MSD Direct Ignition Coil P/N:8287

Deliver a strong, consistent spark and keep every cylinder firing with the MSD Direct Ignition Coil 8287. It installs as a direct-fit replacement for the listed applications, including the 2005-2009 Chevrolet Corvette, 2005-2007 Hummer H2, 2005-2006 Pontiac GTO, 2006-2009 Chevrolet Trailblazer, and 2008-2009 Saab 9-7X — see the Buyer's Guide tab for the full list.

• Direct ignition design: a coil-on-plug unit that mounts directly at the spark plug, feeding spark to its cylinder.
• Core job: converts the vehicle's low battery voltage into the high-voltage current needed to fire the plug.
• Replacement fit: designed to install on the listed vehicles as a replacement for a worn or failed coil.

An ignition coil delivers the high-voltage pulse that jumps the spark plug gap. As it wears, you may notice engine misfire, rough idle, hesitation, hard starting, or an illuminated check engine light. Those symptoms can have other causes, so diagnose the source before replacing — if a failed coil is the cause, this unit replaces it. Coil quantity varies by engine; consult the vehicle service information for the number your application uses.

Manufacturer part number 8287.