---
product_id: 149567985
title: "Master #B401"
brand: "lichamp"
price: "$215.67"
currency: USD
in_stock: null
reviews_count: 8
url: https://www.desertcart.us/products/149567985-master-b401
store_origin: US
region: United States of America
---

# 4 color-coded 5ft hoses for quick, error-free connections Pressure range up to 800 PSI for precise readings 4-valve manifold for versatile diagnostics Master #B401

**Brand:** lichamp
**Price:** $215.67
**Availability:** ❌ Out of Stock

## Summary

> ❄️ Charge like a pro, cool like a boss!

## Quick Answers

- **What is this?** Master #B401 by lichamp
- **How much does it cost?** $215.67 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/149567985-master-b401)

## Best For

- lichamp enthusiasts

## Why This Product

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

## Key Features

- • **Color-Coded Efficiency Boost:** Avoid costly mistakes with vibrant hoses that speed up your workflow.
- • **Built to Last, Built for Pros:** Durable brass and aluminum construction designed to withstand heavy-duty use.
- • **Precision Pressure Monitoring:** Dual gauges cover 0-550 PSI (low) and 0-800 PSI (high) for exact system insights.
- • **User-Friendly with Pro Guidance:** Step-by-step manual ensures safe, efficient AC system renewal every time.
- • **All-in-One AC Diagnostic Powerhouse:** Seamlessly charge, evacuate, and diagnose with one pro-grade manifold set.

## Overview

The LICHAMP AC R1234YF R134A Gauge Set is a professional-grade automotive manifold gauge kit designed for R1234YF and R134A refrigerants. Featuring a 4-valve manifold with color-coded 5-foot hoses, durable brass and aluminum construction, and dual pressure gauges (0-550 PSI low, 0-800 PSI high), it enables precise freon charging, evacuation, and diagnostics. Ideal for mechanics seeking reliable, efficient AC system maintenance with easy operation guided by a comprehensive manual.

## Description

Full description not available

## Features

- Multifunctional AC Gauge Set: professional automotive air conditioning diagnostic manifold gauge set compatible with R1234YF and R134A refrigerants, perfect for AC freon charging, evacuation, diagnostic check and recovery work
- Colorful Four Valve Design: include 4 pieces extra long 5 FT and high impact hose, red (blue) hose connect with high (low) pressure quick coupler and compressor high (low) side, yellow hose connect with cans bottle, black hose connect with vacuum pump
- Complete Freon Gauge Set: (1) 4 way diagnostic gauge, (4) 5FT colored hose, (2) adjustable R1234YF quick couplers, (2) direct R134A quick couplers, (1) adjustable can tap valve, (2) tank adapter, (1) valve core remover
- Heavy Duty Tool Set: made from durable brass and aluminum for all metal parts, ideal for professional auto mechanics. Fahrenheit degree unit with easy to read instrument panel, pressure range: 0-550 PSI (blue gauge), 0-800 PSI (red gauge)
- Easy to Operate: Easy to assembly and operate design for an efficiently ac charging work, include step by step manual to help renew your ac cooling system safety and potency

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Lichamp |
| Material | Aluminum |
| Item dimensions L x W x H | 11.42 x 11.81 x 3.35 inches |
| Item Weight | 8.27 Pounds |
| UPC | 741025730694 |
| Manufacturer | Lichamp |
| Product Dimensions | 11.42 x 11.81 x 3.35 inches |
| Item Weight | 8.27 pounds |
| ASIN | B07R1M5T8G |
| Item model number | MGS1234B1 |
| Date First Available | April 20, 2019 |

## Product Details

- **Brand:** Lichamp
- **Material:** Aluminum
- **Item dimensions L x W x H:** 11.42 x 11.81 x 3.35 inches
- **Item Weight:** 8.27 Pounds
- **UPC:** 741025730694

## Images

![Master #B401 - Image 1](https://m.media-amazon.com/images/I/71dfsqbz4pL.jpg)
![Master #B401 - Image 2](https://m.media-amazon.com/images/I/81DYn8nBXOL.jpg)
![Master #B401 - Image 3](https://m.media-amazon.com/images/I/71YJRvZr4WL.jpg)
![Master #B401 - Image 4](https://m.media-amazon.com/images/I/81X44kcHyiL.jpg)
![Master #B401 - Image 5](https://m.media-amazon.com/images/I/71SyygM-ebL.jpg)

## Questions & Answers

**Q: I wasted 2 cans of R1234 before I found out the two adapters would not allow freon to enter the system. No instructions as to what the remedy is.**
A: Hi, Regarding the high and low pressure quick connector, it needs to be screwed up to the top during installation, and when it is working, it needs to be screwed down so that the internal needle presses the valve body of the car compressor interface to achieve the connection.

**Q: warranty? I purchased this kit last year and just got it out just to find out the r134 cuppers leak and the vacuum hose ends don't fit.**
A: Good luck with warranty. Yeah, it's junk.

**Q: Does this connect to 1/2" acme tank adapters?**
A: Package include 1pc tank adapter, 1/4 inch male to 1/2 inch female,  hose fitting 1/4 inch,  can tap fitting 1/4 inch, thanks for your question.

**Q: How to download the instructions that they say is on the product page?**
A: I never downloaded the Manual for this set, I googled a you tube video on how to use the set.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by R***Z on May 4, 2025*

Very good product, works great

### ⭐⭐⭐⭐⭐ Decent DIY Manifold for R1234yf
*by E***A on July 5, 2025*

Hoses are regular Right Hand treaded. Comes with coupler to attach to R1234yf can tap. Not a big deal but the fun begins where you will tighten one side of the coupler, and then accidentally loosening the other. Get a wrench or pliers to hold the opposing side. 🙂.Nice feature that each hose has an integrated plastic nut turner that you can move to either side. Comes with a purge valve and the extra vac valve is nice.Overall it got the job done. Good value.

### ⭐⭐⭐⭐ R1234YF coupler does not fit, can tap is outdated, lack of instructions
*by C***E on May 26, 2024*

It's a decent set. A couple issues: 1) the low pressure r1234yf coupler doesn't fit. The quick connect fitting is about 0.5mm too short for the vehicle low pressure shrader valve stem. I had to file it down to make it work. 2) forget about the can tap in the kit. You need to buy one that actually works. I understand the vendor probably have a bunch of such kit already made and it's not practical to replace the can tap. Why don't you just lower the price by $10. 3) the kit comes with a couple pages that shows a connection illustration and a few words on how to vacuum, charge, etc. No explanation on how the 4 ports works. This is important because for people who have been using the 3 port system, this is different.

## Frequently Bought Together

- LICHAMP AC R1234YF R134A Gauge Set, Automotive 4 Valve Manifold Gauge Compatible with R1234YF and R134A Refrigerants, Works on Car Freon Charging and Evacuation
- Lichamp Car A/C R1234YF Adapter with Self Sealing Can Tap, AC R1234 Quick Couplers Connectors Kit
- ZeroR® Genuine R1234YF in 8oz SSV Cans | 3 Cans with Zeror Service Label

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-24*