The NGK Spark Plugs Iridium IX Spark Plug BPR6HIX is engineered to provide reliable ignition, improved performance, and extended service life for compatible gasoline engines. Manufactured by NGK Spark Plugs, this iridium spark plug uses a fine-wire center electrode that requires less voltage to produce a strong spark, helping support consistent starting, smooth engine operation, and efficient combustion.
Its iridium electrode is approximately 25% smaller than a platinum electrode and about one-quarter the size of a conventional nickel electrode. This ultra-small diameter helps concentrate the spark for dependable ignition while reducing the demand placed on the ignition system. The durable design is well suited for drivers and technicians seeking a high-quality replacement spark plug for compatible automotive, powersports, lawn and garden, and small-engine applications.
NGK Spark Plugs Part Number 4085 and vendor part number BPR6HIX identify this Iridium IX model for proper replacement selection. Confirm the engine manufacturer’s recommended plug specifications and fitment before installation, including heat range, reach, thread configuration, and firing-end design. The updated metal shell plating provides enhanced resistance to corrosion, supporting dependable performance in demanding operating environments. Always install and gap the plug according to the applicable manufacturer service instructions.
Features:
- Iridium IX technology: Delivers reliable ignition and long-lasting performance for compatible gasoline engines
- Fine-wire iridium electrode: Requires less voltage and helps extend ignition system life
- Reduced electrode diameter: Concentrates the spark to support consistent starting and efficient combustion
- Corrosion-resistant metal shell plating: Helps protect the spark plug in demanding environments
- Fitment: Designed for compatible applications requiring the NGK Spark Plugs BPR6HIX Iridium IX spark plug
- Brand and part numbers: NGK Spark Plugs Part Number 4085; vendor part number BPR6HIX