BMW NGK Spark Plug For B58 Engines (incl. M140i, M240i, 340i, 440i)-R44 Performance

BMW NGK Spark Plug For B58 Engines (incl. M140i, M240i, 340i, 440i)

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SKU: 94201

NGK Laser Iridium replacement plugs for BMW B58 engines.

With the smallest tip diameter available, OE Iridium spark plugs provide superior ignitability and long service life. The iridium/platinum surfaces ensure a slow wear rate, providing stable idle and superior anti-fouling.

  • Laser-welded iridium centre electrode tip
  • Platinum disc welded to the backside of the ground electrode provides long long-life
  • Trivalent metal plating for superior anti-corrosion and anti-seizing
  • Faster starts and quicker acceleration
  • Better fuel economy and lower emissions
  • Best OEM Iridium spark plug available
  • OEM-approved design
  • If you are unsure as to whether this is the correct part for your vehicle, please don't hesitate to contact us. 


    • Genuine NGK Laser Iridium Spark Plug
    • 1 Step colder than the factory-fitted spark plugs fitted to N58 engines
    • 1 Per box.
    • Spanner Size : 14.0 mm Bi-Hex
    • Outer thread: 12 mm
    • Thread Length: 26.5 mm
    • Spark Position: 4.7 mm
    • Connector type :
    • Material: Iridium
    • interference Suppression: 5kOhm
    • Sealing Type: Copper gasket


    These spark plugs are for the following BMW engines; 

    • Fits B58 Engines
    • BMW 1 Series M140i
    • BMW 2 Series M240i
    • BMW 3 Series 340i
    • BMW 4 Series 440i


    We offer worldwide shipping on all products.
    If upon receiving your product you wish to return it, we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy"