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Newport Brass 1-103 Replacement Stop Valve Assembly

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“Super helpful team, thank you!!! ”
-Emma G.
04/08/2024

$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…

“I spent the balance of 3 days looking locallyfor a replacement head for our Kitchen sink...only to find these guys with an exact fit and finish and lower than market pricing...I immediately ordered (an awesome website with smooth cart checkout). 20 minutes later I find a blown out gasket/ring that I was able to replace, and avoid having to replace entire spray head. I text there support line ( while the store was closed!) Requesting the order to be canceled. Within minutes and without hesitation or questions they had refunded my card and canceled the order. They have one of the largest online inventories, notably stocking harder to locate stuff and boasting a separate text line dedicated to recieve customer pics of parts/gear to ensure we are getting exactly what we need. Enough said. Bring your future plumbing problems/needs here and trust you will be taken care of...I know I will... @ Noels, thanks for continuing a tradition of honorable business practice, in a world that is littered with allot less... ”
-John M.
03/14/2026