Designed for Accord Civic Acura Iridium Spark Plug 12290-R41-L01 DILZKR7A11GS Precise Combustion

This replacement uses iridium electrodes with dual tips 12x28, offering higher ignition efficiency and longer life than nickel alloy plugs; resistance around 6 kΩ; suitable for Honda Accord, Civic, Acura from 2000 onward. Function: precisely control ignition timing to reduce carbon buildup and misfire risk; suitable for daily commuting or long drives. Installation replacement difficulty: medium; require dedicated spark plug socket and torque wrench; cold-weather operation recommended to avoid thread damage.