On a 2005 Ford Ranger :
The 2.3 liter Dual Over Head Cam , four cylinder engine has :
( 4 spark plugs )
There are ( 6 ) spark plugs
In a 2011 Ford Ranger : The 4.0 litre Single Over Head Cam , V6 engine has : ( 6 spark plugs )
There are ( 6 spark plugs ) on the Ford 4.0 liter V6 engine
The Ford 4.0 liter V6 engine has ( 6 spark plugs )
From the front of the engine, the spark plugs are numbered 1-2-3-4. The firing order is 1-3-4-2. - Haynes Repair Manual #36071, 1993-2005 Ford Ranger Pickups.
( 8 spark plugs ) for your 2001 Ford Ranger 2.5 liter 4 cylinder ( with Fords twin plug ignition system )
Motorcraft is best for Ford
On a 2002 Ford Ranger : Check the Vehicle Emissions Control Information ( VECI ) decal in the front of your engine compartment . It will show the type of spark plugs used and the spark plug gap
( 6 ) spark plugs
( 4 ) for the 2002 Ford Ranger 2.3 L - DOHC engine
spark plugs wiring diagram
On a 2002 Ford Ranger : The 2.3 liter Dual Over Head Cam four cylinder engine has ( 4 spark plugs )