⚡ Diagnose leaks like a pro—fast, precise, and foolproof!
The Astro Pneumatic Tool 7856 is a lightweight, aluminum universal air-powered pressure tester designed to quickly fill and maintain pressure in cooling systems up to 30psi. Its quick connector fits nearly all radiator caps, enabling fast, accurate leak detection with a clear pressure gauge for professional-grade diagnostics.
| Brand | Astro Pneumatic Tool |
| Material | Aluminum |
| Item dimensions L x W x H | 7.75 x 7.17 x 3 inches |
| Item Weight | 0.66 Kilograms |
| UPC | 745227058877 |
| Global Trade Identification Number | 00745227058877 |
| Manufacturer | Astro Pneumatic Tool |
| Part Number | 7856 |
| Item Weight | 1.45 pounds |
| Product Dimensions | 7.75 x 7.17 x 3 inches |
| Item model number | 7856 |
| Item Package Quantity | 1 |
| Measurement System | Metric |
| Included Components | Universal Air Powered Cooling System Pressure Tester |
| Batteries Included? | No |
| Batteries Required? | No |
B**D
Great tool
This is so much easier for systems that have major leaks, you can easily search for them while the air compressor does the air control, only goes up so high in pressure due to the regulator, less then 30psi. Doesn't come with an air hose fitting atleast mine didn't. Great value and build quality, you can also change the hose end to another style if you don't have the quick attachment kinda. Other Amazon sellers have some great kits with quick attachments to go with this item.
W**O
Works great
So nice to lift the car with steady pressure on the system
M**3
Wish I'd bought this sooner.
My only complaint is the attachment it came with is a 2 piece unit with the cone and a piece that goes inside the cone. It comes apart easily under pressure. I have one of the " master cooling system kits " with a bunch of adapters to fit different radiators etc, and those all fit this. It's so much easier to pressure test with regulated air than with the hand pump. I've also used this to assist in draining and flushing of the cooling system. It works great.
S**N
Great alternative to overpriced tool truck testers!
I bought this as an alternative to the Snap-On version that costs $281 before tax and I am glad I did, it is the same tool. Part of our preventive maintenance inspection at work is to pressurize the cooling system on Class 8 trucks and using a manual pump to pressurize these large systems is time consuming and tiring. This can pressurize them in seconds and you can regulate the pressure you want to pressurize them to. The pressure release button at the end of the hose is a nice feature because you can slowly release the pressure so you don't blow coolant all over the place. This tool will save you money, time, and hassle when testing cooling systems of any size.I do wish it had come with a case and an adapter for putting it on the tanks but it didn't so I bought a GM adapter (Astro 7858541) that had the fitting I needed for the quick connect and used the twist lock adapter off of my old manual tester with it.
A**T
Pneumatic cooling system tester
Works great! I love having this it makes diagnosing cooling system leaks so much easier. Also saves a lot of time verse using the hand pump testers. Highly recommend.I have a Matco tools master cooling system tester and this works with it, Uses the same fitting.
C**.
It works 90% of a Snapon for 1/20th the $
Vacuums 3 gallon system to 20inhg in about 5 minutes. Would not go any lower, which is a little disappointing. Snap on goes to 25inhg. But it’s $650. So I will deal with it. It connects to other brands of adapters.
E**D
Click and turn
This is one of the best pressure tester. Click the air line on then turn the the inlet valve till you get to the pressure on the cap turn off and check check for leaks
D**.
Works as expected
Works as expected
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