MUZZYS A/C HACK KIT Fits: Ram 2019 2020 2021 2022 1500 2500 3500 Trucks with Weak/Warm Air Conditioning from Factory, Heater Core Blend Door By-Pass Mod Fix, W/Clamps Hose Shut Off Valve, Gas & Diesel

Installed after my '20 Ram a/c felt a little too humid and warm. Installation is a little difficult when you're trying to remove the original hose. That hose just doesn't want to come off. Once you're past that point, installation is easy. After running the truck for about five minutes, the a/c temp dropped about 5-8 degrees. When driving in the town, the temp is very comfortable now. A great solution to a poor original design.

Finally got around to installing it in my 2019 Ram 2500 with the diesel. If my windows weren’t tinted I’d probably have done it sooner. It’s an easy install in concept. Just pull the hose off and pop this kit in. However, I wanted to get a better fit and not have a huge bend or kink in the line, so I trimmed about 2” off the kit and probably another 1.5” off the factory hose. I pulled the metal brace, the egr hose and the transmission dipstick all out of the way. The factory hose is glued on, so it took some gentle work with some picks and a set of Cobra pliers to work it off the plastic fitting. Take your time! Twenty minute job I turned into an hour, but it’s the way I wanted it now. Pic of the completed install. And yes the transmission dipstick went back in easily, the picture makes it look tighter than it is.

I live in the desert and I NEED my AC! I am at risk of heat stroke. I have been driving around with hardly any air flow and barely cool air coming out of my vents for a year and a half. I thought I needed my AC charged which of course, you can't do on these new Dodge trucks because Dodge, in their infinite wisdom, decided to make that impossible unless you can afford an $18,000 machine to do it. So what used to take me 5 minutes and $15.00 to do, now costs $1,000.00 (Yep, that's what I said) because I have to take it to the Dodge dealership to have it done. Uh, no! Not doing it. Not losing my truck for a week in the service bay and paying $1,000 to charge my AC. Then I came across this hack on Youtube and they said that I could find this part on Amazon. So, I thought, what the heck. I've got nothing to lose. So, yes, for 20 bucks, I fixed my AC. Turns out, it didn't need to be charged. I just needed this adapter. I needed to bypass the heat that was coming through the line to the heater core and running along side the cool air (Stupid Dodge people and you know who else, who are designing these vehicles). And of course, I needed to change my cabin filter too, so that I would have good air flow. I now have powerful and cold AC! And just a side note, I'm female and this took me all of 10 minutes, so you can do it gals!

it did exactly what was needed didn’t need to refill my coolant and came with everything needed definitely blows 2x colder !!

The install was easy. Didn’t lose much antifreeze during installation. I had to really tighten the supplied hose clamp down to stop a drip. A must have for the 5th gen Ram. Huge difference in A/C performance.

If you own a 2019 or 2020 Ram 1500, 5th Gen, here is your answer to a poor performing AC system. There is a known fault with the blend door actuator in the dash which doesn't allow the door to completely close when using the AC in warmer months. The problem is the dealer has to yank out the whole dash to get to it and fix it. No sir.... I didn't want to lose the use of my truck for who knows how long and then end up chasing rattles for the rest of the time I owned the truck due to the dash being removed and reinstalled. This valve installs easily and does the trick. I leave it full open from November through the end of April, but by May in Texas it starts heating up. I run it halfway closed until June where I close it off completely until it cools off and I might need to run the heater or defroster. If the weather changes up really quick though, you can easily pop the hood and adjust the valve as needed. This makes about a 20-degree difference in the temp of the air coming out of the vents, right way, not 15-30 mins later. Another hack for 5th Gen owners 2019-2020 is through that cheap cabin air filter, and go with a K&N lifetime filter that you can clean, dry out, and reinstall. It hugely increases the volume of air flow coming out of your vents. You're welcome!

Installed on my 2021 Ram 2500. Helped with the ac cooling better. Easy to install fit perfectly, and decent quality. Works as intended. Traded the truck in 2025 and still was working as it should.

Not as easy to install as the reviews here and the YouTube videos suggest. On the 2021 Ram 1500, the hose to the Engine Out is glued on and I could not remove it without cutting the hose and removing the section that was glued down before being able to connect the Muzzy clamp. With that said it seems to be cooling better than before.

I’m in Australia so I had to cut the heater pipe as our steering column is in the way , but it worked out well, nice cold ac

Fixed my crappy account instantly. Now it gets to cold where before it only got mildly chilly but still warm

100% recomendable cambia como 5 o 6 grados Centígrados soy de Monterrey Nuevo León Mexico los calores aquí an llegado asta 48 grados centígrados y casi no enfriaba y se tardaba mucho en enfriar la cabina y con este bypass es algo sorprendente enfría al momento de encender la camioneta en 2 min ya tienes una cabina helada

This is best $30 you will spend and your air conditioning is way too cooler. Esay to install