Mercury/MerCruiser NGK Spark Plug ITR4A15 - 8M0204739

Mercury/MerCruiser NGK Spark Plug ITR4A15 - 8M0204739 

NGK Spark Plug ITR4A15, Sold Individually.

The ITR4A-15 spark plugs come pre-gapped as specified by your engine manufacturer. 

Fits:

• 4.3L MPI Alhpa RWC (SN 0M615000 & Above)
  • 6 Required
• 4.3L MPI Bravo RWC (SN 0M615000 & Above)
  • 6 Required
• 5.0L / 5.7L MPI Alpha RWC – GM (SN 0W06000 & Above)
  • 8 Required
• 5.0L / 5.7L / 6.2L MPI Bravo RWC – GM (SN 0W0600 & Above)
  • 8 Required

Alternative Part #s: 8M2018369 & 884019001