NGK Laser Iridium Trailing Spark Plugs for 2004-2011 Mazda RX-8, Box of 4 (RE9B-T)

Fits 2004-2011 Mazda RX-8 (1.3L R2).

NGK Laser Iridium spark plugs are engineered to provide the highest levels of performance and longevity for the Mazda Renesis rotary engine. These RE9B-T trailing spark plugs feature an iridium-tipped center electrode, which is six times harder than platinum, ensuring consistent ignition across an extended service life. The fine-wire design improves ignitability while reducing the voltage required to bridge the gap.

• OE-Specific Design: Developed specifically for rotary engine trailing positions to ensure complete combustion and prevent fouling.
• Iridium & Platinum Construction: Features an iridium-tipped center electrode and a platinum pad on the ground electrode for even wear in high-heat environments.
• Superior Insulation: Pure alumina silicate ceramic insulator provides high dielectric strength and optimized heat transfer to prevent overheating.
• Copper Core Technology: A 98% pure copper core aids in heat removal to prevent pre-ignition and electrode melting.
• Advanced Plating: Trivalent metal plating provides superior anti-corrosion and anti-seizing properties, making future plug changes easier.
• Gas-Tight Seal: Triple gasket seals prevent combustion gas leakage and maintain compression.
• Manufacturer Part Number: RE9B-T
• Quantity: Box of 4