NGK IMR9B-9H Laser Iridium Spark Plug – Fine Iridium Tip for Maximum Durability

Precision Ignition. Laser-Fine Iridium Performance.

The NGK IMR9B-9H Laser Iridium Spark Plug delivers a consistently stable spark, outstanding acceleration, and exceptional fuel efficiency — all backed by NGK’s laser-welded fine iridium tip technology. Engineered for high-performance powersports applications, it reduces voltage requirements and extends ignition system life well beyond conventional plugs.

Key Features

• Fine iridium tip — laser-welded for high durability and a consistently stable spark
• Ultra-small-diameter center electrode — reduces voltage requirement and extends ignition system life
• Trivalent metal plating — superior anti-corrosion and anti-seizing for easy removal
• Enhanced metal shell plating — additional anti-corrosion protection
• Outstanding acceleration, improved fuel efficiency, and long service life

Specifications

• Part Number: IMR9B-9H
• Series: Laser Iridium
• Brand: NGK Spark Plugs
• SKU: 4888
• Heat Range: 9
• Electrode Material: Iridium
• Gap: 0.9mm