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Cylinder Leak Down Tester Kit,Automotive Engine Pressure Gauges Compression Test Leakage Detector Tool Set - Light red (TU-21)

Free shipping on orders over $29.99

$36.56

$ 18 .99 $18.99

In Stock

1.Color:Black


About this item

  • 【Features】: it is used to detect many common faults of the engine, such as piston ring wear, cylinder head crack, valve wear and cylinder head seal burst. It checks the amount of leakage in the engine cylinders and helps determine the source of the leakage.
  • 【General accessories】: It is very suitable for testing trucks and models with minimum clearance. Check the leakage of the four stroke engine.
  • 【How the leak tester works】: once the leak tester is connected to one of the cylinders, compressed air (45-100 psi) enters the cylinder through an integrated pressure regulator. Diagnose by observing the amount of leakage shown on the cylinder leakage gauge and listening to the leakage at all points of the vehicle system. It is not applicable to shallow cylinders.
  • 【Easy to operate】: remove the Schrader Valve and close the regulator before using workshop air. Install the hose on the cylinder, install the device on the air source, calibrate the leakage counter, and secure the device to the cylinder hose. Perform the diagnosis by observing the amount of leakage displayed on the cylinder leakage gauge and listening to the leakage at each point in the vehicle system.
  • 【Package】: 48cm recoil hose, 10mm and 12mm spark plug adapters, fixed connector M14 x 26mm, fixed connector M16 x 26mm, pressure+cylinder leakage gauge, air regulator, instructions and case.


Cylinder Leak Down Tester Kit


Enmanuel
2025-08-20 11:43:58
Excellent product. Super fast shipping.
Brandon meggitt
2025-08-14 10:18:41
Tried to calibrate tool before using as described in instructions but tool wouldn't calibrate at all like it says. Therefore tool was junk and couldn't be used to do a leakdown test.
Andrew H.
2025-08-13 17:07:18
It’s what I expected for the price. It’s a good product and seems solidly built comes with all the accessories that I need and works. Can’t ask for anything more.
b
2025-08-09 14:17:33
I had to make my own adapter to fit the cylinder head that I was working on. The tester worked just fine. The leak percentage gauge might not be that accurate, as it went below 0% at 100 psi when testing the tool itself. I calibrated it by making an air-tight cap for the adapter, and finding what psi yielded 0% leakage, which ended up being around 96 psi, so not far off. When using the tester, I only take it up to 96 psi and I know that the leak percentage reading should be fairly accurate.
Nick Sexton
2025-08-04 18:01:28
Building a Mk1 VW with a 1.8t 20V swap and I needed to check the health of the engine, I was a little nervous about the cost of this kit but it worked great. It helped located a few minor issues. Its one of those rarely used tools that is nice to have and at this price point I cant complain!
Paulo Golino
2025-06-27 10:39:12
Works as described
ABGtiagoRD
2025-06-25 20:51:32
Went to use for the first time and now the hose is stuck inside cylinder head. Unable to remove given the depth and given the end connector is round (has no hex head)... This is the main hose with the ARO quick-connect fitting one one side and a crimped 14 mm threaded end on the other, which turned out to be defective.
Matt
2025-06-09 13:49:37
Zeros at around 28 psi and it works great for the price you can't beat it and didn't have to pay a shop to do this who knows if the guy doing it knows what he's doingI was able to rule out internal issues with this tool, all the cylinders were within a few % of each other and that's what's important consistency that combined with perfect compression numbers tell me it's fine internally even at 200k
ROGELIO N.
2025-06-05 12:05:30
Aun no lo pruebo pero la presentacion esta bien y espero que al igual funcione bien gracias.
Patrick M.
2025-02-27 13:15:39
Hey, for this price it's pretty good!Not top quality but also a fraction of the cost of top quality.Used it on a snowblower that I suspected had a leak but it didn't.So as far as that goes it works very well.Case plastic is a bit on the cheap side but at least it has a case.I'd say it's well worth the cost.If I run into problems with it down the road I'll update this comment but so far so good!
Briseida Caceres
2025-02-23 18:51:11
Fácil de usar
Jacob Hamm
2025-02-07 10:14:15
The original o-ring did not seal other than that really good stuff
Aashish
2025-02-06 12:46:07
I got the product as one day delivery and it seemed good (at least at first look). Without wasting your time, let's see the pros and cons:Cons:Everything is made out of cheap material, the seals started leaking as soon as I connected a compressor to it. It wasn't working. I was getting 5% leak in a cylinder which had 0 compression at all. Wasted money, wasted time and wasted efforts. A person should be paid even to buy this one.Pros:I didn't see any.
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