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Newport Brass 1-103 Replacement Stop Valve Assembly

chat iconWHAT OUR CUSTOMERS SAY…

“These people were extremely helpful in taking me through replacing a 25 year old hard water frozen cartridge on my Philrich sink faucet. They were able to identify the correct part I needed from a photo I sent (I had it figured out wrong). I was pleasantly surprised they had an obscure part like this, but they also told me how to extract the old one when I couldn’t get it out. They said to unscrew it after I had concluded from YouTube the old cartridge was supposed to just slide out. It threaded out as they said and saved me buying a cartridge extractor and a hernia. The whole experience has been excellent. ”
-Pete L.
03/10/2026

$71.27

 

The Newport Brass 1-103 Replacement Check Stop Valve Assembly is for use with Newport Brass tub, shower, and 3/4″ thermostatic valve systems.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, asknoel@noelsplumbingsupply.com, or via the text widget on this screen.

SKU: 91103 Category: Tag:

Don’t let a dripping faucet or a tricky temperature imbalance disrupt your day. The Newport Brass 1-103 Check Valve and Stop Valve Assembly is a DIY solution Engineered as a direct replacement component for the 3/4″ Thermostatic 1-540 Valve, this high-quality brass stop is a straight forward repair with household tools.

 

1-103

 

  • Check stop / stop valve assembly / check valve stem (OEM #1-103, Cross-reference #400791)
  • Allows you to shut off the water supply locally right at the valve body when you need to change or service the primary thermostatic cartridge.

Common questions about this product

Is this the correct item for my application? chevron-icon

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

 

We will make sure you have the right part.

 

 

Will this item replace the original OEM part? chevron-icon

Yes, this aftermarket part will replace your OEM part. 

chat iconWHAT OUR CUSTOMERS SAY…

“Wow!!!!! I'm so impressed. Y'all have a customer for life now. Thank you! ”
-Ernestine P
10/19/2022