Yes, and the gap is .051, set at the factory. DO NOT GAP THEM OR YOU WILL RUIN THE PLATINUM COATING ON THE TIPS!
No.
.054
4
4
50,000 miles.
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 )
opposite end of the spark plug wire from the spark plugs
Yes ( the 2.0 liter four cylinder gasoline engine used in North America does ) on a 2009 Ford Focus . The four spark plugs are under the four individual ignition coils
In a 2011 Ford Ranger : The 4.0 litre Single Over Head Cam , V6 engine has : ( 6 spark plugs )
.054"
No
For the US model Ford Focus (2006), spark plugs are the only thing to replace. There are no spark plug wires. Ford recommends spark plug replacement at 100k miles.