Spark Plug Tester, Adjustable Ignition Coil Tester System, Coil Pack Tester, Spark Testers Tool, Spark Checker, Autos Diagnostic Test Tool for Automotive, Small Engines, Lawnmowers
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Availability:
In Stock.
Arrives
Monday, Mar 9
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Size: 1 PC
Features
- Pitch Adjustment Function: The spark plugs tester is equipped with a pitch adjustment valve and a round knob, which can adjust the observation pitch of the spark plugs according to the needs of different car models, and at the same time can effectively avoid the occurrence of misfire and burnt ignition coils
- Quality Materials: The use of metal connectors to ensure durability and excellent electrical conductivity, to ensure that the current transmission between the inline spark plug tester and the spark plug is stable and efficient, to improve the accuracy of the test
- High Visibility Design: The spark tester for small engine's viewing area scale values are in white font, making it easy to read the scale clearly when measuring gap values from 0 to 40k, even in bright light conditions. This high visibility design enhances ease of operation and accuracy
- How to Use: This ignition coil tester tool is equipped with rubber-coated ground wire, grounding alligator clips and springs for safe and stable introduction of high voltage current. To use, attach the alligator clip to the engine, connect the other end to the spark plug wire and check the spark length through the small window. The longer the spark gap, the stronger the coil
- Widely Applicable: The spark tester has an overall length of 4.5 inches, a cable length of 19.7 inches and a diameter of 0.92 inches. Designed to ensure compatibility with a wide range of automotive ignition systems, it is an ideal tool for automotive maintenance, small engine inspections, ignition coil testing, and lawn mower maintenance
Brand: ecocstm
Item Weight: 2.4 ounces
Manufacturer: ecocstm
Package Dimensions: 6.65 x 3.5 x 0.98 inches
Item Weight: 2.4 ounces
Manufacturer: ecocstm
Date First Available: August 6, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Mar 9
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 1 PC
Love old school tools
Reviewed in the United States on December 28, 2025 by Nitro
Size: 1 PC
Works good to test spark. Was able to track down my problem to incorrect firing order from someone else’s attempted repair.
Reviewed in the United States on January 3, 2026 by Kenneth Nickell
Size: 1 PC
I liked the option of adjusting the gap to check the strength of the spark, and the alligator clamp to get a good ground. The price was right, and the quality was good. My only complaint is that the head that goes into the ignition wire doesn't fit securely. It is removable, and it would have been nice if there were different heads to fit different applications. I will remove some from old spark plugs I have around the shop and see if they will screw onto the tester.
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Reviewed in the United States on September 6, 2025 by Dave Zehner
Size: 1 PC
Spark Plug tester review - This helped me confirm that i was'nt getting any spark to the plugs. Allowed me to isolate the problem as ignition. Well made product. A must have tool.
Reviewed in the United States on September 25, 2025 by J parisi
Size: 1 PC
Worked exactly as advertised.
Reviewed in the United States on February 12, 2026 by Rebecca Twing
Size: 1 PC
Good quality and price
Reviewed in the United States on February 26, 2026 by Amazon Customer
Size: 1 PC
Works as it should
Reviewed in the United States on February 3, 2026 by Norm
Size: 1 PC
Great way to see if that spark plug is fowling. Easy to see and use.
Reviewed in the United States on December 25, 2025 by Terry Richardson