Walker 921-2111 Ignition Coil

Walker ThunderSpark Ignition Coil for BMW and Mini

Walker ThunderSpark ignition coil Part Number 921-2111 is a direct-fit ignition coil for a wide range of BMW and Mini applications. It is listed for many 2006-2016 BMW models and 2007-2015 Mini Cooper variants, including BMW 328i, 335i, 528i, X3, X5, and Mini Cooper Countryman.

Key Features

• Walker ThunderSpark ignition coil for gasoline engine ignition systems
• Fits a broad range of BMW and Mini vehicles across 2006-2016 model years
• Direct application coverage for many inline-6 and V8 BMW platforms
• Part Number 921-2111 for catalog and service lookup
• Compatible with multiple BMW 550i, 650i, 750i, M5, M6, X5, and X6 applications

Fitment Coverage

• Fits 2011-2016 BMW 550i, N/A
• Fits 2010-2016 BMW 550i GT xDrive, N/A
• Fits 2011-2016 BMW 550i xDrive, N/A
• Fits 2012-2016 BMW 650i, N/A
• Fits 2013-2016 BMW 650i Gran Coupe, N/A
• Fits 2012-2016 BMW 650i xDrive, N/A
• Fits 2013-2016 BMW 650i xDrive Gran Coupe, N/A
• Fits 2009-2016 BMW 750i, N/A
• Fits 2010-2016 BMW 750i xDrive, N/A
• Fits 2013-2016 BMW M5, N/A
• Fits 2012-2016 BMW M6, N/A
• Fits 2014-2016 BMW M6 Gran Coupe, N/A
• Fits 2007-2016 BMW X5, N/A
• Fits 2008-2016 BMW X6, N/A
• Fits 2010-2015 BMW 550i GT, N/A
• Fits 2009-2015 BMW 750Li, N/A
• Fits 2010-2015 BMW 750Li xDrive, N/A
• Fits 2010-2015 BMW 760Li, N/A
• Fits 2007-2015 Mini Cooper, N/A
• Fits 2011-2015 Mini Cooper Countryman, N/A
• Fits 2013-2015 Mini Cooper Paceman, N/A
• Fits 2008-2013 BMW 128i, N/A
• Fits 2007-2013 BMW 328i, N/A
• Fits 2009-2013 BMW 328i xDrive, N/A
• Fits 2012 BMW M5, N/A
• Fits 2007-2012 BMW X3, N/A
• Fits 2008-2011 BMW 528i, N/A
• Fits 2008-2011 BMW Z4, N/A
• Fits 2009-2010 BMW 135i, N/A
• Fits 2009-2010 BMW 528i xDrive, N/A
• Fits 2007-2008 BMW 328xi, N/A
• Fits 2007-2008 BMW 335i, N/A
• Fits 2008 BMW 528xi, N/A
• Fits 2007 BMW 335xi, N/A
• Fits 2006-2007 BMW 525i, N/A
• Fits 2006-2007 BMW 525xi, N/A
• Fits 2006-2007 BMW 530i, N/A
• Fits 2006-2007 BMW 530xi, N/A
• Fits 2006-2007 BMW Z4, N/A
• Fits 2006 BMW 325i, N/A
• Fits 2006 BMW 325xi, N/A
• Fits 2006 BMW 330i, N/A
• Fits 2006 BMW 330xi, N/A

What This Ignition Coil Helps Address

• Engine misfire conditions tied to weak spark output
• Rough idle on BMW 328i, 335i, 528i, and similar applications
• Hard starting caused by ignition coil failure
• Loss of power or hesitation under acceleration
• Check engine light concerns related to ignition performance

Installation Notes and Tips

Verify the engine application and model year against the fitment list before ordering. This part number, 921-2111, is listed for multiple BMW and Mini platforms, so matching the exact vehicle configuration is important. If replacing a failed coil, inspect the spark plug and surrounding ignition components for wear or contamination during service.

Quality Assurance

Walker ThunderSpark is the product line identified for this ignition coil, and the catalog fitment covers 2006-2016 BMW and 2007-2015 Mini applications. This part cross-references standard ignition coil applications used on the same vehicle platforms.