BMW Spark Plug Kit - NGK 12122455258KT1

Spark plugs wear out over the course of countless ignition cycles, during which deposits from fuel and oil may accumulate on the electrode. Faulty spark plugs can lead to poor engine performance, evidenced by reduced power, a misfire, and poor fuel economy.

Please note Tightening torque for this spark plug is 23 ± 3 Nm. A special 14mm, 12-point spark plug socket is required for the removal and installation of this plug, please see p/n 83300495560 for the correct tool.

Specifications:
Center electrode core material: Copper
Center electrode tip material: Iridium
Electrical terminal type: Non-removable nut
Ground Configuration: Projected square, taper square
Ground electrode core material: Copper
Ground electrode tip material: Platinum
Ground electrode quantity: 1
Ground electrode tip design: SPE (Square platinum electrode)
Hex size: 14mm bi-hex (12 point) - see p/n 83300495560 for the correct socket
Thread size: 12x1.25mm
Torque spec: 23 ± 3 Nm (~17 ft-lb)
Insulator Height: 50mm
Manufacturer heat range: 8
Pre-gap size: .031" (.8mm)
Reach: 28.5mm
Resistance: 5000 ohms
Resistor Type: Yes
Seat Type: Flat