Parts Unlimited Flashing Spark Plug Cap

The Parts Unlimited Flashing Spark Plug Cap is a motorcycle spark plug cap (also called a spark plug boot or plug cover). It gives your ignition a custom look. The cap has a transparent or tinted section that flashes each time the plug fires. The effect is most visible at night.

Key Features:

• Flashing design: The transparent or tinted section lights up with every spark plug firing.
• Custom styling: Popular on custom street machines for added visual appeal.
• Multiple options: The line comes in different connector angles and colors, so you can match your engine layout and style.
• Trusted brand: Parts Unlimited is a well-known supplier of powersports replacement and accessory parts.

Choose the variant that suits your build and routing needs. Each one adds a flashing accent to your ignition.