OEM Spark Plugs

A Simple DIY Guide to Replacing Spark Plugs

Replacing spark plugs at home is a straightforward way to restore engine performance, improve fuel economy, and maintain proper ignition timing. With a socket wrench, some patience, and the right plug gap, you can get the job done yourself—no shop required.

Swapping Out Spark Plugs on Your Dodge Charger

1. Make Sure the Engine Is Cool

Wait at least 30 minutes after shutting off your Dodge Charger to prevent burns or thread damage.

2. Remove Engine Covers If Needed

Some models have covers that must be removed to access the spark plugs. Check your owner's manual for guidance.

3. Disconnect the Ignition Coil or Plug Wires

Carefully unplug the ignition coil or wires from each spark plug, labeling them if needed to avoid mix-ups.

4. Use a Spark Plug Socket and Extension

A proper spark plug socket with a rubber insert makes it easy to remove old plugs without cracking the ceramic.

5. Check and Set the Plug Gap

Before installing new plugs, use a gap tool to verify spacing matches your engine’s specs.

6. Tighten the New Plugs by Hand First

Start threading each plug by hand to avoid cross-threading, then finish tightening with a torque wrench.

After replacing your plugs, consider inspecting other wear items like belts and hoses to keep your Charger running strong. Need help picking the right parts? Contact us at RFD Autoparts for expert help and great deals.