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Versatile Valve Core Tool for R12 and R134a Systems
The Mastercool 81290 Valve Core Remover & Installer is a compact, dual-ended tool designed to service R12 and R134a systems when not under pressure. This versatile tool features hardened steel shafts to handle Standard, JRA, and Eaton large bore valve cores, giving technicians broad compatibility in a single, pocket-sized tool.
It’s the perfect solution for system recovery, repair, or retrofit tasks where refrigerant has already been evacuated. Built with a durable steel body and precision-fit shafts, the 81290 is a technician favorite for quick valve core servicing.
What's Included:
- Dual-ended valve core remover/installer tool
- Hardened steel shafts for Standard, JRA, and Eaton large bore cores
Mike
Reviewed in the United States on August 8, 2024
worked FoRd tough.
Robert Mcbride
Reviewed in the United States on August 30, 2024
I bought this because another one I bought with a valve kit broke off, cheap steel I guess. This one is strong.
Joy H.
Reviewed in the United States on August 22, 2024
ruff shape.
Jo in the Midwest
Reviewed in the United States on July 27, 2024
I noticed a leak in my car's AC low side connection. I ordered the tool and got it the next day. It took about 30 seconds to reseat the schrader valve. God only knows how many $$$ a repair shop would have charged.
MigoCustoms
Reviewed in the United States on July 31, 2023
The media could not be loaded.
K S
Reviewed in the United States on July 3, 2023
The mastercool schrader valve tool is very sturdy and does the job it was intended to do.
Better Than Dave
Reviewed in Canada on June 9, 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.
Brendon Ferrin
Reviewed in the United States on June 24, 2023
After fighting with this valve for 2 days I finally got this tool in the mail. As you can see the valve had been completely tore up by lesser quality valve tools that either broke off or stripped out when force was applied.I put this tool on, tapped it with a mallet to seat it on the valve, and used a pair of pliers to turn it. It saved me from having to run a new ac line or have a shop do it for hundreds of dollars! It’s great quality and appears it will hold up to just about anything. Worth the xtra premium
No Time Reader
Reviewed in Canada on August 5, 2020
It’s a good strong little tool I use that for taking out the low side valve stem on my AC
Ricardo
Reviewed in Mexico on July 1, 2020
Había buscado esta herramienta forjada , porque la mayoría son muy endebles y se dañan pronto , solo le falta que sea un poco mas larga para poderla manipular mejor , fuera de eso muy bien.
Pat S
Reviewed in the United States on December 30, 2020
The master cool (81290) for R134aworked perfect.It has two sizes for the ac shrader valve,a small size on one end, and a large size on the other, end and it isfixed in the middle to get a good grip on it.At a very good price. I would surely recommend the master cool. (81290) For 134a
Charly Brown
Reviewed in Mexico on October 16, 2019
A los tres desarmados trono.
Barry
Reviewed in the United Kingdom on September 9, 2017
ok for price
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