6pcs Iridium Spark Plugs For 1999-2007 & 2011-2013 Chevrolet Silverado 1500 4.3l

Details:

How spark plugs work When an engines piston (a moving part in the combustion chamber) compresses the air-fuel mixture in the cylinder, a spark plug delivers a precisely timed electric spark. This spark ignites the mixture, causing a controlled explosion. The explosion generates a powerful force that drives the piston down and converts chemical energy into mechanical energy, which powers your car and gets it moving. Replacing spark plugs When to replace your spark plugs depends on a few factors, ...

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