What spark plugs does a Hyundai Genesis use?

The Hyundai Genesis spark plug type varies by year and engine. Newer models (2010+) typically use iridium plugs for longer service life. Older models may use platinum or copper. Check the specs below for your exact year.

How often should I change spark plugs on a Hyundai Genesis?

Modern Hyundai Genesis models with iridium plugs can go 60,000-100,000 miles between changes. Older models with copper plugs need replacement every 30,000 miles. Replace sooner if you notice misfires, rough idle, or poor fuel economy.

What is the spark plug gap for a Hyundai Genesis?

Most Hyundai Genesis models use a spark plug gap between 0.039" and 0.044" (1.0-1.1mm). Pre-gapped plugs from the OEM are recommended. Do not re-gap iridium-tip plugs as it can damage the electrode.

Can I upgrade to iridium spark plugs in my Hyundai Genesis?

Yes, upgrading from copper or platinum to iridium is generally safe and beneficial. Iridium plugs offer better ignitability, longer life, and improved fuel economy. Just match the correct heat range and gap for your engine.

⚡Spark Plug Type

Hyundai Genesis Spark Plug Type

Find the correct spark plug type, gap size, and replacement interval for your Hyundai Genesis. Covers all model years with torque specs.

Quick Answer

The Hyundai Genesis typically uses iridium or platinum spark plugs. Newer models (2010+) use long-life iridium plugs rated for 60,000-100,000 miles. Check below for your specific year.

2011-2016

Spark Plug TypeIridium (long-life)

Plug Gap0.039" - 0.043" (1.0 - 1.1mm)

Replacement Interval60,000 - 100,000 miles

Torque Spec15 - 22 ft-lbs (check manual)

Quantity4 (inline-4) or 6 (V6)

Notes

→Iridium plugs last longer but cost more — do NOT re-gap iridium plugs
→Use a torque wrench — over-tightened plugs can strip aluminum heads
→Apply a thin coat of anti-seize to threads (unless plug is pre-coated)
→Use a spark plug socket with rubber insert to avoid cracking the ceramic insulator

Shop on Amazon →Full Repair Guide →

2009-2010

Spark Plug TypePlatinum or Iridium

Plug Gap0.039" - 0.044" (1.0 - 1.1mm)

Replacement Interval30,000 - 60,000 miles

Torque Spec13 - 20 ft-lbs

Quantity4 (inline-4) or 6 (V6)

Notes

→Iridium plugs last longer but cost more — do NOT re-gap iridium plugs
→Use a torque wrench — over-tightened plugs can strip aluminum heads
→Apply a thin coat of anti-seize to threads (unless plug is pre-coated)
→Use a spark plug socket with rubber insert to avoid cracking the ceramic insulator

Shop on Amazon →Full Repair Guide →

Frequently Asked Questions

What spark plugs does a Hyundai Genesis use?: The Hyundai Genesis spark plug type varies by year and engine. Newer models (2010+) typically use iridium plugs for longer service life. Older models may use platinum or copper. Check the specs below for your exact year.
How often should I change spark plugs on a Hyundai Genesis?: Modern Hyundai Genesis models with iridium plugs can go 60,000-100,000 miles between changes. Older models with copper plugs need replacement every 30,000 miles. Replace sooner if you notice misfires, rough idle, or poor fuel economy.
What is the spark plug gap for a Hyundai Genesis?: Most Hyundai Genesis models use a spark plug gap between 0.039" and 0.044" (1.0-1.1mm). Pre-gapped plugs from the OEM are recommended. Do not re-gap iridium-tip plugs as it can damage the electrode.
Can I upgrade to iridium spark plugs in my Hyundai Genesis?: Yes, upgrading from copper or platinum to iridium is generally safe and beneficial. Iridium plugs offer better ignitability, longer life, and improved fuel economy. Just match the correct heat range and gap for your engine.

Hyundai Genesis Repair Guides

→Hyundai Genesis Spark Plug Replacement →Hyundai Genesis Ignition Coil Replacement →Hyundai Genesis Oxygen Sensor Replacement

Browse all Hyundai guides →Browse all Hyundai Genesis guides →

More Hyundai Genesis Guides

Browse all Spark Plug Type pages →

Need a full step-by-step repair guide?

Start Free AI Diagnosis →

100% Free — No signup required