ANCEL SP02 Spark Plug Tester Automotive Engine Ignition Coil Tester Dual Holes 0 to 6000RPM Adjustable Working Frequency Car Spark Plug Gap Tool
Condition: New
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Availability:
In Stock.
Arrives
Friday, Feb 27
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Features
- Test Two Spark Plugs at Once Faster, Smarter DiagnosisWhy test one at a time? ANCEL SP02 dual-hole spark plug tester lets you compare two plugs side-by-sideinstantly revealing weak sparks or misfires. Spot underperforming plugs in seconds and swap them out before they hurt engine performance. Whether you're a seasoned mechanic or a weekend DIYer, this tool helps you tune faster, fix smarter, and keep every cylinder firing strong
- Built to LastYour Trusted On-the-Go CompanionSlow starts, weak acceleration, or high fuel use? Faulty spark plugs could be the cause. ANCEL SP02 spark plug tester is heat-resistant, impact-proof, and built for tough jobs. Lightweight and portable, it's perfect for quick diagnosticswhether you're in the garage, at the track, or on the go
- Fast Setup, Real ResultsEngine Testing Made EasyNo complicated steps, just plug in your spark plug, twist the knob, and you're all set. The adjustable speed dial (06000 RPM) lets you fine-tune the simulation to match your car's engine performance. Pro tip: 2000 RPM is already peak sparkso no need to crank it up further
- Fits 99% of Gasoline Engines One Tool, Endless OptionsFrom cars to motorcycles, lawnmowers to boatsthis spark plug tester works on nearly any 12V gasoline engine. SP02 is suitable for testing spark plugs with an insulator diameter less than 12.2 mm, a length not less than 33 mm, and not exceeding 43 mm. Just plug and diagnosefast, easy, accurate
- Test Safely, Every TimeWe've Got You CoveredBuilt with your safety in mind, this spark plug and ignition coil tester features a transparent protective cover that keeps you shielded from accidental sparks while allowing full visibility of test results. Work with confidence, knowing you're protectedevery time you test
- Note: This spark plug tester is not compatible with very short spark plugs. Due to the plug length, the contacts may not reach the bottom of the testing port. If you're unsure about compatibility, feel free to contact our support team at here to help
Brand: ANCEL
Color: red
Item Weight: 12.48 Ounces
Item dimensions L x W x H: 3.55 x 4.44 x 5.7 inches
Min. Operating Voltage: 12 Volts (DC)
Product Dimensions : 3.55 x 4.44 x 5.7 inches; 12.48 ounces
Item model number : ANCEL SP02
Date First Available : July 18, 2024
Manufacturer : ANCEL
Best Sellers Rank: #9,540 in Automotive (See Top 100 in Automotive) #21 in Spark Plug & Ignition Tools
#21 in Spark Plug & Ignition Tools:
Customer Reviews: 4.6 4.6 out of 5 stars (386)
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Feb 27
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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Top Amazon Reviews
So let me start off by saying I thought this would be a tool I don’t use regularly but I was WRONG. As a mechanic I’ve used this pretty regularly the past few weeks and it’s helped diagnose some cracked plugs that couldn’t be seen by normal means. The quality is not bad at all for the price. And it’s become and all around great piece to add to my toolbox
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Reviewed in the United States on October 31, 2025 by Corey
This bad boy is pretty neat. I had a pair of OEM ford mustang spark plugs. They were the original spark plugs that were on the car since i bought it brand new. I tested them alongside a set that I bought here at amazon with a full set of coils. The new spark plugs were performing noticeably better than the OEM spark plugs. This is a very useful tool hands down. They remove doubt when you have second thoughts of the spark plugs you are buying. The best part is they don't break the bank.
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Reviewed in the United States on November 20, 2025 by jesus tamez
Im surprised. This thing works great. I didnt think there was such a tool. This really helps find those good spark plugs in my stock. Never again throw out those mystery plugs without checking them. Great value for the money. Easy to use, put the plug in and turn it on.
Reviewed in the United States on August 7, 2025 by Spudhut
The contacts inside broke after the first use. One of them is still going, I contacted the company and they immediately replaced it. It's nice it works well and you can see if your plug is good.
Reviewed in the United States on November 11, 2025 by Honest John
A great little item to have in your DIY shop for testing plugs. First test I did with my Ancel SP02 was test the plugs on my old ONAN P220 mower engine to get it ready for this year's mowing. With the 2 test holes, it was perfect as I could watch both plugs spark same time. Noticed one plug was not as powerful as other so stopped test to see why. Did air gap measurement and found that weak plug's air gap was off. Did an adjustment and re-tested and ran the power up through it's paces. The higher the so-called RPM of tester, the noise changed in pitch to a high whine which I didn't expect. A good plug will spark blue to blue-white. If you see yellow, arcing out the glass insulator that you might not even notice from a crack, or plug has what is a dead spot (no spark) at certain RPM's of the tester it is time to replace that plug(s). Also, test all new plugs before installation. You'd be surprised to possibly find a bad plug from all the jostling around during shipment. Don't know why I hadn't gotten one of these years ago. They're also kinda fun to watch during the spark testing. I have a couple In-Line Spark Testers that work well, but this is better in that you can actually see the spark plug and what it's doing under a high RPM test load that a mower's engine won't get to and how healthy that spark is through the ranges the tester gives.
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Reviewed in the United States on April 26, 2025 by Delbert
Wonderful for the price, it works great, so easy to use. Fits most but not all sparkplugs. So keep that in mind. Comes in hand when you need to test a plug instead of guessing and buying new plugs for no reason.
Reviewed in the United States on July 29, 2025 by Ryan
Every shop should have one!
Reviewed in the United States on November 12, 2025 by David
I love this. It works exceptionally well.
Reviewed in the United States on October 5, 2025 by Enloe West