NGK Spark Plug for BMW Alpina B7, B7L, B7 xDrive, and B7L xDrive (2011–2012)

This NGK 1555 spark plug fires the air-fuel mixture in each cylinder of the 2011–2012 BMW Alpina B7 and B7L, including the xDrive versions of both. NGK also identifies this plug by the code SIZKBR8A8HS, and it cross-references to BMW part number 12120038507. It is made in Japan and built to OE quality. A spark plug threads into the cylinder head and carries high voltage from the ignition coil across its electrode gap to light the charge. Over countless ignition cycles, deposits from fuel and oil build up on the electrode, and the plug gradually loses its ability to fire cleanly.

This NGK spark plug carries a 24-month or 24,000-mile parts warranty.

Worn plugs usually show up as misfiring, a check engine light, hesitation, loss of power, and poor fuel economy. Replacing them at the manufacturer's suggested service interval keeps performance and fuel economy where they should be, and the old plugs are worth checking for warning signs of failure when they come out. When ordering, match NGK number 1555 or code SIZKBR8A8HS to make sure you get this exact plug for the Alpina B7 family.

Technical Details

• Manufacturer: NGK, a brand of Niterra Co., Ltd., Nagoya, Japan
• NGK part number: 1555
• NGK code: SIZKBR8A8HS
• BMW cross-reference: 12120038507
• Country of manufacture: Japan
• Quality grade: OE
• GTIN/UPC: 00087295115558
• Warranty: 24 months or 24,000 miles

Common Questions

How do I know my spark plugs need replacing?
Common signs are misfiring, a check engine light, hesitation, loss of power, and poor fuel economy. Plugs also wear with use, so replace them at the manufacturer's suggested service interval even if no symptoms appear.

Does this plug match the BMW part number?
Yes. NGK 1555 cross-references to BMW part number 12120038507 and is graded OE quality.

Who makes NGK spark plugs?
NGK is a brand of Niterra Co., Ltd., a Japanese company founded in 1936 that supplies spark plugs to vehicle manufacturers as original equipment and to the aftermarket. This plug is made in Japan.

PMB Performance sells NGK ignition parts for European cars, including this plug for the Alpina B7.

Fitment & Compatibility

Check the fitment table below to confirm this spark plug fits your car. Make sure your model and body length match the table before ordering. Send us your VIN and we will confirm fit for you.