The NGK Spark Plugs BR10ES Solid Spark Plug is designed to provide dependable ignition performance for compatible powersports, marine, and small-engine applications. Built with NGK’s proven spark plug technology, this plug supports consistent combustion, reliable starting, and efficient engine operation. The BR10ES Solid model uses a solid terminal design and is intended for engines specified for this plug configuration.
Trivalent metal plating provides superior resistance to corrosion and seizing, helping simplify installation and future service. A pure alumina silicate ceramic insulator delivers high strength and improved heat transfer, while the copper core helps remove heat from the firing end for dependable thermal performance. Triple seals help prevent combustion-gas leakage, and corrugated insulator ribs help reduce the risk of flashover for reliable ignition under demanding operating conditions.
Use the NGK Spark Plugs BR10ES Solid Spark Plug as a direct replacement when the original equipment application specifies NGK part number 4684 or the BR10ES Solid model. Verify engine fitment, heat range, thread specifications, and terminal style before installation. This product is supplied by NGK Spark Plugs and carries manufacturer part number 4684 and vendor part number 4684.
Features:
- Application: Fits compatible engines specified for the NGK BR10ES Solid spark plug
- Brand: NGK Spark Plugs
- Model: BR10ES Solid
- Manufacturer Part Number: 4684
- Vendor Part Number: 4684
- Corrosion Protection: Trivalent metal plating helps resist corrosion and seizing
- Insulator: Pure alumina silicate ceramic provides strength and improved heat transfer
- Sealing: Triple seals help prevent leakage
- Flashover Resistance: Corrugated ribs help reduce the risk of flashover
- Heat Management: Copper core aids in removing heat from the firing end