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Moen 103674 Thermostatic Cartridge

White plastic cartridge with brass top black rubber o-rings and metal spring.
White plastic cartridge with brass top black rubber o-rings and metal spring.
White plastic cartridge with brass top black rubber o-rings and metal spring.
White plastic cartridge with brass top black rubber o-rings and metal spring.

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“Y'all are amazing. I live in Texas and it's faster to order express from Noel's than go to local parts stores. Customers can text Noel's a picture of the part they need and Noel's will find that part or the equivalent and text the link. They have 2-3 day shipping available. The staff answers the phone quickly, politely and they know their stuff! The unit I needed plumbing parts for was built in the 30s. No matter, Noels has me covered. I highly recommend them. Thank you Noel's for your efficient, old school excellence combined with current technology! You have saved me so much time, money, and aggravation! A++++++ ”
-Thalia,
07/03/2026

$358.27

 

The Moen 103674 is a replacement thermostatic cartridge kit specifically designed for the Moen 1/2″ ExactTemp valve system. This cartridge is used to maintain a precise water temperature in high-end shower or vertical spa configurations.

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: 910367 Category: Tag:

Restore the precise, comfortable temperature control of your shower with the Genuine Moen 103674 Thermostatic Cartridge. Designed specifically for Moen ExactTemp 1/2″ thermostatic tub and shower rough-in valves (models 3301 and 3321), this replacement cartridge ensures seamless, reliable performance, eliminating temperature fluctuations.

 

103674

 

  • Primarily for the 3301 and 3321 ExactTemp rough-in valves, which were introduced in 2000 and retired in 2006.
  • Works with the Moen Asceri 1/2″ ExactTemp Vertical Spa systems.

 

Common questions about this product

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

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.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“After trying all over my area, I couldn't find the part for the faucet in my older house. The part I needed was found on the first try on their website and ordering was very easy. It was after hours, but someone responded to my text right away. The part was shipped the next business day. After putting the new part in the faucet works better than it has for years! ”
-Mark B.
06/25/2026
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