2 Pieces of Spark Plug Tester Inline Ignition Coil Tester Tool

Quick Ignition System Diagnosis

This spark plug tester helps quickly check ignition system performance and identify common engine issues such as loose spark plug connections, damaged wiring, weak ignition signals and faulty spark plug connections. It is a practical diagnostic tool for any engine equipped with spark plugs.

Easy Testing Operation

Simply connect the black tester housing to the spark plug and attach the metal end to the spark plug wire. Start the engine and observe the indicator light. A flashing light indicates that the ignition system is working properly, helping you identify possible problems with spark plugs, wiring or connections.

Durable and Reliable Construction

Made with a plated metal probe, durable plastic housing, rubber protective sleeve and flexible cable, this spark tester is designed for stable performance and long-term use. The corrosion-resistant materials help maintain reliable operation during repeated testing.

Wide Engine Compatibility

Suitable for a variety of spark plug-equipped engines, including cars, trucks, motorcycles, lawnmowers, chainsaws, snow blowers, generators and other internal or external combustion engines. An essential tool for vehicle owners, mechanics and DIY maintenance.

Compact and Portable Design

The lightweight design makes it easy to carry and store in a toolbox, garage or vehicle. It allows quick ignition checks whenever engine troubleshooting is needed.

Important Notes

Always turn off the engine before connecting or removing the tester. Do not touch the metal probe or ignition components while the engine is running, as high voltage may be present. Use only on spark plug ignition systems and check that the tester is properly connected before testing. Keep the tool dry and stop using it if any part is damaged.

What's in the box
2 x Pieces of Spark Plug Tester Set