Moen 103674 Thermostatic Cartridge

“Moen 1225 Magnum Single Handle Cartridge for Lavatory and Shower Faucets” has been added to your cart. View cart

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

WHAT OUR CUSTOMERS SAY…

“This place is amazing. I live in San Antonio, Texas and there are a few plumbing stores with vintage parts but they never have what I need and the ordering process takes them weeks. I found a rare part at Noels by reverse image search but they will do it for you. I've used them 3 times. Their agents are knowledgable and polite. They will find you the same part or the after market part and get you going on your way. They have 2-3 day shipping. My house was built in the 30's and they know exactly what the after market parts are that I need. I save money and time going to them. I sure wish they were in San Antonio! I will just go directly to Noel's next time - they are LEGENDS! ”

-BP W.

06/21/2026

$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.

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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.