2010 Dodge Avenger Spark Plug Replacement Guide

Spark plugs are one of the most critical components inside your engine that need to be maintained. There’s a decent probability you will be required to replace your worn out spark plugs several times during your ownership of a 2010 Dodge Avenger. Spark plugs are one of the most vital components inside your engine as they trigger the entire combustion process that starts and keeps your engine running for many thousands of miles. Like most engine parts and components, spark plugs experience wear over time and eventually need to be replaced, but fortunately this is a repair you can do yourself. Odds are, if you’ve found yourself here, you have no idea how to do that, or potentially you’d just like to know what kind of spark plugs you need to buy. The entire process of changing your spark plugs should take roughly 20-45 minutes. This article will go over everything you’ll need to know about your Dodge Avenger’s spark plugs, whether you need some general information or a full, step-by-step guide to performing a spark plug change.

Correct spark plugs on a 2010 Dodge Avenger

Recommended 2.4L L4 2010 Dodge Avenger Spark Plugs

2.4L L4: ACDelco Gold 17 RAPIDFIRE Spark Plug (Pack of 1)
For the 2.4L L4 2010 Dodge Avenger, you can use AUTOLITE 5224 spark plugs. As this 2.4L L4 features 4 cylinders, ensure that you purchase at least 4 spark plugs in total.

Recommended 2.7L V6 2010 Dodge Avenger Spark Plugs

2.7L V6: Champion Iridium 9034 Spark Plug (Carton of 4) – RC12WEPB5
For the 2.7L V6 2010 Dodge Avenger, you can use AUTOLITE APP5263 spark plugs. As this 2.7L V6 features 6 cylinders, ensure that you purchase at least 6 spark plugs in total.

Recommended 3.5L V6 2010 Dodge Avenger Spark Plugs

3.5L V6: Autolite Iridium XP Automotive Replacement Spark Plugs, XP5224 (4 Pack)
For the 3.5L V6 2010 Dodge Avenger, you can use CHAMPION 9034 spark plugs. As this 3.5L V6 features 6 cylinders, ensure that you purchase at least 6 spark plugs in total.

These spark plugs are an exact fit for their respective engines and will match the required specifications. Make certain that you purchase the correct amount of spark plugs for your engine corresponding to the number of cylinders. Occasionally manufacturers will bundle spark plugs in quantities that make it difficult to buy the exact amount you need for your engine. In this case, it is a good idea to purchase enough for your next two spark plug changes just so you will always have a new set ready. We always try to recommend the best possible spark plugs for the money, and these spark plugs are either a factory recomendation or an equivalent replacement available now at an affordable price.

How often should I change my spark plugs?

In general, it is advised that you replace spark plugs once every 20,000 to 40,000 miles. Of course, please make sure to check your owner’s manual to determine the exact interval determined by Dodge for the 2010 Avenger. Of course, if you drive your vehicle more aggressively or own a Avenger with some modifications, you may want to consider changing your spark plugs closer to the 20,000 miles end of that spectrum.

However, there are also telltale signs of a car that needs a spark plug replacement earlier than the recommended schedule, such as:

  • Rough idle
  • Engine misfiring
  • Problems starting your engine

Note that this list is of course not comprehensive, and these problems on their own do not necessarily point to the spark plugs being the standalone culprit. However, the best way to prevent any issues with your vehicle is to take care of it with regular maintenance, and you are definitely doing so with the responsible decision to replace your Dodge Avenger’s spark plugs on a regular basis.

Changing spark plugs on a 2010 Dodge Avenger

This is a process you should be able to do on your own with some ordinary garage tools. Of course, consult your owner’s manual, as well as a factory service manual (FSM) or an equivalent Haynes or Chiltons manual. The video shown below does a good job of outlining the process.

Helpful Tools

While not essential, a spark plug tester is something you may want to invest in.
As noted before, you should be able to do a spark plug change with some regular tools you most likely already have. However, there are a few tools that are specific to this job that you may not have, and we also want to recommend some general tools that you should absolutely have in your toolbox if you do not already.

  • A spark plug tester – this is definitely a niche tool, but it can save you a ton of time. Although we’ve discussed spark plug replacement being a good thing to replace regularly and not just when issues occur, you may also be replacing your spark plugs because of a problem. This tool can help you diagnose the definite problem.
  • A torque wrench is a very important tool to have in your arsenal. You will want to check your FSM (factory service manual) or owner’s manual to determine the correct torque rating to use when inserting the new spark plugs for your 2010 Dodge Avenger to be confident they are installed properly.
  • A spark plug gap tool. This allows you to check the gap of your spark plugs and change it if necessary. Most plugs will come pregapped, but if not, you should for sure have one of these.
  • A set of spark plug sockets – These come in extremely handy because many standard sockets are not deep enough for spark plugs. In addition, some spark plug holes are a bit smaller, so it requires a thinner wall like the one featured in the product here to fit. The linked product also features a magnet to keep a good hold of the spark plug so you do not drop it into your engine bay!

Tips for changing spark plugs on your 2010 Dodge Avenger

It is a great idea to have some dielectric grease handy.
Please make sure you reference the video above before you attempt to repair the spark plugs on your 2010 Dodge Avenger, as well as review your FSM (factory service manual) or owner’s manual. Also, see the tips included below here to help you as you do this repair.

  • The most important thing is to avoid overtightening the plugs or worse, cracking them due to overtightenting. Use a torque wrench capable of lower, more precise torque ratings to be sure that you don’t make this mistake.
  • Your engine should be completely cold before you replace your spark plugs. Wait at least 30 minutes after your engine has been running before attempting to replace the spark plugs on your 2010 Dodge Avenger
  • Before starting, remove the negative terminal of your battery. It is wise to disconnect the battery anytime you work on the electrical system of your Dodge Avenger or any other vehicle.
  • It’s not a bad idea to use dielectric grease when installing new spark plugs. You can apply a a tiny amount to the inside of the boot and the ceramic part of your spark plugs. It prevents voltage leak and helps avoid the misfortune of the boot fusing to the spark plug over time.
  • This is not official advice as many spark plug manufacturers advise against the use of anti-seize. However, I have heard from numerous old-school mechanics that they always apply a tiny amount of anti-seize to the threads of their spark plugs, especially on older vehicles.

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