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Flapper Assembly for American Standard Cadet 3 Toilet 738920-0070A

Off white hard plastic flapper with bright white rubber gasket with beaded stainless chain.
Off white hard plastic flapper with bright white rubber gasket with beaded stainless chain.
Off white hard plastic flapper with bright white rubber gasket with beaded stainless chain.
Off white hard plastic flapper with bright white rubber gasket with beaded stainless chain.

chat iconWHAT 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

$22.87

 

The American Standard 738920-0070A is a 3-inch toilet flapper assembly designed specifically for Cadet 3 model toilets and some other compatible American Standard one-piece toilet models. This replacement part is designed to fix common issues like a running toilet by ensuring a tight seal.

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: 14120 Category: Tag:

Is a phantom-flushing or constantly leaking toilet driving up your water bill? The American Standard Cadet 3 Toilet Flapper Assembly is the ultimate, budget-friendly DIY toilet repair solution designed to completely restore your toilet’s efficiency in under five minutes.

 

738920-0070A

 

  • Toilet flapper assembly, including a flapper and chain.
  • Constructed of durable plastic with a silicone seal to prevent blistering from chlorine exposure.
  • Specific models include 2403012, 2403500, 2403800, and 2403850.
  • 3″ Rated for 1.6 gallons per flush (GPF) systems.

Common questions about this product

Will this item replace the original OEM part? chevron-icon

Yes, this aftermarket part will replace your OEM 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…

“Sent Noel’s plumbing and image of what was needed, not being able to find it. They had it sent to me within a week and fitment was perfect. 👍 ”
-Lorenzo H.
03/12/2026
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