OEM Ignition Spark Plug for Hyundai/Kia ⚡

This plug is the tiny but vital firestarter of your engine. It lights the air‑fuel mix, giving you smooth starts, crisp throttle, good fuel economy, and clean emissions. If you want steady idle, strong pull, and long catalytic converter life, fresh plugs are a must .

How it works

A high-voltage pulse jumps the gap between a fine center electrode and the ground strap. The ceramic insulator keeps the spark focused, while the metal shell grounds the plug and seals the combustion chamber. Correct heat range lets the tip run hot enough to self-clean, but cool enough to avoid pre‑ignition. The result: reliable flame kernel every cycle .

Why you need it

Old or fouled plugs weaken spark, forcing coils to work harder and the ECU to dump more fuel. Replacing them restores efficient burn, easier cold starts, stable idle, and lower emissions ⛽.

If the plug is worn or broken

Expect hard starts, misfires under load, rough idle, sluggish acceleration, higher fuel use, sulfur smell, and sometimes a flashing MIL (common misfire codes). Ignoring it can overheat the converter and damage coils.

Pro tips ✅

Install on a cool engine, blow out wells, hand‑thread to avoid cross‑threading, tighten to spec, and keep the factory gap unless the service manual says otherwise. Replace as a set for balanced performance.

Compatibility

• Elantra
• Avante
• Elantra GT
• Sonata
• I45
• i30
• i40
• Tucson
• ix35
• Santa Fe
• Grand Santa Fe
• Maxcruz
• Genesis Coupe
• Rohens Coupe
• Grandeur
• Azera
• Aslan
• Palisade
• Creta