.044 inch , according to Ford parts . com
( check the vehicle emission control information decal in the engine compartment )
The 2006 Ford Taurus has a V6 engine.
0.042-0.046 or 1.1-1.2 mm for 2006 ford taurus with 3.0L V6 vulcan and 3.0L FFV V6
The 2006 Ford Taurus has a 3.0 L base engine size.
The 2006 Ford Taurus's engine produces 153 hp @ 5000 rpm.
The 2006 Ford Taurus's engine produces 186 ft-lbs. @ 3250 rpm.
The spark plug gap, for your 2004 Ford Taurus 3.0 liter engine, is .009. Most spark plugs will come pre-gapped.
The spark plug gap for a 1990 Ford Taurus 3.0L engine should be set at .044 inches. A 4.2 liter engine would have a gap between .052 and .056 inches.
Check the Vehicle Emission Control Information ( VECI ) decal located in the front of your engine compartment ( it will show what type of spark plugs to use and the spark plug gap )
3.0 Liter V6
I was looking at the 2006 Ford Taurus owners manual and it shows : The 3.0 liter " Vulcan " V6 engine ( and its flex fuel version ) That engine is an Over Head Valve / pushrod design engine
0.044 Autolite-Platinum / Spark PlugFor your 2001 Ford Taurus 3.0L EFI 6cyl Part Number: AP764
With a socket set :)