Spark Plug Iridium Long-Life - Denso Iridium Long 3484

["Spark Plug - Iridium Long Life (SIP)", "Gap 0.032", "DENSO is O.E. Manufacturer / Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap", "OE"]

Spark plugs ignite the compressed air/fuel mixture in each cylinder, and their condition directly affects combustion efficiency, fuel economy, and emissions. Signs of worn plugs include: difficulty starting, a rough idle, a hesitation or misfire under acceleration, reduced fuel economy, or a check engine light with misfire codes. Replace spark plugs on schedule - new plugs restore clean ignition performance and can noticeably improve fuel economy.

Denso Iridium Long Life spark plugs feature 0.4mm iridium center electrodes and platinum ground electrodes for ultimate performance and extended service intervals up to 120,000 miles. As original equipment on Toyota and Lexus vehicles, these plugs deliver unmatched reliability, fuel efficiency, and smooth operation.