MKT FWD V6-3.7L (2010)
Spark Plug: Specifications
Gap
Engine Ignition 3.5L
Spark plug gap.........................................................................................................................................................................1.29-1.45 mm (0.051-0.057 in)
Engine Ignition 3.5L (GTDI)
Spark plug gap.........................................................................................................................................................................0.81-0.97 mm (0.032-0.038 in)