Part record

3.5L EcoBoost Spark Plug, Gen1 (current number CYFS-12-YT4X)

Name: 3.5L EcoBoost Spark Plug, Gen1 (current number CYFS-12-YT4X)
Brand: Ford

verified OEM PNCYFS-12-YT4X BrandFord

Replaces CYFS-12-YT3, CYFS-12F-3.

The catalog's current Gen1 plug; the earlier CYFS-12-YT3 (carded, $13.80) is superseded by it. Turbo-GDI service interval is shorter than NA - see Ignition misfires: spark plugs and COP coils.

Where to buy

Not listed online at Dave's Auto Center yet. Ask Dave's Auto Center about this part, quoting part number CYFS-12-YT4X.

3.5L EcoBoost Spark Plug, Gen1 (current number CYFS-12-YT4X)

Where to buy

Fits (23 configurations)