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Ram-Pro Inline Spark Tester, Plug Engine Ignition 6-12 Volt Fool-Proof – Pick Up Coil/Armature Diagnostic Detector Tool for Automotive, Car, Lawnmower, Small & Big Internal/External Engines

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Availability: In Stock.
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Arrives Sunday, Sep 20
Order within 11 hours and 17 minutes
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Size: 1 Pack


Features

  • The Ram-Pro Engine Spark Tester Probe is a must have diagnostic tool for any engine with a spark plug, & can quickly and easily diagnose ignition/engine outboard motor issues or a fault in the fuel delivery system
  • HOW TO USE: Simply connect the tester between the spark plug and the plug wire, if spark is being sent, the tester will mirror the spark and light up - Find dirty spark plugs, defective points, bad cables or connections, etc.
  • DIMENSIONS: 6" boot/cable, 5" shaft/light housing; 2.2 oz. DESIGN: Nickel Plated Shaft, Double ended flexible tool offers a straight boot - Internal bulb lasts for years, but is replaceable through transparent housing
  • MUST HAVE: When engine won't start, gives instant answer to 'does it have spark?' - Saves time, frustration and money while also offering a safe secure way to identify spark
  • USE FOR: Essential Troubleshooting for All Internal & External Combustion Engines, cars, trucks, motorcycles, lawnmowers, chainsaws, trimmers, snow-blowers, generators etc. - A must have for any individual, professional mechanic garage and auto shop

Description

Ram-Pro’s Inline Spark Tester is a must-have diagnostic tool for all engines with a spark plug. With the help of this tester, you will be able to detect ignition/engine outboard motor issues or a fault in the fuel delivery system more easily and smoothly. It consists of a protection shield which stops the user from worrying about loose wires and any electrical shocks. If your ignition wire is intact then the indicator lights up giving a positive indication. The tester has a shaft made up of nickel along with a double-ended flexible tool that offers a straight boot to cover all applications. It has an internal tool that will last up to years which can also be replaced via transparent housing. It is specifically designed to keep the user safe and at adequate advantage. Ram-Pro’s inline tester is rust resistant which is durably designed for a long service life. It is an instant answer to 'does it have spark?' when your engine won’t start. The inline spark tester will save your time, money and avoid frustration as it offers the safest way to detect a spark. It takes roughly about 20 to 30 seconds in order to identify the problem. The tester snaps on tightly so it will not fall off when the engine starts making it a unique DIY approved tool. It saves time and money while also offering a safe, secure way to identify a spark. This tester can be used to troubleshoot all internal and external combustion engines found in cars, trucks, motorcycles, lawnmowers, chainsaws, trimmers, snow blowers, generators etc., making it a one-stop solution for all professional mechanic garage and auto shops. It is a universal fit for all 2- or 4-stroke, single or multi-cylinder gasoline engines. A great troubleshooting aid which varies brightness of the light indicating the quantity of the spark. It is suitable for a broad range of household, industrial and commercial uses. About Ram-Pro In-Line Spark Plug Engine Tester. Quickly and easily diagnoses ignition/engine issues. TO USE: with engine off, remove rubber boot from spark plug, & Simply connect the tester between the spark plug and the plug wire, if ignition spark is being sent to the cylinder, light in tester glows & mirrors the spark. Testers light up and/or buzz to indicate testing result. Brightness of the light indicates the quantity of the spark. The pulses should be bright and consistent. Make sure your wires have a good connection. If the connection is good and the pulse doesn't change. Suspect a bad ignition coil. TIP: If you're testing in bright lighting conditions and not getting the right result, try again in a less bright environment Another thing to try is to use the tester on another engine that you know to be good (under similar lighting conditions), and compare that flash to the one on your vehicle. Double ended tool offers a straight boot to cover all applications. Well-crafted and made with great protection shield so no loose wires or worry for any electrical shocks. Suitable for a broad range of household, industrial and commercial uses. Benefits: Universal fit for all 2- or 4-stroke, single or multi-cylinder gasoline engines Immediately identifies a problem with spark or fuel Takes about 30 seconds Essential for trouble shooting all internal combustion engines Replaceable bulb Rust-resistant Tester snaps on tightly so it will not fall off when engine starts Great troubleshooting aid Durably designed for a long service life Saves time and money while also offering a safe secure way to identify spark No more guessing about the spark of the engine - It takes all the guess work out of knowing if you’re getting power to your spark plug No more shocks from holding a wire to the block DIY Tool Approved!

Brand: RamPro


Power Source: Corded Electric


Style: Tool


Color: Black


Item Weight: 2.2 Ounces


Power Source: Corded Electric


Minimum Operating Voltage: 6 Volts


Compatible Devices: Internal Combustion Engines


Style Name: Tool


Color: Black


Item Weight: 2.2 Ounces


Brand Name: RamPro


Model: 2331


UPC: 815518023317


Manufacturer: MIX N MORE INC


Global Trade Identification Number: 17


Part Number: 2331


Unit Count: 1 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 20

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.

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Top Amazon Reviews


  • Essential Tool for Diagnosing Engine Ignition Issues
Size: 1 Pack
I recently used the Ram-Pro InLine Spark Tester to diagnose ignition problems in my car and lawnmower, and I’m very impressed with its performance. This 6-12 Volt spark tester is a reliable tool for both small and large engines, including automotive, lawnmowers, and other internal or external engines. The fool-proof design makes it easy to use, even for those who are not mechanically inclined. The tester quickly and accurately checks for spark by connecting directly to the spark plug or ignition coil. The clear and straightforward indicator helps in determining whether there’s a spark or if further investigation is needed. One of the standout features is its versatility; it works with a wide range of voltages and engine types. The pick-up coil/armature diagnostic detector tool has been very helpful in identifying ignition system issues and ensuring that my engines are firing correctly. The build quality is solid, and the tester feels durable and well-made. It’s a handy tool to have in your toolbox for troubleshooting ignition problems and performing regular maintenance. Overall, the Ram-Pro InLine Spark Tester is an excellent choice for anyone needing a reliable and easy-to-use spark tester. It provides accurate diagnostics and is a great value for its price. Highly recommended for both DIY mechanics and professional technicians! ... show more
Reviewed in the United States on August 23, 2024 by Morris G

  • Good tool
Size: 1 Pack
Lost my old one this one works perfect
Reviewed in the United States on June 26, 2026 by GREGORY F. MCDOWELL

  • Works but don't expect your mower to be running when doing the test with this tester just because it says in-line tester.
Size: 1 Pack
What I received was a carded brand called CAL-HAWK 6-12 Volt In-line ignition/spark tester. Made in China product. Looks like what is pictured on the Amazon site. Basically when you put it inline with your existing spark plug on say your lawn mower, it will not turn over your engine while you have this on, so don't expect your lawn mower to turn on running and that this would be some sort of glowing blinking, what it will do is that it will cause the light bulb in the unit glow when you pull on the pull cord each time. Its a somewhat weak glow but noticeable in the evening or in the dark. So you need to make sure you pull and tape down the mower break lever and pull your cord where you can also see the glow of the bulb, unless you have someone else pull the pull cord and you are standing close by watching this tester. ... show more
Reviewed in the United States on July 27, 2017 by Reversemidasman

  • Good and work well
Size: 1 Pack
Good and work well
Reviewed in the United States on June 4, 2026 by Shawn

  • Great item every engine home mechanic should have!
Size: 1 Pack
This item helped me diagnose a rough running V-twin lawn tractor engine. I had already replaced the fuel system components and the spark plugs. I neighbor backyard mechanic suggested I check the spark plugs for spark by removing them and grounding them and examining the spark. That sounded undesirable to me, so I found this item. It is simple to use, just install it inline between the spark plug wire and the spark plug. It clearly showed me which cylinder was misfiring, and an easy coil change fixed the issue. It is a great item every engine home mechanic should have! The quality is very good and the price under $10 makes this a bargain. Highly recommended! ... show more
Reviewed in the United States on December 4, 2023 by Zig

  • works
Size: 1 Pack
I works. It shows a spark. I am not sure if the color of a good spark should be bright orange or blue?
Reviewed in the United States on June 11, 2026 by e.chow

  • It’s better than what people say
Size: 1 Pack
At first pull of the cord, I could not see a light, I shut the garage door and then realized what I was looking for. It was lighting up., once you know what you’re looking for you don’t need darkness. You can do it in broad daylight ,, the cheap thing works fantastic.
Reviewed in the United States on April 15, 2026 by Donald M.

  • Limited Applications
Size: 1 Pack
This tool only works on spark plugs that have the" nipple" if the spark plug just has the threaded end like many small engine plugs, do, you cannot use it on that type. It seems to me a huge oversight.
Reviewed in the United States on September 10, 2025 by Paul Bourgeois

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