Constructed for long life and optimum performance, these Quicksilver Spark Plugs ensure your engine delivers reliable power for hours on the water. Designed to replace NGK BR6ES, these plugs feature trivalent metal plating for anti-corrosion and a pure alumina silicate ceramic insulator for superior heat transfer. Validated for marine use, they are the ideal choice for maintaining classic MerCruiser L4 and L6 engines.
- Direct replacement for engines requiring NGK BR6ES
- Fits vintage MerCruiser 110, 120, 140, 150, 160, 165, and 200 models
- Trivalent metal plating prevents corrosion and thread seizing
- Copper core aids in efficient heat removal from the combustion chamber
- Includes four (4) high-quality marine-grade spark plugs
