DENSO 3534 Iridium Long Life Spark Plug

The DENSO 3534 Iridium Long Life spark plug delivers superior ignition performance and extended service life for demanding automotive applications. Featuring an ultra-fine 0.4mm iridium center electrode, this premium spark plug provides improved ignitability, better fuel efficiency, and reduced emissions compared to conventional plugs.

Key Features:

• 0.4mm iridium center electrode for concentrated spark energy and longer life
• Platinum ground electrode ensures consistent performance over extended intervals
• 360-degree laser welding for superior durability and heat dissipation
• Copper core electrode maximizes heat transfer to prevent overheating
• Manufactured to OE specifications for performance, durability, and emissions standards
• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties

DENSO Iridium Long Life spark plugs are engineered to deliver reliable ignition performance while extending service intervals, making them an excellent choice for drivers seeking both quality and value. The iridium construction resists wear far better than traditional nickel or platinum plugs, maintaining optimal electrode gap and firing efficiency throughout the plug's service life.