---
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: "Rp1121002"
currency: IDR
in_stock: true
reviews_count: 12
category: "Muzzys"
url: https://www.desertcart.id/products/320969224-muzzys-a-c-hack-kit-fits-ram-2019-2020-2021
store_origin: ID
region: Indonesia
---

# Clamp-on valve, no engine light risk 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:** Rp1121002
**Availability:** ✅ In Stock

## Summary

> ❄️ Cool your Ram, skip the drama—upgrade your ride’s A/C game now!

## 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?** Rp1121002 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/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

- • **Plug & Play Cool:** Install in minutes with premium clamps and hoses—no permanent modifications or damage.
- • **Universal Ram Fit:** Fits Ram 1500, 2500, 3500 models from 2019 through 2025, gas & diesel trucks alike.
- • **Engine-Safe Design:** 100% safe for your truck with zero risk of engine lights or system failures.
- • **Beat the Factory Flaw:** Bypass the heater core blend door defect that makes your A/C warm—no dash teardown needed.
- • **Guaranteed Chill Boost:** Experience 8°-15° cooler air instantly—feel the difference every drive.

## Overview

The MUZZYS A/C Hack Kit is a premium, clamp-on bypass mod designed to fix the factory heater core blend door defect in Ram 1500, 2500, and 3500 trucks (2019-2025, gas & diesel). It delivers 8°-15° cooler air conditioning without costly dash removal or permanent modifications, installs in minutes, and ensures zero engine light triggers, making it the smart, safe upgrade for any Ram owner frustrated by weak factory A/C.

## Description

Buy 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: Heater Blend Door Levers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Best $20 I ever spent! - I must admit that I saw this and thought I could just go purchase these items myself and build my own. Then I thought that would mean I'd have to measure what size I needed and drive to the store, look for the parts and hope they were in stock at a lesser price. Then I looked online for similar parts and it just didn't make sense to do all that. This item has all the parts you need without the hassle at the same price, maybe even less. On top of that, it took 15 minutes to install and it works perfectly... And what a difference! I didn't get out a thermometer and measure the temperature, but I can definitely tell a difference. To me it feels significantly cooler than before. Definitely worth it to me. I highly recommend this.
Review: Great Kit! - 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!

## 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 |
|---------------|-------|
| ASIN | B092YVQS7K |
| Best Sellers Rank | #107,265 in Automotive ( See Top 100 in Automotive ) #113 in Automotive Replacement Heater Blend Door Levers |
| Brand | Muzzys |
| Brand Name | Muzzys |
| Color | Black |
| Connector Type | Clamp |
| Customer Reviews | 4.5 out of 5 stars 385 Reviews |
| Item Weight | 16 ounces |
| Manufacturer | Muzzys |
| Material | Metal |
| Material Type | Metal |
| Model Number | 10377 |
| Number of Packs | 1 |
| Number of Pieces | 5 |
| Set Name | True |
| Size | 0.625 inches |
| Thread Size | 0.63 |
| Thread Type | NPT |
| UPC | 600599657694 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Muzzys
- **Color:** Black
- **Connector Type:** Clamp
- **Item Weight:** 16 ounces
- **Material:** Metal
- **Number of Packs:** 1
- **Number of Pieces:** 5
- **Size:** 0.625 inches
- **Thread Size:** 0.63
- **Thread Type:** NPT

## 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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best $20 I ever spent!
*by J***Y on August 17, 2022*

I must admit that I saw this and thought I could just go purchase these items myself and build my own. Then I thought that would mean I'd have to measure what size I needed and drive to the store, look for the parts and hope they were in stock at a lesser price. Then I looked online for similar parts and it just didn't make sense to do all that. This item has all the parts you need without the hassle at the same price, maybe even less. On top of that, it took 15 minutes to install and it works perfectly... And what a difference! I didn't get out a thermometer and measure the temperature, but I can definitely tell a difference. To me it feels significantly cooler than before. Definitely worth it to me. I highly recommend this.

### ⭐⭐⭐⭐⭐ 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!

### ⭐⭐⭐⭐⭐ Game changer!
*by R***N on July 26, 2026*

2021 Ram 1500 owner- had 65,000 miles and noticed A C was smelling musty - brought it in for a service and inspection - got a cleaning service done and all a sudden my air wouldn’t get as cold as it used to. The dealer said it threw a code for a door actuator which could only be fixed by removing the entire dash and costing thousands of dollars in service. Ram has a known design flaw for this and this 20 buck part I installed myself at home has made my AC COLDER THAN ITS EVER BEEN. For those who don’t want to waste thousand of dollars post warranty on their vehicle… this item was the best purchase hands down

## 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
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*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-10-13*