If you are unsure what engine your car has look at the VIN (Vehicle Identification Number). You can find it printed on your registration or on the car itself you can find it by looking through the bottom corner of the windshield on the drivers side or the drivers side door jam sticker. The 8th character identifies the engine. The engines are all 6 cylinders unless otherwise indicated. The codes are:
D: 4 2.5 HSC 4 CYLINDER
4: ESSEX 3.8 OHV
U: VULCAN 3.0 OHV
1: FFV VULCAN 3.0 OHV (flex fuel/methanol)
2: FFV VULCAN 3.0 OHV (flex fuel/E85 ethanol)
S: DURATEC 3.0 DOHC
Y: YAMAHA 3.0 SHO DOHC
P: YAMAHA 3.2 SHO DOHC
N: YAMAHA 3.4 SHO DOHC 8 CYLINDER
W: 3.5 CYCLONE DOHC
T: 3.5 ECOBOOST DOHC
3: 2.0 ECOBOOST I4 4 CYLINDER
A visual guide can be found here:
Engines | Taurus/Sable Encyclopedia
D: 4 2.5 HSC 4 CYLINDER
4: ESSEX 3.8 OHV
U: VULCAN 3.0 OHV
1: FFV VULCAN 3.0 OHV (flex fuel/methanol)
2: FFV VULCAN 3.0 OHV (flex fuel/E85 ethanol)
S: DURATEC 3.0 DOHC
Y: YAMAHA 3.0 SHO DOHC
P: YAMAHA 3.2 SHO DOHC
N: YAMAHA 3.4 SHO DOHC 8 CYLINDER
W: 3.5 CYCLONE DOHC
T: 3.5 ECOBOOST DOHC
3: 2.0 ECOBOOST I4 4 CYLINDER
A visual guide can be found here:
Engines | Taurus/Sable Encyclopedia