---
product_id: 42972353
title: "Mastercool 6 CFM Single Stage Vacuum Pump 90066-B"
brand: "mastercool"
price: "HK$3554"
currency: HKD
in_stock: true
reviews_count: 8
category: "Mastercool"
url: https://www.desertcart.hk/products/42972353-mastercool-6-cfm-single-stage-vacuum-pump-90066-b
store_origin: HK
region: Hong Kong
---

# 6 CFM airflow power 80 microns ultimate vacuum Upgraded seals for max vacuum Mastercool 6 CFM Single Stage Vacuum Pump 90066-B

**Brand:** mastercool
**Price:** HK$3554
**Availability:** ✅ In Stock

## Summary

> 🚀 Suck it up like a pro — Mastercool’s vacuum pump means zero downtime!

## Quick Answers

- **What is this?** Mastercool 6 CFM Single Stage Vacuum Pump 90066-B by mastercool
- **How much does it cost?** HK$3554 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/42972353-mastercool-6-cfm-single-stage-vacuum-pump-90066-b)

## Best For

- mastercool enthusiasts

## Why This Product

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

## Key Features

- • **Deep 80 Micron Vacuum:** Achieve professional-grade vacuum levels with ease
- • **Durable Aluminum Build:** Lightweight yet rugged for long-lasting performance
- • **Powerful 6 CFM Flow Rate:** Rapid evacuation for efficient A/C servicing
- • **Convenient Oil Management:** Large sight glass and removable ports for hassle-free maintenance
- • **Upgraded Seals & Precision Machining:** Maximize vacuum retention and extend pump life

## Overview

The Mastercool 6 CFM Single Stage Vacuum Pump 90066-B delivers a robust 6 cubic feet per minute airflow and an ultimate vacuum of 80 microns, engineered with precision-machined aluminum components and upgraded seals to ensure maximum efficiency and durability. Designed for professional A/C service, it features easy oil level monitoring and maintenance ports, making it a reliable, long-lasting tool for demanding HVAC applications.

## Description

A good quality vacuum pump is an integral tool for complete A/C service. Mastercool vacuum pumps are durable and time tested. They stand up to the most grueling conditions and will provide years of reliable service. Mastercool’s 6 CFM, single stage vacuum pump is suitable for a wide variety applications with an ultimate vacuum of 80 microns, 1/3 HP pump motor and 18 oz oil capacity.

Review: It does suck, vaccum wise... - This thing sure sucks and allowed a vaccum to be pulled for my A/C system repair and charge. Work well.
Review: Great vacuum pump - I have been using these pumps for many years, they work great to get down to a deep vacuum. I use multiple of these vacuums with 1/2 vacuum hoses on one system. Pulls down to 500 microns before you know it. I use mine for a year and then retire them with a new one, and at the price point it is worth it. The pumps still work after a year and you can flip the apex seals in the pump to get longer life out of them.

## Features

- 6 CFM free air displacement with ultimate vacuum of 80 microns
- Refined cartridge machining process creates an improved surface finish extending the longevity of the pump life
- Upgraded seals insure maximum vacuum
- Easily removable vapor discharge/oil fill port
- Large oil level sight glass with max/min level indicator

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01H5O66QA |
| Best Sellers Rank | #99,332 in Automotive ( See Top 100 in Automotive ) #35 in Air Conditioning Vacuum Pumps |
| Brand | Mastercool |
| Brand Name | Mastercool |
| Color | Silver |
| Customer Reviews | 4.2 out of 5 stars 285 Reviews |
| Flow Rate | 6 Cubic Feet Per Minute |
| Global Trade Identification Number | 00700376113594 |
| Included Components | VACUUM PUMP |
| Item Height | 7 inches |
| Item Type Name | 6 CFM VACUUM PUMP |
| Item Weight | 21 Pounds |
| Manufacturer | Mastercool |
| Manufacturer Warranty Description | MANUFACTURERS WARRANTY |
| Material | Aluminum |
| Material Type | Aluminum |
| Model Number | 90066-B |
| Power Source | Corded Electric |
| Product Style | 6 CFM, Single Stage |
| Style | 6 CFM, Single Stage |
| UPC | 700376113594 791511182889 |
| Voltage | 12 Volts |

## Product Details

- **Brand:** Mastercool
- **Color:** Silver
- **Material:** Aluminum
- **Style:** 6 CFM, Single Stage
- **Power Source:** Corded Electric
- **Item Weight:** 21 Pounds
- **Maximum Flow Rate:** 6 Cubic Feet Per Minute
- **Voltage:** 12 Volts
- **Global Trade Identification Number:** 00700376113594
- **Manufacturer:** Mastercool

## Images

![Mastercool 6 CFM Single Stage Vacuum Pump 90066-B - Image 1](https://m.media-amazon.com/images/I/61JZHP9b10L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ It does suck, vaccum wise...
*by P***Y on October 5, 2025*

This thing sure sucks and allowed a vaccum to be pulled for my A/C system repair and charge. Work well.

### ⭐⭐⭐⭐⭐ Great vacuum pump
*by A***G on June 4, 2021*

I have been using these pumps for many years, they work great to get down to a deep vacuum. I use multiple of these vacuums with 1/2 vacuum hoses on one system. Pulls down to 500 microns before you know it. I use mine for a year and then retire them with a new one, and at the price point it is worth it. The pumps still work after a year and you can flip the apex seals in the pump to get longer life out of them.

### ⭐⭐⭐⭐ This is huge!
*by J***Y on May 8, 2025*

It works but this thing is huge and heavy. Wish I bought the little Robbin Air one. Inexpensive but massive in size. Probably better than harbor freight, maybe not.

## Frequently Bought Together

- Mastercool 6 CFM Single Stage Vacuum Pump 90066-B
- Mastercool 98210-A Electronic Refrigerant Scale, Black
- Mastercool 69110 Automotive A/C Recovery System – SAE J2810 Certified, 30 lb DOT Tank, 1/2 HP Oil-Less Compressor, Automatic Shut-Off, Compatible with R134a, R12, R22, R410A

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**Shop now:** [https://www.desertcart.hk/products/42972353-mastercool-6-cfm-single-stage-vacuum-pump-90066-b](https://www.desertcart.hk/products/42972353-mastercool-6-cfm-single-stage-vacuum-pump-90066-b)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-29*