OYEAUTO Iridium Spark Plug Kit 4-Pack for Hyundai Kia 1.4–2.4L Engines — Fine Iridium Electrode, OEM Fit

High-performance iridium spark plugs from OYEAUTO designed to replace worn units on many Hyundai, Kia and other popular makes for improved ignition consistency and long service life.

If your vehicle is listed among common Hyundai, Kia, Honda, Toyota, Nissan and other models, these four OYEAUTO iridium spark plugs are a direct-replacement option built to meet OEM-style fit and function. They use a fine iridium center electrode to resist wear, tolerate higher temperatures and deliver steady sparks under everyday driving conditions. The pack contains four plugs and covers a wide range of engines — from compact 1.3–1.8L units to larger 2.4L applications — making it a convenient kit for single-engine changes or phased maintenance.

Which cars and engines will these OYEAUTO plugs fit?

These plugs are intended for many model years and engine displacements across Hyundai, Kia and several other manufacturers. Compatibility includes popular compact and midsize models with 1.4L–2.4L engines; always verify part numbers and engine codes before purchase.

• Examples: Hyundai Elantra (2011–2020), Kona (2018–2021), Santa Fe Sport (2013–2018).
• Kia coverage: Forte/Forte5 (2014–2024), Soul (2012–2024), Optima (2011–2020), Seltos (2021–2025).
• Also fits select Honda, Toyota, Nissan, Mazda, Acura, Lexus, Mercedes-Benz and others — see detailed fitment list.
• Replace with referenced part numbers like 18846-11070 or SP149125AD when matching to your vehicle.

How do these iridium plugs affect daily driving and performance?

Iridium’s high melting point and fine-wire electrode promote stable ignition and reduce the frequency of misfires, which can help maintain smoother acceleration and dependable cold starts. While not a magic performance upgrade, they offer longevity and consistent combustion compared with many standard copper plugs.

• Sharper spark for more reliable ignition across rpm ranges.
• Improved resistance to electrode erosion means longer replacement intervals.
• May support modest fuel-efficiency consistency when plugs are worn out previously.
• Manufactured to meet typical OEM replacement intervals and specifications.

What are the build and warranty details I should know?

These plugs use a fine iridium center electrode bonded to a durable core and shell to withstand modern engine conditions. OYEAUTO backs the product with a 12-month warranty that covers manufacturing defects; return or replacement options are available if the plugs fail under normal use during the warranty period.

• Fine iridium center electrode for enhanced durability versus platinum or copper.
• Constructed for high-temperature stability and reduced electrode wear.
• 12-month warranty covers refunds or replacement for qualifying defects.
• Sold in a 4-piece set — enough for most 4-cylinder engines.

How should I confirm fitment before buying or installing?

Check your vehicle’s owner manual, under-hood parts label or existing spark plug part numbers to confirm compatibility. Cross-reference the listed replacement part numbers and the engine displacement/year ranges provided to avoid ordering the wrong plug type.

• Match part numbers such as 18846-11070 or SP149125AD when possible.
• Confirm engine size and year range against the product fitment table.
• When in doubt, consult a mechanic or your dealer with your VIN for exact fitment.
• These plugs are shipped in sets of four — suitable for most 4-cylinder engine swaps.

Who is this for: The OYEAUTO 4Pcs Iridium Spark Plug set is for DIYers and professional technicians seeking a durable, OEM-style ignition replacement for numerous Hyundai and Kia models as well as a wide array of Honda, Toyota, Nissan and other vehicles. Choose these plugs if you want a longer-life option than copper plugs, need reliable cold starts and consistent combustion across common 1.3L–2.4L engines, and want the reassurance of a 12-month parts warranty.