Platinum Spark Plug

Key specifications include a 14x1.25mm thread size, a 26.5mm reach, and a 14mm bi-hex (12-point) hex size, requiring a specific socket for installation. The recommended torque specification is 23 ± 3 Nm (approximately 17 ft-lb), and the insulator height is 24mm. This plug is a resistor type with a heat range of 6. Proper maintenance of the ignition system is crucial for preventing issues such as misfiring, check engine lights, hesitation, loss of power, and poor fuel economy. Replacing spark plugs at manufacturer-recommended intervals, such as the 45,000-mile interval for BMW N54 engines, is a straightforward maintenance task that can significantly improve vehicle operation. This Bosch spark plug is a direct replacement for BMW part number 12120037244 and is also known by Bosch part number 0242140507.