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Newport Brass 1-103 Replacement Stop Valve Assembly

Bright brass top with grey plastic base with black rubber o-rings and stainless steel filter.
Newport Brass 1-103 Replacement Stop Valve Assembly - Image 2
Newport Brass 1-103 Replacement Stop Valve Assembly - Image 3

chat iconWHAT OUR CUSTOMERS SAY…

“This place rocks! I have replaced two parts for an old Gerber faucet in the laundry tub. After the spout was leaking, I could not find the right washers anywhere. I had to replace the whole spout, which they had in stock, and it was priced competitively. Now, not a drop leaks. ”
-John D.
02/03/2024

$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…

“Do you need a vintage plumbing part and nobody seems to be able to find it in your area? Save yourself time and hassle and go to Noel's Plumbing website. You can text them a photo of the part and they will find it in minutes and give you the link to order it, all at a competitive price. My plumbers seem incapable of doing this and hand the job off to me. What can you do? But Noel's always has the 1930s parts I need or the aftermarket part that will get the job done. If I need it fast I can get it in 2-3 days from them and they know exactly what they are doing. It's a good old-fashioned plumbing store with all the parts you could possibly need and people who know how to get them. The service is top level. The staff pick up the phone after one or two rings. They are polite and KNOWLEDGABLE. I'm so tired of dealing with folks who can't find a chicken in a hen house. LOL. ”
-Bry W.
06/23/2026
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