Mercedes-Benz Iridium Spark Plug A004159450326 FR6MPP33 Upgrade Preferred Spark Plug

For Mercedes-Benz C-Class, E-Class, S-Class and ML series post-2000 engines, this iridium spark plug (OEM: A004159450326 / FR6MPP33) installed in the cylinder head threads ignites the air–fuel mixture, ensuring smooth engine operation. Installation difficulty medium; suggested labor time 0.5–1 hour. If there is rough idle, weak acceleration, higher fuel consumption, or hard starting, electrode wear or carbon buildup is indicated; replace promptly.