---
product_id: 320969224
title: "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"
brand: "muzzys"
price: "431 Lei"
currency: RON
in_stock: true
reviews_count: 8
url: https://www.desertcart.ro/products/320969224-muzzys-a-c-hack-kit-fits-ram-2019-2020-2021
store_origin: RO
region: Romania
---

# Fits Ram 2019-2025, gas & diesel Minutes to install, no permanent mods 8°-15° cooler A/C output 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

**Brand:** muzzys
**Price:** 431 Lei
**Availability:** ✅ In Stock

## Summary

> ❄️ Cool your ride, skip the drama — Muzzys A/C Hack Kit keeps you chill and in control!

## Quick Answers

- **What is this?** 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 by muzzys
- **How much does it cost?** 431 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/320969224-muzzys-a-c-hack-kit-fits-ram-2019-2020-2021)

## Best For

- muzzys enthusiasts

## Why This Product

- Trusted muzzys brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Factory Defect? Fixed!:** Bypass the heater core blend door flaw that dealers won’t fix properly.
- • **Durable Premium Components:** Built to last with high-quality clamps and valves—no engine lights, no damage.
- • **Plug-and-Play Installation:** Get back on the road fast with a no-permanent-mod, clamp-on design.
- • **Universal Ram Compatibility:** Engineered for Ram 1500, 2500, 3500 trucks from 2019 through 2025, gas and diesel.
- • **Beat the Heat with Precision:** Slash your cabin temps by up to 15° without costly dealer fixes.

## Overview

The Muzzys A/C Hack Kit is a premium, easy-to-install solution designed specifically for Ram 1500, 2500, and 3500 trucks (2019-2025, gas and diesel) suffering from weak or warm factory A/C. It bypasses the defective heater core blend door, delivering 8°-15° cooler air without permanent modifications or risking engine damage. This kit includes high-quality clamps and valves, installs in minutes, and avoids costly dealer repairs that often fail.

## Description

Full description not available

## Features

- Muzzys premium A/C hack mod kit. Fits: Ram 1981-2019, 2020, 2021, 2022, 2023, 2024, 2025, 1500, 2500, 3500, gas, and diesel trucks with weak and or warm A/C from the factory. Fix the design defect they refuse to fix yourself!
- Gas trucks-**See Photo 4**Install the valve at the water pump on the front of the motor on the heater supply hose. Find the hose labeled "Eng Out" and remove it. Install this valve to the hose you removed and connect the supplied hose to the valve and the water pump. Install clamps as shown in the photos. Top off coolant, you will lose some when you initially removed the hose from the water pump.
- Diesel trucks- **See Photo 5** Install the valve on the heater supply line above the turbo. See Photo 5 to determine exact location to install the valve. Remove the heater supply line from the black tube coming from the motor. Install this valve to the hose you removed and connect the included hose to the valve and black tube and install the clamps as shown in the photos. Top off your coolant, you will lose a small amount when you remove the line.
- There is a known defect in these new trucks. The blend door in the dash allows hot air via the heater core into the HVAC system when the AC is on. There is a service bulletin to address this and it requires them to rip your entire dash out to replace the HVAC system. I guarantee you will have damage and problems down the road if you allow them to do this plus there are many reports that it does not even fix the problem! This is an easy fix that is guaranteed to make your A/C blow 8°-15° cooler!
- This kit installs in minutes without making any permanent mods to your truck. It is 100% safe for your truck and won't cause any damage or Engine Lights. This kit is comprised of premium components that will not fail.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | 0.625 inches |
| Brand | Muzzys |
| Color | Black |
| Connector Type | Clamp |
| Thread Size | 0.625 |
| Thread Type | NPT |
| Item Weight | 1 Pounds |
| Number of Pieces | 5 |
| Manufacturer | Muzzys |
| UPC | 600599657694 |
| Item Weight | 1 pounds |
| Package Dimensions | 5.71 x 3.27 x 1.22 inches |
| Item model number | 10377 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Size:** 0.625 inches
- **Brand:** Muzzys
- **Color:** Black
- **Connector Type:** Clamp
- **Thread Size:** 0.625
- **Thread Type:** NPT
- **Item Weight:** 1 Pounds
- **Number of Pieces:** 5
- **Manufacturer:** Muzzys
- **UPC:** 600599657694

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/31CFn2nDUFS.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/61cuVi4-VpS.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/61cBGXRusyS.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/91eFve-9dQL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/91HCn5HujHL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fixed my warm AC
*by P***Z on May 28, 2025*

I had an AC technician that checked my truck and told me I needed a new compressor. After seeing this item being described on a forum I decided to try it. Boy, now my AC gets very cold and is summer here. Definitely worth the install. Recommended!

### ⭐⭐⭐⭐⭐ Fix that warm AC in your Ram!
*by S***. on May 9, 2025*

Ram engineers have some questionable designs - such as running the hot hose to the heater core alongside the AC hose. This valve shuts the coolant off on the hot hose and lets the AC hose stay cool. Install took about 15 minutes, and roughly 10 minutes of that was trying to remove the factory hose off the hose barb that ran apparently glued on. But overall, easy install, fits nicely and above all it makes the AC considerably colder!

### ⭐⭐⭐⭐⭐ Great Kit!
*by P***L on January 23, 2025*

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!

## Frequently Bought Together

- 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
- BOSCH 6090C HEPA Cabin Air Filter - Compatible with Select Ram 1500, 1500 Classic, 2500, 3500, 4500, 5500 Trucks
- FRAM Extra Guard CA12375 Flexible Replacement Engine Air Filter for Select Ram 1500 Models, Provides Up to 12 Months or 12,000 Miles Filter Protection

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-20*