Our Best Picks:
Best Spark Tester Reviews:
SaleBestseller No. 1 
Lisle 20610 Inline Spark Tester
- Gives a Visual Check of the Ignition System.
- Quickly diagnose problems with all ignition systems. Connect the tool between the spark plug and the plug wire.
- The tool is double-ended to offer a straight boot and a 90boot on one tool. With the engine running, the tool flashes a mirror image of ignition spark.
- Patent: 6,714,015
Bestseller No. 2 
Ram-Pro Inline Spark Tester, Plug Engine Ignition Tester, 6-12 Volt Fool-Proof – Pick Up Coil/Armature Diagnostic Detector Tool – for Automotive, Car, Lawnmower, Small & Big Internal/External Engines
- 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
Bestseller No. 3 
Inline Spark Plug Tester, Straight Boot Engine Ignition Tester Light Easy to Use, Small Armature Diagnostic Detector Tool for Automotive, Car, Lawnmower, Motorcycles, Internal External Engine
- 【Wide Application】: The inline spark plug tester is a must have diagnostic tool for any engine with a spark plug, it fit for all internal and external combustion engines, cars, trucks, motorcycles, lawnmowers, chainsaws, trimmers, snow-blowers, generators engines etc. Spark plug tester apply to any household, business, mechanic, industrial and commercial spark plug use in engine.
- 【Premium Materials】: The probe of this spark tester is made of high quality plated shaft, the optical housing is made of environmental friendly acetate plastic, and rubber straight jacket and cable. High quality materials are resistant to rust and corrosion, even in high and low temperature environments.
- 【Easy to Use】: Easily determine which cylinder is causing issues with this spark plug test light; Simply connect the spark detector spark plug tool between the spark plug and the plug wire then start the engine; If sparks are being sent, the in line spark tester will mirror the spark by lighting up; If checking a no start condition, have a friend crank the engine so you can watch for indications of a spark.
- 【Light Indication】: The spark plug engine ignition test kit is equipped with a high intensity neon bulb inside, which makes it easy to know if the ignition wires are intact by flashing. By light indicator shows of spark plug engine ignition tester to determine which cylinder is causing the issue and track down the exact cause.
- 【Excellent Customer Service】: We are dedicated to researching in-car products to improve driving safety and comfort, bringing you a pleasant driving experience. Should you have any questions, please do not hesitate to let us know. We are ready to help you!
SaleBestseller No. 4 
Tool Aid 23970 in-Line Spark Checker Kit for Recessed Plug
- Troubleshoot virtually all domestic and imported cars, SUVs and trucks
- Flashing bulb indicates ignition or fuel delivery problems
- Frequency and intensity of flash indicates whether there is an ignition system problem or fault in the fuel delivery system
- Safety orange color for easy visibility
Bestseller No. 5 
【The Best Deal】OriGlam Spark Plug Tester, Adjustable Ignition System Coil Tester, Coil-on Plug Ignition Spark Circuit Tester, Autos Diagnostic Test Tool
- √ Professional Design - According to spark color and flash over distance to determine the quality of the coil.
- √ Great Value - Can intuitively convenient to understand the operation of the ignition coil.
- √ Better And Faster - It is the quickest way to test for no-start conditions.
- √ Easy To Read - High visibility white lettering makes it easy to read the gap measurement.
- √ Perfect Selection - Screw assembly adjusts spark gap quickly and easily. Avoid fire, the ignition coil burned out and so on.
Bestseller No. 6 
Inline Spark Tester Engine Ignition - Small Engine Plug Ignition Straight Boot Tester Light, Spark Plug Coil Diagnostic Detector Tool for Car/ Lawn Mower/ Automotive/ Vehicles Engines (2 Pcs)
- 🔥Diagnose Misfire Trouble Swiftly ➤ Using AUSTIN inline spark plug tester could help you diagnose ignition and engine problems and defects quickly and easily. A small spark plug tester is the most direct and useful tool to detect problems such as spark plug connections, contact points, cable damage, etc.
- 💡Indicator light description ➤ The spark plug light checker could help the tester to make further adjustment plans through the indicator light. An Intense bright white light indicates a healthy spark, jumping colors indicate weak contact current, and no light indicates no current passing. Further, help you identify which cylinder is causing the problem and track down the exact cause.
- 👍Convenient Operation ➤ 1. Shut off the engine and remove the spark plug wire; 2. Connect the black connector to the spark plug; 3. Insert the metal end of the tester into the spark plug wire; 4. Start the engine and observe the indicator light; The time required for all internal combustion engine troubleshooting is approximately 20 seconds.
- 💎Fabulous Materials ➤ The ignition coil spark plug tester is made from high-quality high-temperature-resistant wire, the transparent shell is designed for clear display, and the inner bulb can be used for many years. Anti-rust and corrosion-resistant, easy to store and prolong service life. Dimensions: 3" (7.6cm) Nickel Plated Shaft; 7" (17.8cm) Rubber Straight Boot and Cable; 1" (2.5cm) Bulb. It's portable that apply for checking hard-to-reach areas for sparks.
- 💪Wide Applications ➤ ASUTIN automotive spark tester is suitable for all internal combustion engines, cars, trucks, motorcycles, lawn mowers, chainsaws, trimmers, engines, etc. The coil on plug tester is suitable for any personal, domestic, commercial, mechanical, industrial and other engine spark plug use.
SaleBestseller No. 7 
Inline Spark Plug Tester Engine Ignition Tester Straight Boot Ignition Tester Light Lawnmower Engine Checker Armature Diagnostic Detector for Automotive Car Lawnmower Internal External Engine (1)
- Diagnose misfire issues: ignition misfires can cause your engine to stumble or lose power, spark plug ignition tester can quickly and easily diagnose ignition and engine issues and defects, which is a practical diagnostic tool for any engine with a spark plug, diagnose ignition/ engine outboard motor issues or a fault in the fuel delivery system, troubleshoot spark plug connections, contact points, bad cables and more
- Materials and dimension: the spark tester probe is made of quality plated shaft, rust and corrosion resistant, double ended flexible tool offers a straight boot, the internal bulb lasts for years, this tool measures measures approx. 11.3 inches/ 28.8 cm in length, suitable dimension to check for spark in even the hard to reach areas
- Light indication: spark plug light checker indicates inconsistencies and sparks in a way that keeps you safe from electric currents; Intense bright white light indicates a healthy spark while jumping and dim color indicates a weak coil or plug; Remove the guesswork by using this lawn mower spark plug tester and coil pack tester, disassemble spark plug tester tool to access and replace the internal bulb
- Simple and convenient operation: it takes about 30 seconds essential for trouble shooting all internal combustion engines, you just need to 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, to find dirty spark plugs, defective points, bad cables or connections, etc.
- Wide range of application: it fit for all 2- or 4-stroke, the essential troubleshooting for all internal and external combustion engines, cars, trucks, motorcycles, lawnmowers, chainsaws, trimmers, snow-blowers and so on, this automotive spark tester tool will meet your a plenty of applications
SaleBestseller No. 8 
Lisle 20700 Coil-on Plug Spark Tester White
- Package Dimensions: 1.27 cms (L) x 1.524 cms (W) x 1.27 cms (H)
- Product Type: Spark Plug
- Package Quantity: 1
- Country Of Origin: Taiwan
SaleBestseller No. 9 
Stens 750-018 Ignition Tester, Designed Exclusively for Small Engine Repair, 1.5 Length, 3.7 Height
- Specs: Ignition tester
- Designed exclusively for small engine repair
- Stens one-year warranty ensures reliability and performance for every part
- Stens branded parts are trusted by professional dealers to perform OEM quality repairs. The Stens name is featured on all Genuine Stens product packaging.
Bestseller No. 10 
Echo PET4000EC Spark Tester
- Genuine OEM Echo Part
- Replaces: 99051130023, 89780079930, 89780079931
- Oppama PET-4000 Adjustable Gap Inline Spark Tester
- Not only checks for spark, but has a fine adjustment to test for spark at the correct firing voltages. Each 1mm graduation on the adjustable gap represents approximately 2,000 volts in firing voltage. Can check for spark between 2KV and 25KV with ease. Checks spark while running, or not running.
Bestseller No. 11 
Sedovnou 2PCS Inline Spark Plug Tester, Light Lawnmower Engine Checker, 6-12 Volt Pick Up Coil/Armature Diagnostic Detector Tool for Automotive, Car, Lawnmower, Small & Big Internal/External Engines
- USEFUL DIAGNOSTIC TOOLS: Use Sedovnou spark plug ignition tester for small engines and vehicles to quickly and easily diagnose ignition/engine outboard motor issues or a fault in the fuel delivery system.
- EASY TO USE: Simply connect the spark detector spark plug tool between the spark plug and the plug wire then start the engine; If sparks are being sent, the in line spark tester will mirror the spark by lighting up; If checking a no start condition, have a friend crank the engine so you can watch for indications of a spark.
- SUPERIOR MATERIAL: Rubber sheath, high-quality high-temperature-resistant wire, environmentally friendly acetate fiber plastic, work in high and low-temperature environments have no effect.
- LIGHT INDICATION: Spark plug light spark checker indicates inconsistencies and sparks in a way that keeps you safe from electric currents; Intense bright white light indicates a healthy spark while jumping and dim color indicates a weak coil or plug.
- USE FOR: It can be applied all Internal & External Combustion Engines, cars, trucks, motorcycles, lawnmowers, chainsaws, trimmers, snow-blowers, generators etc.
Bestseller No. 12 
Tool Aid 36350 in-Line Spark Checker Kit
- Product Type:Auto Accessory
- Item Package Dimension:5.334 cm L X 23.114 cm W X 30.48 cm H
- Item Package Weight:0.862 kg
- Country Of Origin: China
Bestseller No. 13 
OEMTOOLS 25069 Adjustable Ignition Spark Tester, Spark Plug Tester for Small Engines and Large Engines, Spark Load Tester, Spark Plug and Ignition Tools
- Spark of Genius: The engine spark tester lets you know right away if your spark plug is producing electricity; Get feedback on the consistency and strength of the spark
- Fits Like a Glove: Adjust your ignition spark tester as needed; Use the threaded adjustable rod that connects to the grounding clamp
- Keep Things Clear: An easy to read voltage gauge inside the tester lets you know if your spark plugs are strong enough to keep running; Always have up to date information about your spark plugs
- Multipurpose Power Tester: Use the spark plug tester for whatever you need; Find the misfiring or inactive spark plug so you can repair things quickly and with relative ease
- Product Details: Adjustable ignition spark tester checks the strength of electricity generated by ignition spark plugs; Adjusts to check systems up to forty thousand volts
Bestseller No. 14 
Cal-Van Tools 64 High Energy Ignition Tester
- Attach spark plug wire to tester and clip tester to engine
- Crank the engine and check for the presence of spark
- Sealed chamber reduces risk of fire around high pressure fuel injection systems or marine use
SaleBestseller No. 15 
Oregon 42-031 Spark Tester, Black
- Genuine Oregon Part
- Spark Tester
- Allows Visual Inspection of Ignition Output
- Use Between Coil Wire and Spark Plug
- Power Source Type: Gas Powered
Last update on 2023-06-06 / Affiliate links / Images from Amazon Product Advertising API