EIGHT (8) New Autolite HT0 Revolution Platinum "16MM High Thread Design" spark plugs that fit a 2005-08 Ford Mustang GT with the 4.6 liter V8. The HT0 is one heat range colder than the stock spark plugs for High-Performance applications. These are the 16 MM plugs that fit 2005-early 2008 Ford Mustang 4.6 liter GT’s. These are Brand New and the only reason I am selling is I have a later model 2008 that uses the 12 MM sized plugs. You can confirm which plugs your car uses by looking at the coil engineering number;
--2005-2008 engines with early style 16 mm "High Thread" design spark plugs can be identified by coil engineering number 3L3E part number
--2008 engines with late style 12 mm spark plugs can be identified by coil engineering number 8L3E
--All 2009 engines use 12 mm spark plugs
$50.00 plus shipping
--2005-2008 engines with early style 16 mm "High Thread" design spark plugs can be identified by coil engineering number 3L3E part number
--2008 engines with late style 12 mm spark plugs can be identified by coil engineering number 8L3E
--All 2009 engines use 12 mm spark plugs
$50.00 plus shipping