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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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“Order received and installed. Thank you very much (spoken mentally in my best Elvis voice). Really is nice to know that there is still a business out there that's got their act together! Appreciate the quick service and correct parts shipping. Thanks again.. jP ”
-Jack P.
04/02/2026

$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, noelsplumbingsupply@fuse.net, 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.

 

 

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-Danielle E.
03/25/2026