All Spark Plug Honda Outboard Spark plug 2hp Thru 225hp Mercuriser AC Delco spark plug 41-983 496 Mag 8.1L Mercuriser ITR4A15 spark plug 41-993 4.3L 6.2L Mercuriser MR43LTS spark plug 3.0L 4.3L 5.0L 5.7L 6.2L Mercuriser Set of 4 spark plug 3.7L 165 170 470 488 Mercuriser Set of 6 spark plug 175 185 205 4.3L Mercuriser Set of 6 spark plugs 4.3L Mercuriser spark plug 175 185 205 4.3L Mercury Mariner Outboard Spark plug 2hp – 350hp Mercury Mariner Outboard Spark plug ZRR5F 150hp NGK BKR6E-E SPARK PLUG Suzuki Spark Plug 2-Stroke Models 2hp Thru 225hp Suzuki Spark Plug 4-Stroke Models 2.5hp Thru 300hp Tohatsu Spark Plugs All Models 2.5 Thru 140hp Yamaha Outboard Spark plug 2hp Thru 350hp