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Your cart is empty.Leading the way in UV leak detection, Mastercool’s Professional UV Leak Detector Kit offers all of the components needed to easily locate leaks. This kits includes a powerful mini UV light, replaceable 1 oz (10 application) dye cartridge, A/C connection hose with R134a coupler, R12 adapter, 1 oz. oil/ATF/gas and diesel fluorescent dye, 1 oz. engine coolant dye, 4 oz. dye remover, 25 service information labels and UV enhancing safety glasses.
Away
Reviewed in the United States on January 13, 2025
Great item
Tommy S
Reviewed in the United States on November 16, 2024
Best product with many uses like fuel and coolant dye unlike just the a/c dye. Great light as well.
CB
Reviewed in the United States on October 8, 2024
I used this on my Vintage Air system in my 1974 Dodge Charger. The kit I used was universal so I made the lines and I was able to find a very small leak in one the lines. It was because of a poor job by me when I crimped an end on. This made the job much easier than expected!
Don
Reviewed in Canada on April 5, 2023
Can’t tell you too much about this kit not used yet but had the use of simuler kit and was happy with finding leak results
Customer
Reviewed in the United States on September 26, 2022
This is a great product. My only complaint is that there is only a small amount of dye for the a/c system. I used it maybe 2/3 times and ran out. Also, the instructions could be better written.
T.H.
Reviewed in Canada on July 7, 2021
Fantastic kit very useful for all different types of leak detection
Roman Levandovsky
Reviewed in Canada on April 23, 2021
The kit is set up to test for different kind of leaks. It worked really well. The UV light flashlight is very durable and well built. The only thing that’s not clear from the instructions is what dye to use for power steering fluid (it’s the oil one) and how much to put in. I poured half the little bottle and it’s more than plenty! Probably should have went with 1/4 or 1/8th of the bottle. You don’t even need the special glasses with the amount of fluid I used ;). I found my leak, it was a small hose clamp, saved myself $2500 worth of mechanical work. So definitely worth it.
Customer
Reviewed in Canada on March 25, 2018
great kit
Claude1269
Reviewed in Canada on September 6, 2017
works...Hope the box could be use to store the hardware, got to get a tool box
Ethan Miller
Reviewed in the United States on October 2, 2014
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TSG
Reviewed in the United States on January 16, 2014
I've seen people take stars away from a product because they're dumb, and as much as I want to take stars away from this product for not working, the fact is I'm dumb, and that's the source of my disappointment.After doing some research, I went with this kit because the light is powered directly by the car battery. I read numerous reports of "cordless" battery operated lights not being bright enough or killing their own batteries quickly. Not a problem here - the light works great. It is worth the price of admission for this kit.I bought the kit to diagnose a coolant leak on my Jaguar, so the coolant dye is the only dye I've tried - take that for what you will. And it's the coolant dye that is the source of my frustration. In the first, the coolant dye that comes with this kit is an orange or yellow color, which happens to be almost the same color as dried up Dexcool. I found several false positives (dried Dexcool) before I learned to tell the subtle difference between that and a fresh leak (the dye). I should have known that dye comes in other colors, and bought a different color to start with. Duh, my bad. Secondly, this dye is SERIOUS BUSINESS. After finding my leaks I flushed the entire cooling system with distilled water TWICE, and there is STILL dye in the system. My coolant reservoir is full of bright green liquid instead of being full of of bright orange Dexcool. I'm annoyed at that, but as it turns out you can buy dye specifically designed for long-life coolants that will not discolor the coolant. I should have bought that before using the dye that comes in the kit. Duh, my bad again.Finally, the kit comes with a small spray bottle of cleaner. You're going to need this to remove dye that ends up all over your engine. The small bottle is not enough to clean up even 50% of the mess the dye will make with a good sized leak. I would strongly recommend getting a full-size bottle of dye cleaner before starting down this road. If you are diagnosing a smaller leak, or maybe a different type of leak (AC, etc.) maybe it won't be a problem, but I'd just have that bigger bottle on hand, just in case. :)
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