NGK Laser Iridium Spark Plug IFR8H-11 IFR8H11 #5068

NGK Laser Iridium Spark Plug IFR8H‑11

This NGK Laser Iridium spark plug (IFR8H‑11) provides efficient ignition and long service life for engines requiring the IFR8H‑11 design, with fine‑wire center electrode for improved performance.

Overview

This NGK Laser Iridium spark plug (IFR8H‑11, number 5068) delivers a hot, consistent spark for smooth idle and throttle response. It is designed for engines that originally specified the IFR8H‑11 plug, offering extended durability over copper plugs. This iridium spark plug reduces misfires and improves fuel efficiency.

Built For Performance

• Laser‑welded iridium center electrode provides long service life
• Trivalent metal plating resists rust and reduces torque required
• Fine‑wire design improves ignitability and cold starts
• Ribbed insulator prevents flashover
• Pre‑gapped for easy installation

Fits These Machines

• for engines requiring NGK IFR8H‑11 (consult OEM application guide)

On‑The‑Job Use

• High‑performance automotive and motorcycle engines
• Replacement of worn spark plugs for improved fuel economy
• Cold‑weather starting aid for carbureted engines
• Tuning applications requiring a specific heat range

Specs At A Glance

Good To Know

Q: Can this spark plug be used in place of a copper plug of the same heat range?A: Yes, it is a direct replacement and offers longer life, but confirm gap and thread reach match the original plug.

Q: Does this plug come pre‑gapped?A: It is pre‑gapped to 0.044 in (1.1 mm); however, final gap should be verified with a gapping tool before installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.