---
product_id: 58298850
title: "(81290 Silver R134A Universal Valve Core Remover/Installer"
brand: "mastercool"
price: "฿1516"
currency: THB
in_stock: true
reviews_count: 6
category: "Mastercool"
url: https://www.desertcart.co.th/products/58298850-81290-silver-r134a-universal-valve-core-remover-installer
store_origin: TH
region: Thailand
---

# Double-ended for dual valve cores Heavy-duty hardened steel build Proudly made/assembled in USA (81290 Silver R134A Universal Valve Core Remover/Installer

**Brand:** mastercool
**Price:** ฿1516
**Availability:** ✅ In Stock

## Summary

> 🔧 Master every valve core job with the tool pros trust!

## Quick Answers

- **What is this?** (81290 Silver R134A Universal Valve Core Remover/Installer by mastercool
- **How much does it cost?** ฿1516 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/58298850-81290-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 for unmatched durability under torque
- • **Precision Grip:** Ergonomic design ensures a sturdy hold to remove even trapped valve cores
- • **Made in the USA:** Support quality and reliability with American-made craftsmanship
- • **Dual-Ended Efficiency:** Switch seamlessly between large bore and standard valve cores without swapping tools
- • **Universal Compatibility:** Effortlessly handles R12, R134a, JRA & Eaton valve cores with one tool

## Overview

The Mastercool 81290 is a rugged, double-ended valve core remover/installer designed for automotive A/C systems. Compatible with both standard R12/R134a and large bore JRA/Eaton valve cores, it features hardened steel construction for durability and a grip-focused design for ease of use. Proudly made in the USA, this tool is a must-have for professionals and enthusiasts seeking reliable, long-lasting performance.

## 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 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 | 522,320 in Automotive ( See Top 100 in Automotive ) 682 in Car Engine Valves & Parts 1,648 in Tyre Valve Tools |
| Brand Name | Mastercool |
| Contains Liquid Contents? | Yes |
| Country of Origin | USA |
| Customer Reviews | 4.7 4.7 out of 5 stars (675) |
| 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 |
| Manufacturer | Mastercool |
| Material Features | Hardened Steel Shafts |
| Number of Items | 1 |
| Scent | Unscented |
| Special Features | All Purpose |
| 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

![(81290 Silver R134A Universal Valve Core Remover/Installer - Image 1](https://m.media-amazon.com/images/I/51LBTBj-RjL.jpg)

## Available Options

This product comes in different **Model** options.

## Customer Reviews

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

ok for price

### ⭐⭐⭐⭐⭐ Review
*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.

### ⭐⭐ Review
*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.co.th/products/58298850-81290-silver-r134a-universal-valve-core-remover-installer](https://www.desertcart.co.th/products/58298850-81290-silver-r134a-universal-valve-core-remover-installer)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-23*