NGK Premium RX Spark Plugs LKR6ARX-P No. 91516 [Punch Crimp Type] [Box of 4]

Featuring the world's first new material, the "Ruthenium-Infused Center Electrode." This takes your driving experience to the next level. This high-performance spark plug surpasses all other performance requirements for a spark plug, including ignition, combustion efficiency, fouling resistance, and wear resistance.

<<Excellent Combustion Efficiency>> Premium RX plugs deliver fast flame spread upon ignition, achieving outstanding combustion efficiency. Rapid combustion minimizes combustion loss within the cylinder, maximizing engine performance in areas such as fuel economy, power, and acceleration, resulting in premium driving.

Startability - Smooth starting, even in low temperatures- The combination of a platinum protruding outer electrode and an ultra-fine center electrode delivers excellent discharge characteristics. The result is an environment conducive to spark generation. This improves engine starting in low temperatures and acceleration response when the accelerator is applied.

JC08 Mode Consumption -Excellent Combustion for Improved Fuel Economy! - With outstanding ignition and combustion efficiency, these plugs achieve a 2.2% (compared to our previous model) increase in combustion compared to standard plugs, even under the new JC08 mode standard. These premium plugs deliver a comfortable ride even with less gasoline.

Acceleration -Stress-Free Premium Driving- Outstanding ignition performance improves throttle response during acceleration. From low to high RPMs, they maximize engine performance and deliver superior acceleration without stress.

Heat Resistance -Electrode Shape for High-Temperature Operation- The platinum protruding outer electrode allows for a shorter outer electrode compared to conventional plugs. By lowering the electrode's heat exposure temperature, oxidation and breakage due to heat are minimized. Thread Diameter (mm): 12 Thread Length (mm): 26.5 Hexagonal Width (mm): 16