Description
BMW Spark Plug (Set Of 4) – B46 / B48 / B58 / MINI All / F54 / F55 / F56 / F57 / F60
12120040551-NGK-KT4
Please note Tightening torque for this spark plug is 23 ± 3 Nm, the gap is preset for OE applications only, a special 14mm, 12 point spark plug socket is required for the removal and installation of this plug, please see p/n for the correct tool.
NGK’s Laser Iridium Spark Plugs Provide Superior Ignitability and Long Service Life.
Fine Wire Iridium Tipped Center Electrode and Fine Wire Platinum Tipped Ground Electrode Ensures Slow Wear Rate Providing Stable Idle, Superior Anti Fouling, Improved Fuel Efficiency and Lower Emissions.
Features and Benefits:
- Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
- Corrugated Ribs Prevent Flashover
- Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
- Copper Core Aids in Heat Removal
- Triple Seals Prevent Leakage





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