NGK Resistor Spark Plug Cap VB05F black (8032)

The NGK VB05F is a resistor spark plug cap in black, identified by part number 8032. Its resistor element is pressed between the plug terminal and the high-tension wire connection.

The construction includes ceramic materials, a plug connector made of phenolic resin and rubber material. The ceramic materials resist deterioration and have small resistance variation under overload. The resistor element is designed to prevent interior flashover and maintain steady resistance. Heat-press insertion contributes to vibration resistance, while rubber liners at both ends help prevent moisture from causing electrical leakage.

NGK resistor caps are designed for noise suppression across frequencies without adversely affecting engine performance. The source also notes that some engines require a combination of resistor caps and R-type resistor spark plugs to satisfy ministry tests.