Bosch Spark Plug P/N:6721
Bosch 8108 spark plug for the 2009-2010 Ford F-150 V8 4.6L and other vehicles ignites the air-fuel mixture in the cylinder. Its double platinum design reduces gap erosion and meets Original Equipment specifications for double platinum spark plugs.
Hard starting, a misfire or a rough idle can come from a worn plug, but ignition coils, wiring or fuel delivery can produce them too, so track down the cause before buying plugs. With the engine off and cool, a removed plug with a rounded electrode tip or heavy deposits is worn.
This is also a spark plug for the 2005-2008 Ford Escape 4-cylinder 2.3L and the 2009-2012 Escape V6 3.0L, and for the 2010-2012 Ford Fusion V6 3.0L. The 2009-2010 Ford F-150 V8 4.6L takes eight, and each listing is one plug.
Fit and size
Build and materials
One spark plug.
Product information is for general reference and may contain errors. See our Disclaimer.
Is this the right Ford F-150 spark plug for a 2009-2010 V8 4.6L?
Yes. Bosch 8108 is listed for the 2009-2010 Ford F-150 V8 4.6L, which takes eight plugs. If your car is not named here, look it up by year and engine in the "Vehicles it fits" section.
Is this Bosch spark plug pre-gapped?
Yes. Bosch 8108 comes pre-gapped, and its nickel-plated threads mean no gap adjustment or anti-seize is needed.
How long do Bosch platinum spark plugs last?
The platinum firing pin and laser-welded platinum inlay on Bosch 8108 provide 3 times longer life than conventional copper spark plugs.
Does this plug have a resistor, and what is in its core?
Yes, this spark plug is a resistor type with a copper core, which gives a broader heat range to resist pre-ignition and fouling.
Is Bosch 8108 listed for the 2005-2008 Ford Escape 4-cylinder 2.3L?
Yes. That Escape takes four plugs, and the 2009-2012 Escape V6 3.0L is also listed and takes six.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.