---
product_id: 58298850
title: "Mastercool (81290 Silver R134A Universal Valve Core Remover/Installer"
brand: "mastercool"
price: "₩35773"
currency: KRW
in_stock: true
reviews_count: 6
category: "Mastercool"
url: https://www.desertcart.kr/products/58298850-mastercool-81290-silver-r134a-universal-valve-core-remover-installer
store_origin: KR
region: South Korea
---

# Double-ended for R12/R134a & JRA/EATON cores Hardened steel for heavy-duty durability Proudly made/assembled in USA Mastercool (81290 Silver R134A Universal Valve Core Remover/Installer

**Brand:** mastercool
**Price:** ₩35773
**Availability:** ✅ In Stock

## Summary

> 🔧 Master every valve core job with the tool that pros swear by!

## Quick Answers

- **What is this?** Mastercool (81290 Silver R134A Universal Valve Core Remover/Installer by mastercool
- **How much does it cost?** ₩35773 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/58298850-mastercool-81290-silver-r134a-universal-valve-core-remover-installer)

## 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

- • **Built to Last:** Crafted from hardened steel shafts to withstand high torque without bending or melting.
- • **Ergonomic Grip:** Sturdy, easy-to-use handle ensures precision and control during valve core removal.
- • **Made in the USA:** Support quality craftsmanship and domestic manufacturing with every use.
- • **Trusted by Pros:** Preferred over cheaper alternatives for reliability and performance in automotive A/C systems.
- • **Universal Double-Ended Design:** Effortlessly access both small and large valve cores with one tool.

## Overview

The Mastercool 81290 is a heavy-duty, double-ended valve core remover and installer designed for R12/R134a standard and JRA/EATON large bore valve cores. Made from hardened steel and assembled in the USA, it offers durability, precision, and versatility for automotive A/C maintenance, ensuring reliable performance and long-lasting use.

## Description

Product Description Used on R12/R134a Standard and JRA/EATON Large Bore R134a Valve Cores. Ingredients Mastercool 81290 Valve Core Remover & Installer – Double-Ended Tool for R12/R134a Standard, JRA, and Eaton Large Bore Valve Cores

Review: Three Stars - ok for price
Review: This is it. MUST buy - This is the tool you need to replace both the low and high side valve cores (schrader) of your car AC system. The hole is actually deep enough to fit the spring of the larger high side valve core. The other tools do not fit, I have tried 2 other Chinesium trash tools. It's also durable and doesn't melt like the other garbage under torque. Had to use pliers to twist them but it's sturdy and high quality. Worth the extra dollars.

## Features

- STRONG, DURABLE, HEAVY-DUTY DESIGN for years of reliability
- LARGE BORE VALVE CORE REMOVER is intended for valve cores on A/C systems
- DOUBLE ENDED enables access to both large (JRA/EATON) and small (R12/R134a standard) valve cores
- EASY TO USE while also providing a sturdy grip to remove trapped valve cores
- MADE AND OR ASSEMBLED in USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000I0VKGK |
| Best Sellers Rank | 332,957 in Automotive ( See Top 100 in Automotive ) 359 in Car Engine Valves & Parts 1,253 in Tyre Valve Tools |
| Brand | Mastercool |
| Brand Name | Mastercool |
| Contains Liquid Contents? | Yes |
| Country of Origin | USA |
| Customer Reviews | 4.7 out of 5 stars 679 Reviews |
| Global Trade Identification Number | 00700376812909 |
| Included Components | valve core remover |
| Item Form | Steel |
| Item Type Name | Valve Core Remover |
| Item Volume | 1 Fluid Ounces |
| Item Weight | 0.05 Pounds |
| Item form | Steel |
| Item volume | 1 Fluid Ounces |
| Manufacturer | Mastercool |
| Material Features | Hardened Steel Shafts |
| Material feature | Hardened Steel Shafts |
| Model Number | Standard/JRA/Eaton – R12/R134a |
| Number of Items | 1 |
| Part Number | 81290 |
| Scent | Unscented |
| Size | 1 count (Pack of 1) |
| Special Features | All Purpose |
| Specific Uses For Product | Used on R12/R134a Standard and JRA/EATON Large Bore R134a Valve Cores |
| Specific uses for product | Used on R12/R134a Standard and JRA/EATON Large Bore R134a Valve Cores |
| Surface Recommendation | Alloy Steel |
| UPC | 700376812909 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** Mastercool
- **Item form:** Steel
- **Item volume:** 1 Fluid Ounces
- **Material feature:** Hardened Steel Shafts
- **Number of items:** 1
- **Scent:** Unscented
- **Special feature:** All Purpose
- **Specific uses for product:** Used on R12/R134a Standard and JRA/EATON Large Bore R134a Valve Cores
- **Surface recommendation:** Alloy Steel
- **Unit count:** 1.0 Count

## Images

![Mastercool (81290 Silver R134A Universal Valve Core Remover/Installer - Image 1](https://m.media-amazon.com/images/I/51LBTBj-RjL.jpg)
![Mastercool (81290 Silver R134A Universal Valve Core Remover/Installer - Image 2](https://m.media-amazon.com/images/I/81TDMHTjLHL.jpg)
![Mastercool (81290 Silver R134A Universal Valve Core Remover/Installer - Image 3](https://m.media-amazon.com/images/I/81LH-j6h0LL.jpg)
![Mastercool (81290 Silver R134A Universal Valve Core Remover/Installer - Image 4](https://m.media-amazon.com/images/I/81J-z5YORQL.jpg)
![Mastercool (81290 Silver R134A Universal Valve Core Remover/Installer - Image 5](https://m.media-amazon.com/images/I/81TEKlwBVXL.jpg)

## Customer Reviews

### ⭐⭐⭐ Three Stars
*by B***Y on 9 September 2017*

ok for price

### ⭐⭐⭐⭐⭐ This is it. MUST buy
*by B***E on 9 June 2023*

This is the tool you need to replace both the low and high side valve cores (schrader) of your car AC system. The hole is actually deep enough to fit the spring of the larger high side valve core. The other tools do not fit, I have tried 2 other Chinesium trash tools. It's also durable and doesn't melt like the other garbage under torque. Had to use pliers to twist them but it's sturdy and high quality. Worth the extra dollars.

### ⭐⭐ Fracaso
*by C***N on 16 October 2019*

A los tres desarmados trono.

## Frequently Bought Together

- Mastercool 81290 Valve Core Remover & Installer – Double-Ended Tool for R12/R134a Standard, JRA, and Eaton Large Bore Valve Cores
- Four Seasons 26783 Cap & Valve Air Conditioning System Seal Kit
- ROSY PIXEL Diking R134A R12 A/C HVAC Air Conditioner Schrader Valve Stem Core Remover Tool (Remover Tool)

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**Shop now:** [https://www.desertcart.kr/products/58298850-mastercool-81290-silver-r134a-universal-valve-core-remover-installer](https://www.desertcart.kr/products/58298850-mastercool-81290-silver-r134a-universal-valve-core-remover-installer)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-06-19*