NOTE: Plugs are sold in quantities of (4), but billed individually. When ordering please change quantity from (1) to (4).

NGK 6431 Standard Spark Plugs BU8H

From professional racers with extremely modified engines to the weekend warrior, all levels of performance enthusiasts’ count on the advanced technology built into NGK Spark Plugs. These plugs have a solid copper core designed for greater spark and heat transfer. In addition, the corrugated ribs reducing flashover along with trivalent metal plating for anti-seizing and anti-corrosion properties make this the spark plug of choice.

Features:

• Electrode materials - Many use precious metals such as platinum or gold/palladium for greater durability and lower voltage requirements.
• Electrode configurations - Fine-wire center electrodes provide better sparking and enhanced ignitability.
• Fine-wire ground electrodes further improve the ignitability of the plug.
• Insulator configurations - Special configurations are used for the insulator noses to improve throttle response.

Stock Number: 6431

Center Electrode Core Material: Copper Core

Center Electrode Tip Material: Nickel

Gap Size: 0.016 in.

Ground Configuration: Surface Discharge

Ground Electrode Core Material: Nickel Core

Ground Electrode Tip Design: Surface Discharge Type

Hex Size: 13/16”

Manufacturer Heat Range: 8

Resistance: Zero ohms

Seat Type: Gasket

Thread Diameter: 0.551 in.