Denso 673-9335 Direct Ignition Coil

Direct ignition coil replacement

DENSO 673-9335 is a direct ignition coil stick coil built for BMW and Mini applications that use this style of ignition system. It is a DENSO Certified Replacement Part for a precise fit and consistent ignition performance.

Fits 2006-2016 BMW Z4, N/A. Fits 2011-2013 BMW 335is, N/A. Fits 2011-2012 BMW 740i, N/A. Fits 2011-2012 BMW 740Li, N/A. Fits 2011 BMW 1 Series M, N/A. Fits 2008-2010 BMW 135i, N/A. Fits 2009-2010 BMW 335i xDrive, N/A. Fits 2008-2010 BMW 535i, N/A. Fits 2009-2010 BMW 535i xDrive, N/A. Fits 2008-2010 BMW X6, N/A. Fits 2007-2010 Mini Cooper, N/A. Fits 2007-2008 BMW 335i, N/A. Fits 2007-2008 BMW 335xi, N/A. Fits 2008 BMW 535xi, N/A. Fits 2001-2006 BMW M3, N/A.

Key features

• Stick coil design for direct ignition applications
• 12.0-volt electrical specification
• Black housing
• DENSO Certified Replacement Part
• Part number 673-9335 for accurate ordering and lookup

Detailed description

This ignition coil is engineered as a direct replacement for select BMW and Mini engines that use stick coil ignition. DENSO’s testing and inspection process is used to verify quality before release, and the 673-9335 part number helps match the correct coil to the application. It is a practical choice for BMW 335i, BMW Z4, and Mini Cooper service where the original coil has failed or ignition output has become inconsistent.

This part cross-references Delphi GN10328 and Standard Ignition UF804 for the same application.

What it is used for

• Misfire diagnosis tied to a weak or failed ignition coil
• Rough idle caused by inconsistent spark delivery
• Hard starting related to ignition output loss
• Check engine light conditions associated with coil failure
• Restoring ignition performance on BMW and Mini applications

Installation notes and tips

Verify the part number 673-9335 against the vehicle’s original coil and connector style before installation. Confirm the application by year, make, and model, especially on BMW 335i, BMW Z4, and Mini Cooper vehicles. Inspect spark plugs and related ignition components during service to avoid repeat coil failure.

Quality assurance

DENSO positions this coil as a certified replacement part and states that it uses extensive testing and inspection processes to maintain product quality.