American Standard Flushvalve 3174-0070A

“Actuating Unit for American Standard Toilet 33642-0070A” has been added to your cart. View cart

Grey plastic flush valve body with blue gasket green rubber flapper black plastic nut and white plastic tool.

WHAT OUR CUSTOMERS SAY…

“Love Noel's Plumbing Supply! They are one of my favorite oddball plumbing parts purveyors. As a professional plumber, I rely on sites like Noel's to keep antique and rare fixtures alive. My customers and I are so grateful! ”

-Danielle E.

03/25/2026

$77.27

The American Standard 3174.105-0070A is an OEM universal replacement flush valve assembly designed for Champion 4 and other Champion line two-piece toilets. It features a large 4-inch diameter designed to eliminate clogs and provide a powerful, high-performance flush.

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.

Share on:

American Standard Champion 4 Toilet Universal Replacement Flush Valve

3174.105-0070A 7381983-400-007 3174-0070A

Universal replacement part for Champion 4 flushing system
For use with any champion line of two piece toilet
Replaces Parts 3174.104-0070A, 3174.102-0070A & 3174.002-007A

Customer submitted images.

Common questions about this product

Yes, this is the OEM recommended part.

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.

WHAT OUR CUSTOMERS SAY…

“Just before an event, we had a 9 7/8" round drain cover snap in half. It was an odd size and Noel's was the only place that seemed to have one that would fit. We couldn't leave the hole exposed during the event, and Noel's was kind enough to make sure it was overnighted to us. Their effort was truly appreciated and the cover fit perfectly! I highly recommend them! ”

-Linda C.

03/27/2026