<p>For BMW vehicles, this genuine OEM Ignition Coil Pack 8611236 is a used part sourced from a donor. It delivers the high-voltage spark to the cylinder. Compatible with models using the 3.0L turbocharged inline-six or the 4.4L twin-turbo V8 (both gas DOHC). When this coil fails, expect misfires, rough idle, and a check-engine light.</p><p><strong>Fits:</strong> BMW 550i (2015-2016), BMW 550i GT (2015), BMW 550i GT xDrive (2015-2017), BMW 550i xDrive (2015-2016), BMW 650i (2015-2018), BMW 650i Gran Coupe (2015-2019), BMW 650i xDrive (2015-2018), BMW 650i xDrive Gran Coupe (2015-2019), BMW 750Li (2015), BMW 750Li xDrive (2015), BMW 750i (2015), BMW 750i xDrive (2015-2019), BMW Alpina B6 xDrive Gran Coupe (2015-2019), BMW Alpina B7 (2015-2019), BMW Alpina B7 xDrive (2015), BMW Alpina B7L (2015), BMW Alpina B7L xDrive (2015), BMW M5 (2015-2022), BMW M550i xDrive (2018-2020), BMW M6 (2015-2018), BMW M6 Gran Coupe (2015-2019), BMW X5 (2015-2023), BMW X6 (2015-2019), BMW X7 (2019-2023)</p><p><strong>OEM part number:</strong> 8611236.</p><p><strong>Condition:</strong> Used OEM, pulled in-house from a donor vehicle scanned with factory diagnostic tools; tested where possible, with per-part condition notes. 30-day returns.</p>