Review on 🔥 NGK 7397 TR5IX Iridium IX Spark Plug, Set of 4 - Improve Engine Performance and Efficiency! by Carl Mayes

Economical iridium spark plugs that can be ordered as a set of eight (8) 5.3 liter V8 truck spark plugs. No problems with installation as well as plug lifespan and authentication. It is strongly recommended that you verify the required spacing for your particular application and set the appropriate spacing for each grounding electrode. Please do not assume that gapping is preset or correct. Also apply a small amount of anti-seize compound to each spark plug thread and apply (at least) your finger dielectric grease to the tip of the spark plug electrode. Greatly facilitates disassembly and subsequent maintenance.