NGK Spark Plugs - #7164 - TR55IX Mercury-300HP-Verado-6-CYL-2023 Connection - 3/8" NPT

Connection - 3/8" NPT

IPX7-rated structural casing designed to withstand heavy downpours and float on the surface for fast recovery if dropped over the gunwale

Fuse holders accept commonly available AGC and MDL glass fuses

99% Highly pure alumina silicate insulator

Coated Motor

NGK Spark Plugs - #7164 - TR55IX Mercury-300HP-Verado-6-CYL-2023 Connection - 3/8" NPTDesigned specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling. Fine tipped iridium center electrode ensures high durability and consistently stable spark Iridium alloy with an extremely high melting point Tapered ground electrode maximizes fuel burn Outstanding acceleration, high fuel efficiency and durability Ultimate design, technology and performance Sold in