NGK DILKAR7S8-97939 Iridium Spark Plug 97939 One-Piece, Double Precious Metal Type

【NGK DILKAR7S8-97939 Iridium Plug 97939 Integrated Double Precious Metal Type】
■Product Description
High-performance plugs that improve both fuel efficiency and acceleration
Iridium IX plugs are high-performance plugs that offer faster flame propagation compared to standard plugs and feature a thermo-edge at the tip of the insulator to improve plug fouling resistance.

Specifications
Iridium IX plugs offer better ignitability and excellent fuel efficiency compared to standard plugs, leading to improved fuel economy!
Exceptional 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 have faster flame propagation and less energy loss (quenching effect) compared to standard plugs.
Only NGK Spark Plugs feature a thermo-edge!
High performance lasts longer because it resists fouling!
The thermo-edge, where micro-discharges occur, is designed at the tip of the insulator. It burns off carbon deposits on the insulator from prolonged low-speed driving with micro-discharges, maintaining high plug ignition performance at all times.
The fine-diameter iridium alloy center electrode improves electric field strength and generates a stronger spark at a lower voltage.
Since the spark is concentrated at the tip of the center electrode, stable combustion is consistently achieved, leading to improved fuel efficiency.
Type: Double Precious Metal Type
Thread Diameter: φ12.0mm
Thread Length: 26.5mm
Hex Size: 14.0mm

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