C 2500 Truck 2WD V8-454 7.4L VIN N TBI (1995)
Spark Plug: Application and ID
Spark Plug Coding
Spark Plug Codeing Legend
DESCRIPTION
Resistor-type, tapered-seat spark plugs are used on this engine. No gasket is used on these spark plugs. A dot before the spark plug code or the
letter "C" after the number in the code indicates the spark plug has a copper core. Refer to Specification / Mechanical or to the vehicle emissions
control information label for correct gap information.