NGK OEM Spark Plug for 175-500HP (450R)(500R) V6 (3.4L) & V8 (4.6L) Engines (33-8M0135348) Fuel Filters & Water Separators Surface prepped with an adhesion

Surface prepped with an adhesion promoter type of primer for ease of paint applications or further prime coating

Approved Hull Material: Fiberglass / Metal

Also suitable for long-term use in seldom-used engines

They use a proprietary line that is UV resistant to make your rigging seasons last longer

The readings whilst tacking are always the same

NGK OEM Spark Plug for 175-500HP (450R)(500R) V6 (3.4L) & V8 (4.6L) Engines (33-8M0135348) Fuel Filters & Water Separators Surface prepped with an adhesionSpark plugs are responsible for providing an ignition source inside your engines combustion chamber. Energy is transferred from the ignition coil to the plug which creates a spark igniting the air fuel mixture. Our technicians and Mercury recommends replacement at the 300 hour service maintenance interval. NGK Fine Wire Platinum Tipped Center Electrode ensures higher durability, deliver slow wear rate, stable spark, superior anti fouling, improved