On a 1998 Ford Expedition :
There are ( 8 spark plugs ) for the 4.6 and 5.4 liter V8 engines
4 spark plugs
4 Spark plugs
You will need 12 bocsh spark plugs. These engines have 2 spark plugs per cylinder.
you will need a 5/8 spark plugs stocket and a 7mm stocket have fun it not a go job about 5hr. to do just did one Sunday
6 Its a V6
Two
On a Ford Excursion ( if it has a gasoline engine ) ( the 5.4 liter V8 engine has 8 spark plugs ) ( the 6.8 liter V10 engine has 10 spark plugs )
There are ( 6 spark plugs ) on the Ford 4.0 liter V6 engine
There are ( 6 spark plugs ) for the 3.8 liter V6 engine in a 2000 Ford Mustang
Most had a V-6 under the hod, which would mean 6 spark plugs.
( 6 spark plugs ) for your 4.0 liter SOHC , V6 engine
Oil drain plugs, Coolant drain plugs, spark plugs, need to know which plugs you are asking about.