
When you need to buy a spark plug for your vehicle, you may assume that we are talking about a pretty simple and straightforward process. But then, you quickly realize that there are so many options out there and that picking the wrong one is, thus, relatively easy. When it comes to MOPAR vehicles, spark plugs are engineered to work with some very specific ignition systems, and a small mistake in buying these can lead to poor fuel economy, hard starts, as well as even engine damage at certain points. Go here to better understand spark plugs.
Due to all of that, it should be clear to you that making the right buying decision is of utmost importance here. And, well, since you are here, it is safe to assume that you may be a bit worried about making certain mistakes in this particular process, which is a completely normal concern. After all, it is not uncommon for people to make buying mistakes here, and those can then result in them being unhappy with the parts they have bought.
Since you don’t want the same to happen to you, chances are that you want to, well, be a bit more careful here. So, what we are going to do right now is talk a bit more about how you can avoid some of those common mistakes that people tend to make when buying spark plugs for their MOPAR vehicles. Once you have them listed at one place, you will clearly be much more careful in your process, and you will know what to do, as well as what not to do, in order to make the best possible choice for yourself. Without much more ado, thus, let us start listing those potential mistakes.
- Buying Randomly
First and foremost, a lot of people tend to buy these products randomly, assuming that they are all the same. The truth is, though, that they definitely aren’t. And especially when we are talking about MOPAR ones, you need to be careful and you have to do your best not to just randomly select one product or another without doing any kind of research. After all, you want to do what’s best for you, and this certainly requires you to, well, be careful in the process, instead of choosing randomly.
Here is how spark plugs in general work: https://auto.howstuffworks.com/spark-plugs.htm
- Ignoring OEM Specifications
The above mistake often leads to this one. That is, to ignoring OEM specifications. After all, MOPAR engines are definitely designed around some specific spark plug specifications, and those include things like heat range, thread size and reach, electrode material, as well as factory-set gap and similar. So if you choose products that almost match, instead of matching completely, that can result in misfires under load, reduced fuel economy, pre-ignition, as well as check engine lights turning on. This is why you should always check those OEM specifications, and not ignore them when making your purchase.

- Falling for Those “Universal” Spark Plugs
Similarly to the above, it is often easy for people to be tempted by those spark plugs that are advertised as being universal, fitting most MOPAR engines, better than stock and similar. While we cannot deny the fact that some aftermarket plugs can physically fit, the truth is that they can differ in resistance values, core materials, electrode shape, as well as longevity. So, instead of going for those universal ones, you should do your best to always get genuine MOPAR parts and ensure compatibility.
- Not Researching the Supplier in Details
Now, where you are buying is just as important as what you are buying. What’s more, the supplier you choose will have a great impact on the overall quality of your spark plugs, which is why you need to ensure that you are choosing great ones. And this, of course, means that you shouldn’t make any buying decisions before researching them in details. Check their experience and determine the genuineness of the parts they are selling.
- Not Checking Their Reputation
Furthermore, you should never fail to check the reputation of the suppliers you are considering. When you want to get great and genuine MOPAR spark plugs, you will absolutely want to get them from reliable and trusted suppliers. Read some reviews, therefore, to carefully check the reputation of the potential shops before making any buying decisions.
- Not Comparing the Quality and the Prices
Another thing that is not uncommon is for people to, well, buy based on the prices alone. And, while I get the importance of worrying about your budget and thus not wanting to overpay for something, here is the thing. You should never choose based on nothing else but the prices, because quality should always come first. So, compare the prices, but keep quality in mind as well.






