Ford Racing 3 Valve Zero Degree 12MM Spark Plugs
Part Number: M-12405-3V12MM
Our Price: $100.00
Description
- For use in engines with higher than stock cylinder combustion pressures
- One heat range colder than the stock Mustang GT plug
- Two heat ranges colder than the stock 5.4L truck 3-valve engine
- Sold in engine sets of 8
- Fits 2008 and newer 3V heads requiring the 12mm thread
Note: Engines with late style 12MM spark plugs can be identified by coil engineering number 8L3E
Engines with early style 16mm "High Thread" design spark plugs can be identified by coil engineering number 3L3E part number