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⚡ Diagnose your ignition like a pro—never miss a spark again!
The Lisle 20580 InLine Spark Tester is a premium, hand-powered diagnostic tool designed for all ignition systems. Featuring a dual-ended wire with straight and 90-degree boots plus a 7-inch extension for hard-to-reach coil-on-plug wires, it provides instant visual feedback of ignition sparks. Highly durable with a replaceable bulb and backed by a limited lifetime warranty, it’s a top-rated choice for professionals and enthusiasts seeking reliable, long-term performance.
| ASIN | B09NMHFGXD |
| Best Sellers Rank | #2,959 in Automotive ( See Top 100 in Automotive ) #10 in Spark Plug & Ignition Tools |
| Brand Name | Lisle |
| Color | for all Ignition Systems |
| Customer Reviews | 4.7 4.7 out of 5 stars (6,777) |
| Global Trade Identification Number | 00083045205807 |
| Included Components | tster and wires |
| Item Dimensions | 7 x 14 x 2 inches |
| Item Type Name | Tester |
| Manufacturer | Lisle |
| Model | 20580 |
| Power Source | Hand Powered |
| Style Name | InLine Spark Tester w/ Coil On Plug Wire |
| UPC | 083045205807 |
| Unit Count | 1.0 Count |
| Warranty Description | Limited Lifetime |
A**.
This is a solid, functional tool designed for long term use that outshines cheaper versions
Bottom line up front, if you're considering buying an inline spark (plug) tester, I highly recommend buying the Lisle version. Sure, you'll spend a bit more on it. For me, it was a "one time use" purchase however this was my *second* purchase because I bought another much cheaper brand the was broken upon arrival. In short, I didn't save any money buying the more affordable version. This Lisle tool is as all others have said, a very solid product with a bulb you can actual find and replace. It is well made, durable and will last for many years of use I'm sure.
J**J
Great item
Good quality, easy to work with, works great, bright light, like the longer boot for coil packs. Struggled with the shorter one in the beginning. I have the dreaded 5.4l 3 valve v8 F-150 and sparkplugs were just to start with....
S**R
Why did I wait so long to buy one of these?
This device saves so much time trying to determine if a small engine has spark. It is so much easier than pulling the spark plug and trying to prop it up against the case of the engine to see if it has spark. Just hook this up inline to the spark plug, crank the engine, and get immediate feedback that spark is present. This is great.
R**N
Good tool
Handy device that takes guess work out of sparking issues for engines.It is made in the usa.
A**D
Shocking less
Works great.. saves me from getting shocked
B**S
Easy way to check engine spark
I find this device really helpful when I need to quickly see if my small engine has spark. It’s much easier than removing the spark plug and trying to hold it against the engine case. Connecting it inline to the spark plug and cranking the engine gives me instant confirmation if there’s spark or not. It’s a simple improvement that saves me time and hassle.
B**R
Very well made worth the money
Very good product I can see that the quality exceeds what I can buy in the stores locally
D**.
Works good I’m pleased
Works as it should
R**N
Perfect for the job saves time
R**B
GOOD PRODUCT
K**N
Muy útil. Pará identificar fallos en cables y bujías. Y saber si hay chispa.
J**N
Great product and long plug to go down in the cylinder to connect to the spark plug and great to put onto the coils, long enough to see from cyclinder 1 and 8
D**S
Great for small or big engines and works great in the sunlight. Nice and bright bulb