanding, let’s have a simple summary of them.


Copper metal works as an excellent conductor of heat and current. But in the case of durability, Copper tends to be very soft. So, if you use the Copper spark plugs, you can get them at a low price but won’t be very long-lasting.

#2. Platinum

Platinum spark plugs are more durable than Copper. the hard, and sharp edge helps to create sparks easily and runs for a longer time.


Well, this type of spark plug is kind of a renovation to the platinum spark plug. The double Platinum will cost a little high, and there will be an alloy of Platinum metal on both electrodes- central and ground. It’s an additional benefit.

#1. Iridium

Well, Iridium spark plugs are 6X harder than the Platinum spark plugs. In modern high performing, SUV cars will be beneficial with this type of spark plug. These spark plugs are also very expensive.

#2. Double-Iridium

Double iridium is another premium spark plug and the most expensive one. It is as durable as its price. The modern 4Cyl engines with more horsepower can have these spark plugs.

But if your pocket does not feel right with the budget, then it is okay to choose the platinum spark plugs for Mustang.

Check the Top Firing Pin

The top firing pin is a crucial part of any spark plug. If the firing pin is not accurate and corrosion-free, you won’t get the right ignition. Consequently, you may have misfires and fuel wastage.

So, check the top firing pin is finely plated with the material or not.

Measure the Gap Size

Gap size is the size of the gap between two electrodes- the firing pin and the ground electrode. Modern most spark plugs come with a pre-set gap size. So, you must know the right gap size for your Mustang.

Well, the right gap size for the 5.0L V8 engine is 0.05 inches to 0.06 inches. Check the vehicle manual to get your one’s gap size.

You can also get this size from beneath the engine hood. There can be some stickers where the gap size of the spark plug is written. You can reset your gap size also if you have the size measuring gauge.

Select Your Exact Heat range

Heat range is the feature where most people make mistakes. The heat range of any spark plug indicates the temperature at which the plug can operate.

This heat range can be from 4 to 10. And most of the time, the lower the range number is, the hotter the spark plugs will be.

If the number is 4 on your spark plug, it means it is the hotter operating spark plug. And if the number is 10it indicates the colder operating temperature.

Remember, there are a variety of heat ranges based on a different company. Some company defines this range hotter to colder for the number lower to higher. And some companies follow the vice versa.

So, be sure of these facts before buying. If your riding condition is only for regular driving in the town, have the hot operating plugs. But in the case of high-powered driving like races and rough driving, go for the colder operating heat range must.

Frequently Asked Questions(FAQs)

How do you know that you need a new spark plug for your Mustang?

You can realize that your car needs new spark plugs immediately. Some symptoms let you know that you need new spark plugs for your Mustang. 1. It takes a long time to start the engine, 2. Engine misfiring, 3. Rough engine idling, 4. Engine sounds loud, 5. ‘Check engine’ light on, etc.

Why do the spark plugs go bad?

Dirty oil can cause spark plugs to quickly damage. Oil and smoke build carbon on the engine, that a major cause of damaging the spark plugs. That’s why you need to keep cleaning the engine.

Is it dangerous to drive with a bad spark plug?

Yes, if your spark plugs are damaged, then you should replace them as soon as possible. A damaged spark plug can cause your engine to misfire. Sometimes it can cause a terrible accident too. That’s why you should not underestimate this.


To conclude, we can say that in this spark plugs review, you are getting the most featuring right fitted and best spark plugs for 5.0 Mustang with 4 cylinders V8 engine.

In addition to this, we mentioned here a useful buying guide to choose the right fit. Read this to get the accurate spark plug and enjoy healthy combustion from your beloved engine.