Mercedes-Benz GLK260 2.0T Iridium Platinum Spark Plug 90654 SILZKFR8E7S

Mercedes-Benz GLK260 2.0T Iridium Platinum spark plug (model SILZKFR8E7S) installed in the cylinder head; precise ignition of the air-fuel mixture to ensure smooth operation and improved fuel economy. OEM number corresponds to GLK260; designed for this model to ensure factory-grade match. Installation difficulty moderate; professional technician recommended; labor about 1-1.5 hours. If idle jitter, weak acceleration, rising fuel consumption, or starting difficulty occurs, spark plug electrode wear or carbon buildup is common; replace to restore power output.