According to the 2001 Ford Explorer Owner Guide :
For the 4.0 liter SOHC , V6 engine :
( .052 to .056 inch )
* confirm with the Vehicle Emission Control Information ( VECI ) sticker in your engine compartment . The sticker is at the front of your engine compartment , just in front of the top of the radiator *
For a 2001 Ford Explorer Sport Trac : There are ( 6 spark plugs ) for your 4.0 liter V6 engine
The 2001 Ford Explorer has a V6 engine.
.054 inch
.054 inch ( for the 4.0 L - SOHC - V6 engine , according to motorcraft.com )
firewall 3 - 6 2 - 5 1 - 4 front ( The spark plug location numbers in the engine cylinder heads )
The 2001 Ford Explorer has a 4.0 L base engine size.
The spark plug gap is .042" to .046".
0.044 Autolite-Platinum / Spark PlugFor your 2001 Ford Taurus 3.0L EFI 6cyl Part Number: AP764
The 2001 Ford Explorer's engine produces 210 hp @ 5250 rpm.
Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of the engine compartment ( it will show what type of spark plugs to use and the spark plug gap )
The 2001 Ford Explorer's engine produces 240 ft-lbs. @ 3250 rpm.
The proper spark plug gap for a 2001 Ford F150 4.6 V8 is .054"