The NGK Spark Plugs BR9HS spark plug is designed to provide dependable ignition performance for compatible engines and powersports applications. This standard-size plug features a durable construction engineered for consistent spark delivery, efficient combustion, and reliable operation under demanding conditions. The model is BR9HS, with manufacturer part number 4522 and vendor part number 4522.
NGK’s trivalent metal plating provides enhanced resistance to corrosion and helps reduce the potential for seizing during installation or removal. The pure alumina silicate ceramic insulator offers high strength and supports efficient heat transfer, helping the spark plug maintain dependable performance across its intended operating range. A copper core further assists with heat removal for stable operation.
Triple seals help prevent combustion-gas leakage, while corrugated insulator ribs help reduce the risk of flashover. These design features support long-lasting service and reliable ignition. Verify the BR9HS model and NGK part number 4522 against the equipment manufacturer’s application guide before installation to confirm fitment. This plug is intended for engines specified for the NGK BR9HS configuration.
Features:
- Model: BR9HS
- Brand: NGK Spark Plugs
- Manufacturer Part Number: 4522
- Vendor Part Number: 4522
- Plating: Trivalent metal plating helps resist corrosion and seizing
- Insulator: Pure alumina silicate ceramic supports strength and heat transfer
- Sealing: Triple seals help prevent leakage
- Flashover Protection: Corrugated ribs help reduce flashover
- Core: Copper core assists with heat removal
- Fitment: Designed for engines and applications specified for the NGK BR9HS spark plug