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
Condition: New
Buy Now, Pay Later
As low as
$2
/ mo
Learn more
- – 4-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
20 left in stock
Arrives
Dec 16 – Dec 17
Recently Viewed
![Spigen Center Console Organizer Tray(Carbon Edition) Designed for Tesla Model 3/Y with Smooth Slide Technology 2024/2023/2022 [Not Compatible with Model 3 2024]](https://m.media-amazon.com/images/I/71rMs+TLI-L._AC_US500_.jpg)
Size: 1 PCS
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: 0.15 Pounds
Manufacturer: ecocstm
Package Dimensions : 6.65 x 3.5 x 0.98 inches; 2.4 ounces
Date First Available : August 6, 2024
Manufacturer : ecocstm
Best Sellers Rank: #7,214 in Automotive (See Top 100 in Automotive) #19 in Spark Plug & Ignition Tools
#19 in Spark Plug & Ignition Tools:
Customer Reviews: 4.5 4.5 out of 5 stars 181 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Dec 16 – Dec 17
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: 1 PCS
Spark tester; easy to use, and straightforward, adjust to see how strong the spark is, great during diagnostic procedure.
Reviewed in the United States on August 29, 2025 by K. Jolley
Size: 1 PCS
Works as advertised and the gap adjust-ability is great. I used it to test the gap ranges on used and new ignition coils to get a feel for the maximum gap the coil would cross on each plug wire. Very insightful. Would buy again and recommend.
Reviewed in the United States on November 13, 2025 by J. C.
Size: 1 PCS
Appears to be the same quality as other more known brands. Functions as intended and seems to be well built. Pretty good value and would recommend.
Reviewed in the United States on September 1, 2025 by Conscious Buyer
Size: 1 PCS
Great little tool for verifying spark
Reviewed in the United States on October 11, 2025 by Albert Egan
Size: 1 PCS
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 PCS
Works great, just as planned
Reviewed in the United States on October 18, 2025 by Amazon Customer
Size: 1 PCS
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.
...
show more
Reviewed in the United States on September 6, 2025 by Dave Zehner
Size: 1 PCS
Simple and sturdy, should last for a long time, works well.
Reviewed in the United States on September 11, 2025 by D. Dodge