Performance Tool Inline Ignition Spark Tester — 8.5in. Length, Tests Spark Plug Voltage & Ignition Health, Model# PRTW86554

This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.

Click or Tap image to Zoom
- Clear Visual Feedback – Flashes a visible mirror image of ignition spark while the engine is running
- Quick Diagnostic Tool – Instantly checks spark plug voltage, points, and ignition cable condition
- Easy In-Line Connection – Plugs directly between spark plug and wire for simple, real-time testing
- Bright Light Indicator – Stronger spark voltage produces a brighter flash, helping identify weak ignition
- Durable Construction – 5 in. spark plug connection and 8-1/2 in. overall length for compatibility and reach
Prop 65 Warning: See Details
See full description
Recently Viewed Items
This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.



