OEMTOOLS 24444 Coolant System Refiller Kit, 5 Adapters, Eliminate Trapped Air, Test Radiator and Heating Core Lines for Leaks, Vacuum Fill Coolant Tool, Vacuum Leak Tester, Multi

Purchased to do a refill on a Diesel engine flush refill. Lots of gallons of coolant and separate systems to test and refill. Good value.This unit comes with a handful of adapters and plugs so it would seem to fit a wide range of systems. This product fit the bill perfectly for the job and made the process faster cleaner and helped complete the job properly.. Well made, easy to use and clean.Will certainly last for many coolant changes. Usage is straight forward but I wouldn't disagree with folks looking for instructions or general setup tips from the manufacturer.

I found out about cooling system vacuum refiller kits while researching how to change the coolant in my car (which is notoriously difficult to change due to the tendency to get air bubbles and air locks upon a coolant change). Some people were reporting spending 8 to 10 hours doing ALL KINDS of crazy things to try and fix a hard to clear air bubble in my type of car. So, after a ton of research, I found out that these kits make changing your coolant literally a piece of cake and it only takes a couple minutes. This would be a huge advantage because I'm going to do a 'home flush' with distilled water, which means draining and refilling 3 or 4 times to dilute all the old coolant out (then refilling one last time with 100% strength new coolant).After researching, I found out that there is a leading brand of these vacuum coolant kits that costs approximately double what I paid for the OEMTOOLS 27066 kit. That brand gets great reviews, but I didn't want to spend well over $100 for my coolant flush. So, I picked the tool that seemed like the next best quality, and I was NOT disappointed. This thing worked GREAT! It literally took 30 seconds to place the cooling system under vacuum, and another 1 minute to fill a gallon and a half of distilled water back into the system. And NO air lock afterwards.Here's some things I learned:1) Pay attention to the reviews and closely look at the pictures of the kits you are considering. A number of cheap kits (not this one) look the same and get consistently bad reviews. The OEMTOOLS kit (and other branded differently but identical kits) get pretty good reviews. Also note that some of the kits do not have different expanding rubber bushings to exactly fit different sized radiator necks. They just have a tapered rubber 'cone' that you cram in there and hope it holds. I really prefer the custom fit of the OEMTOOLS style kits.2) When I first tried to use this kit, it did not work at all and would literally draw no vacuum despite running my air compressor for several minutes. I knew that my cooling system was solid. I knew that I had the tool well sealed in the radiator neck. Honestly, I thought I possibly had received a defective tool, or maybe my air compressor was not big enough to create the vacuum. I slept on it, and figured it out! My overflow hole is very low in the neck, and the tool was not able to seal that passageway. Simple fix was to remove the hose to the overflow tank and use a standard rubber vacuum hose cap to plug it. Once I did that, my small compressor created the required vacuum in literally less than 30 seconds.3) I have a very small pancake-style compressor. I think it is 2.7 CFM at 90 PSI. It had NO TROUBLE AT ALL pulling the required vacuum. I did not need a huge shop-size compressor.4) The other reviewer is right...the air compressor (male) fitting that comes on the kit is not the standard 1/4" quick-disconnect. It looks like it is bigger...maybe 3/8"? It definitely did not work and I had to temporarily rob one from another tool. FYI, in case you want to purchase one in advance.Hope this helps....this was a great tool and made this job super easy.

Great product. Solid. Works great. Just don't forget to flush it out with water and let dry and should last you a long time. You can't beat the price for such a great quality, built tough.

This tool turned out to be a mixed bag. The tool is well constructed and does what it's supposed to do quite well. Very easy to use and nicely constructed. While the coolant tank adapters work, specific caps for the application would offer a much more robust solution.What I didn't like was the tool mfgrs. quality control. My "1st" tool's vacuum gauge did not work and actually had rust around the screws on the gauge and around the fitting from the gauge to the manifold block. Luckily, I bought this tool from Amazon and received a replacement the next morning. I had originally contacted the mgr., but the resolution process/time was deemed unacceptable.My second gripe is the tool's packaging. It comes in a very nice blow moulded case, but everything just flops around inside. Makes zero sense.Bottom line is, It works very well if you get one that works. The method for attaching the tool to coolant fill tank is a bit lacking, but does work.

Very glad I decided to give this kit a shot. It saved me several hours of work during a cooling system flush on my 2006 Volvo XC70 (one of the adapters does indeed fit the coolant expansion tank on this car). I used a fairly small pancake style compressor and was able to easily pull a ~23 inHg vacuum several times. Making sure you have a really solid, tight seal is critical. A word of advice, make sure you read the instructions before attempting to use this, and I'd also recommend watching a video or two on YouTube demonstrating how to use it, especially if you're a visual learner. It's a little confusing at first if you're unfamiliar, but take your time and learn beforehand and it'll benefit you. Very happy with this kit! Nice, high build quality, too, by the way.

Love this thing! I'd been filling my coolant the old-school way and fighting with trapped air pockets for many years, but I saw someone using this on a YouTube video and I decided to try it. It worked just as advertised, and was so much more convenient.This might appear to be a cheapo Harbor-Freight-type kit, but it's not. It's actually built very solidly and seems like it would be right at home in a mechanic's shop seeing daily use. The storage case is a little awkward, but it holds everything, albeit a little loosely. It might do better in a small tool bag if you don't want it rattling around in there.I was able to find one of the included adapters that fit perfectly in the coolant reservoir tank of my 2005 Mazda B2300, and I had no problem getting an airtight seal and pulling a vacuum just using a little pancake air compressor. Then the coolant sucked up perfectly and filled the system right where it needed to be. Not a drop spilled, and not a bubble to worry about. Couldn't be easier.Price isn't trivial for a home mechanic, but it seems reasonable once you see the quality in hand. It should hold up no problem for the rest of my wrenching career.