• EASY COMPLETE COOLANT SYSTEM REFILLER: Refills the entire cooling system including the Heater Core
  • HUGE TIME SAVER: Eliminate time consuming bleeding and purging, and completely remove all trapped air from your cooling system; Removing air through a radiator burp is much more time intensive
  • DISCOVER LEAKS: It’s easy to check for leaks while under vacuum; if your vacuum level decreases while all valves are off, you have a leak in your system
  • WIDELY USEFUL: Comes with five adapters that fit most common radiator necks and coolant reservoirs
  • SIMPLE TO USE: All you need to use this coolant system vacuum kit is a shop air compressor; The included venturi valve turns any air compressor input into a strong vacuum force

Had air getting into my cooling systems heater core, once I jacked the car way up in the air and ran the engine over 1500 rpms it seemed like I had managed to get all the air out, but never could be sure. Eventually I would hear a whooshing sound in the heater core when I accelerated. And the car heat would get cool at idle. Then I knew that the air was back in the system. What I did to eventually remedy the problem was to purchase this cooling system refiller kit and also rent a vacuum gauge from the local auto parts store. What I found was that my radiator cap which was rated at 13 PSI‘s really opened up at 16 PSI‘s and also one of my hoses connected to the heater core had a small leak which was probably where the air was entering the system directly into the heater core. After repairing the hoses I hoped up the refill her with a 32 mm adapter for my radiator neck, connected the siphoning section to my airline and started to vacuum out the system. It held vacuum fine for over three minutes So I then proceeded to add any freeze with a 50-50 mix to the system and I worked just says expected. My hoses got sucked down flat and once I turned on the fill line, it filled the system perfectly. Before fixing the system my heater put out around 140°F temperature at the vents, now I’m seeing 160°F in the same vents, and no gurgling sound whatsoever at Idle. Also with the tool I have the assurance now that the system is 100% filled with anti-freeze with no air introduced

This was great and made it possible to replace the coolant in my 1998 Porsche Boxster without any air in the system! My heater wasn't working and my mechanic suggested that there might be air in my heater core. Heat works again! I even made a detailed how-to video on my YouTube channel 'Help me DIY' that shows it in use!

Earlier this year I bought a vacuum brake line bleeder and it just about changed my world view. Just a few weeks ago I upped the ante and added this vacuum cooling system re-filler to my arsenal. It's absolutely amazing. So you draw a vacuum on the entire system, watch as hoses compress, and then open the other valve to "suck" coolant into the system. It's a method that fills without needing to burp the system, and the entire process is super quick. I'll get a lot of use out of this tool.

This is a tool that is a must if you do any repairs or coolant flushes on a vehicle or motorcycle! I have never had the need until recently for this tool and after a complete engine change, I could not get the air out of the system. I ordered the tool and all I can say Is wow. It has a great venturi vacuum system that allowed the tool to vacuum down the engine cooling system to 27"ihg and it sucked the radiator hoses and heater hoses flat! This took approximately 2-2.5 minutes. 5hp 60 gal. single stage air compressor. (454ci) 7.4L Chevrolet big block engine. The engine coolant fill was very fast and nearly perfect. After the fill was complete, there was very little to top off and the truck is running great now without the overheating issue. I would definitely recommend this tool not only because it works great, but it also has multiple adapters and even the "cone" that works for small radiators, like motorcycles.

Products looks to be made out of good quality material. Workes great on remove air form radiator/heater core front and rear. The only problem I head was when replacing head gaskets/heads (where engine is completely empty of antifreeze) was not able to remove all the air pockets out of the engine/heads . So far love the product would highly recommend .

The vague, microscopically small direction sheet needs improvement. One big, clear picture of the hookups is needed with the 3 valves clearly numbered in order of use. 1. How do I not add more air into my cooling system because at the beginning, the clear coolant intake tube is not filled? See answer by Testor at the top of the Questions section above. 2. How do I know I am done? When the vacuum returns to zero. 3. What supplies or other tools do I need? One 5 gallon bucket with slightly more antifreeze than your car needs so the pickup hose does not suck air. I attached the filtered hose to a stick to keep it submerged in coolant at the bottom of a 5 gallon bucket. When done, you can just add leftover coolant to the overflow tank. You need one small bucket to catch the coolant spray of the short clear output hose. The aftermarket heads on my smallblock 520hp Chevy have recesses that trap air - unlike stock heads. No other air-bleeding tricks worked.

With all of the glowing reviews on this tool, I was really, really skeptical about it. I mean, they just seemed to be too much, if you know what I mean. I used this on my '08 Miata, with an aftermarket aluminum pressure tank. That tank was the only issue with using this filer. But even with the aluminum pressure tank this worked spectacularly. As mentioned, I had some issues with the filler opening of the aluminum tank, it's not as "open" as the stock plastic tank would have been so the fitting didn't go as far down as it wanted to go. But even so it sucked all of the air out of the system & then refilled it without any problem. I just stood there, watched it do it's thing & then cheered. The temperature gauge told the story, reporting that the engine was running 10-15 degree F lower than before. This is well worth the money, even if you only use it once.

Never ever mess with spending forever trying to burp your system again! I bought this because I couldn't get an air pocket in my heater core to bleed out after a radiator and thermostat install in my 01 Yukon. I tried idling it without the radiator cap on with the front elevated multiple times for long stints. No dice. This thing sucked that air pocket out in no time (and that's without draining the system). No more mediocre heat and gurgles coming from the heater core! Just remember to somehow plug the overflow tube so the tool can draw a vacuum. For my truck, using the cone-shaped adapter took care of this. Overall quality of the tool is very good. Case is kinda cheap and the hose adapter leaked on my quick-disconnect, but the rest of the tool feels solid and great value for money.

Was having trouble with overheating caused by air pockets on airplane engine after replacing all radiator hoses and relocating heater core. I was skeptical but this tool solved my problem in five minutes. Attached it, attached air hose, vacuum pressurized the system, no leaks as vacuum held, sucked coolant into system, done. I was so impressed that I actually drained the system and repeated the process just in case it was a fluke. I would not work on a cooling system again without it, even if I weren’t having trouble with air pockets. Gives you assurance that there are no leaks and instantly fills the system with no mess and no trapped air. Very good quality tool and lots of different sized adapters. Love it.

I've used this twice on my C6 Corvette and it worked great both times. Plenty of adapter sizes (I used the tapered one). It pulled plenty of vacuum and filled the system in no time. However, tightening it down the first time I noticed it was very rough. Using a hex key on the bottom I disassembled it and applied some Super Lube to the washer that the tightening knob turns against, which was already showing wear. I reinstalled with some blue thread locker and it was a night and day difference.