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Elantra N Spark plugs Install Guide
Your Elantra N
Pick your year to see what fits.
This page covers the US Elantra N.
+0–5 whp (est.)
Medium$40–$1201–2 hrs
Why do it
Fresh plugs bring back power that worn plugs lose.
Tools you'll need
- Socket set
- Spark plug socket
- Torque wrench
Starting out? See our budget tool list.
Parts to buy
- Genuine Hyundai plugs 18857-09085 Factory plug. Buy 4.Fits 2022–2026
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Before you start
- Work on a cold engine. Do one plug at a time.
Steps
Remove the coils
- Pull the cover and coil packs.
Remove the old plugs
- Unscrew each plug.
Fit the new plugs
- Thread them in by hand and torque them.
Reassemble
- Refit the coils and cover.
How to know it worked
- The engine starts and idles smoothly.
- No warning lights.
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Safety first
- Park on flat ground, set the parking brake and chock the wheels.
- Never get under a car held up only by a jack. Use jack stands.
- Let the engine and exhaust cool first.
- Disconnect the battery before unplugging electrical parts.
- Wear safety glasses.
- If something doesn't match your car, stop and ask a shop.
Follow your part's instructions and your service manual's torque specs.
Spark Plug install guides for other cars