OYEAUTO Iridium Spark Plugs 4pc — Replacement for Hyundai & Kia Vehicles, Pre-Gapped Long-Life

These OYEAUTO iridium spark plugs are a set of four replacement plugs designed to match original equipment specifications for a wide range of vehicles. Built with a fine-wire iridium center electrode, they offer long service life and consistent ignition characteristics across a variety of 4-cylinder engines. The listing shows common fitments but be sure to confirm fitment with your vehicle’s year, engine size and part number before purchase.

Which cars do these iridium plugs fit?

They fit many Hyundai and Kia models across model years shown, plus a selection of Hondas, Nissans, Mazdas and other makes. The product listing displays representative models; the full compatibility list includes dozens of engine and year combinations. Use the make-model-engine match to verify compatibility with your vehicle.

• Hyundai: Elantra, Accent, Sonata, Tucson, Santa Fe, Kona, Veloster, Venue and more.
• Kia: Forte, Soul, Optima, Seltos, Sorento, Sportage and related variants.
• Also fits: Honda Accord/Civic/CR-V, Nissan Altima/Rogue/Sentra, Mazda3/6/CX-5 and select Toyotas, Acuras, Lexus models.
• Replace part numbers: 18846-11070, SILZKR7B11, 1721590003 and similar OEM codes.

How do these OYEAUTO iridium plugs perform compared with standard plugs?

Iridium electrodes are harder and have a higher melting point than conventional materials, which helps maintain a focused spark over many miles. That durability typically supports stable ignition timing and consistent starts as the plug wears more slowly than copper or standard nickel designs. While results depend on engine condition and tuning, many users see longer intervals between replacements.

• Fine-wire iridium center electrode for long-term spark consistency.
• Manufactured to OEM service-interval expectations for similar longevity.
• Designed to resist wear under modern combustion temperatures.

What installation and maintenance should I plan for?

Installation follows standard spark plug replacement procedures: remove old plugs, inspect the plug wells and threads, gap plug if required and torque to the manufacturer’s spec. Use anti-seize only if recommended by the vehicle maker; many modern plugs come pre-gapped to specification. Regular inspection at service intervals will identify ignition or fouling issues early.

• Pre-gapped for many applications—verify gap before installing if your engine requires it.
• Tighten to vehicle OEM torque specifications to protect threads and ensure sealing.
• Inspect ignition coils and wires when replacing plugs for complete ignition system health.

What warranty and replacement coverage comes with this set?

OYEAUTO offers a 12-month warranty on these spark plugs. If a manufacturing defect appears within the warranty period, you can request a refund or a replacement through the seller. Keep your order details and contact the vendor’s support channel to start a claim.

• 12-month limited warranty covering defects under normal use.
• Refund or replacement available during the warranty window.
• Contact seller with order information to process warranty service.

Who is this for: These OYEAUTO iridium plugs are ideal for DIY mechanics and professional technicians replacing spark plugs on compatible Hyundai and Kia models, or across the many supported Honda, Nissan, Mazda and other vehicles listed. Choose them if you want an iridium-upgrade replacement made to OEM-style specifications and backed by a one-year warranty; confirm exact fitment with your vehicle’s engine code and part number before ordering.