OEM MerCruiser spark plug: NGK 5599 ITR4A-15 (Mercury part numbers: 8M2018369, 8M0204739)
Fits Select MerCruiser: 4.3L, 5.0L, 5.7L, and 6.2L MPI engines (2001 & newer)
Genuine NGK spark plug
Spark plugs come pre-gapped.
Iridium at the fine-wire center electrode and platinum at the ground electrode provides maximum durability and performance
The platinum at the ground electrode adds extra protection against plug wear and gap erosion
Sold individually (price is per plug)
Model: 5599
OEM MerCruiser spark plug: NGK 5599 ITR4A-15 (Mercury part numbers: 8M2018369, 8M0204739)
Fits Select MerCruiser: 4.3L, 5.0L, 5.7L, and 6.2L MPI engines (2001 & newer)
Genuine NGK spark plug
Spark plugs come pre-gapped.
Iridium at the fine-wire center electrode and platinum at the ground electrode provides maximum durability and performance
The platinum at the ground electrode adds extra protection against plug wear and gap erosion
Sold individually (price is per plug)
Model: 5599