The NGK Spark Plugs BMR6A spark plug is designed to provide dependable ignition performance and consistent engine operation. Manufactured by NGK Spark Plugs, this plug features the manufacturer and vendor part number 7421, making it easier to identify the correct replacement for compatible small-engine applications. Its BMR6A model designation supports accurate fitment when replacing an original-equipment spark plug.
Trivalent metal plating provides strong resistance to corrosion and seizing, helping simplify installation and future service. The pure alumina silicate ceramic insulator delivers high strength and efficient heat transfer, while the copper core helps remove heat from the firing end for reliable operation across normal engine conditions. Triple seals help prevent leakage, and corrugated ribs help reduce the risk of electrical flashover.
Feature: Trivalent metal plating helps resist corrosion and seizing
Feature: Pure alumina silicate ceramic insulator supports strength and heat transfer
Feature: Copper core aids in heat removal
Feature: Triple seals help prevent leakage
Feature: Corrugated ribs help prevent flashover
Verify the BMR6A model and NGK Spark Plugs part number 7421 against the equipment manufacturer’s specifications before ordering. This spark plug is intended for compatible small engines and should be installed according to the engine manufacturer’s service instructions, including the specified gap and torque requirements.
Features:
- Trivalent metal plating helps resist corrosion and seizing
- Pure alumina silicate ceramic insulator supports strength and heat transfer
- Copper core aids in heat removal
- Triple seals help prevent leakage
- Corrugated ribs help prevent flashover