NGK ILZFR5B-4281 Iridium Spark Plug 4281 One-piece, Double Precious Metal Type

【NGK ILZFR5B-4281 Iridium Plug 4281 Integral Type, Double Precious Metal Type】
■Product Description
High-performance plug that improves both fuel efficiency and acceleration
Iridium IX plugs are high-performance plugs that achieve faster flame propagation compared to standard plugs and feature a thermo-edge on the insulator tip to improve resistance to fouling.

Specifications
Iridium IX plugs have better ignitability than standard plugs, leading to improved fuel efficiency due to their exceptional combustion efficiency!
Excellent ignitability with a fine-wire center electrode!
NGK Spark Plugs was the first in the world to adopt an iridium alloy!
Iridium IX plugs are high-performance plugs that offer faster flame propagation and less energy loss (quenching effect) compared to standard plugs.
Thermo-edge is exclusive to NGK Spark Plugs!
Performance lasts longer because it resists fouling!
The insulator tip is designed with a thermo-edge that creates micro-discharges. This micro-discharge burns off carbon deposits that accumulate on the insulator during prolonged low-speed driving, consistently maintaining the plug's high ignition performance.
The fine-diameter iridium alloy center electrode improves electric field strength, generating a stronger spark at a lower voltage.
Since the spark is concentrated at the tip of the center electrode, stable combustion is always achieved, leading to improved fuel efficiency.
Type: Double Precious Metal Type
Thread Diameter φ14.0mm
Thread Length 26.5mm
Hexagon Size Hex 16.0mm

■Notes on Images
*Images are for illustration purposes only. They may include products with different sizes or colors. Product design and specifications are subject to change without notice. Thank you for your understanding.