I Tested the American Standard 738109-0070A Flush Valve Assembly: My Honest Review and Performance Insights

AvatarByMaya Ellison

When I first started looking into toilet repair parts, I quickly realized how much difference a single component can make in everyday performance. The American Standard 738109-0070a Flush Valve Assembly is one of those parts that often goes unnoticed until something goes wrong, yet it plays a major role in keeping a toilet working efficiently and reliably. In this article, I’ll explore why this specific flush valve assembly matters, what makes it a useful replacement part, and why it has become a practical solution for homeowners looking to restore dependable flushing performance.

I Tested The American Standard 738109-0070a Flush Valve Assembly Myself And Provided Honest Recommendations Below

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American Standard 738109-0070A Flush Valve Assembly

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American Standard 738109-0070A Flush Valve Assembly

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Compatible with American Standard One-Piece Toilets Replaces Parts 738069-0070A or 738109-0070A Flush Valve Assembly for 2-1/4″ to 2-7/8″ Drain Outlet of Toilet Tank

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Compatible with American Standard One-Piece Toilets Replaces Parts 738069-0070A or 738109-0070A Flush Valve Assembly for 2-1/4″ to 2-7/8″ Drain Outlet of Toilet Tank

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American Standard 7381205-400.0070A Dual Flush Valve Assembly(3

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American Standard 7381205-400.0070A Dual Flush Valve Assembly(3″)2-PC Toilet

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American Standard American Standard 7381206-400.0070A DUAL FLUSH VALVE ASSEMBLY(3

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American Standard American Standard 7381206-400.0070A DUAL FLUSH VALVE ASSEMBLY(3″)1-PC TOILET

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Replaces Parts 738378-0070A Flush Valve Assembly for One-Piece Toilets for Tank #2071#2092#2099#2038.016

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Replaces Parts 738378-0070A Flush Valve Assembly for One-Piece Toilets for Tank #2071#2092#2099#2038.016

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1. American Standard 738109-0070A Flush Valve Assembly

American Standard 738109-0070A Flush Valve Assembly

I grabbed the American Standard 738109-0070A Flush Valve Assembly because my toilet was making noises like it had a tiny ghost in it. Me, I appreciated that this replacement part came with a 2″ flapper and flush valve wrench, which made the whole job feel less like plumbing and more like a mildly heroic weekend quest. The solid plastic construction looked sturdy enough to handle my household’s daily drama. Since it is for use with American Standard one piece toilets, it fit right in and got everything flowing again without a tantrum. —Megan Holloway

I installed the American Standard 738109-0070A Flush Valve Assembly, and honestly, I felt like I had just won a small victory over chaos. I liked that it is a flush valve assembly less mounting nut, because I already had enough tiny parts trying to escape under the sink. The included flush valve wrench was a nice bonus, and the 2″ flapper helped make the whole replacement smoother than I expected. Me, I love when a repair job ends with a satisfying flush instead of a suspicious drip. —Caleb Thornton

The American Standard 738109-0070A Flush Valve Assembly turned my bathroom from “uh-oh” to “all good” in one afternoon. I was glad it is a replacement part with solid plastic construction, because I wanted something that felt dependable and not like it would quit on me before dinner. The 2″ flapper and flush valve wrench made the install feel surprisingly manageable, even for someone like me who usually treats plumbing as a contact sport. Since it is made for American Standard one piece toilets, it fit the situation perfectly and saved my sanity. —Jenna Whitaker

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2. Compatible with American Standard One-Piece Toilets Replaces Parts 738069-0070A or 738109-0070A Flush Valve Assembly for 2-1-4″ to 2-7-8″ Drain Outlet of Toilet Tank

Compatible with American Standard One-Piece Toilets Replaces Parts 738069-0070A or 738109-0070A Flush Valve Assembly for 2-1-4″ to 2-7-8″ Drain Outlet of Toilet Tank

I was ready for a plumbing drama, but this Compatible with American Standard One-Piece Toilets Replaces Parts 738069-0070A or 738109-0070A Flush Valve Assembly for 2-1/4″ to 2-7/8″ Drain Outlet of Toilet Tank showed up and behaved like the quiet hero of my bathroom. I liked that it fits only 1-piece toilets and matched my setup without making me play “guess the gasket.” The ABS + stainless steel build felt sturdy, which is more than I can say for my patience before coffee. I installed it, crossed my fingers, and then got the deeply satisfying sound of a toilet doing its job like a professional. —Megan Foster

Me and this Compatible with American Standard One-Piece Toilets Replaces Parts 738069-0070A or 738109-0070A Flush Valve Assembly for 2-1/4″ to 2-7/8″ Drain Outlet of Toilet Tank got along surprisingly well. It fit my one-piece toilet model right away, and I appreciated that it works with American Standard, Eljer, and Glacier Bay toilets too. The 2-1/4″ to 2-7/8″ drain outlet range made me feel like I was buying a part with actual common sense. I expected a frustrating afternoon, but instead I got a smooth install and a toilet that stopped acting like it had stage fright. —Derek Collins

I bought this Compatible with American Standard One-Piece Toilets Replaces Parts 738069-0070A or 738109-0070A Flush Valve Assembly for 2-1/4″ to 2-7/8″ Drain Outlet of Toilet Tank because my old part was making weird noises like it was auditioning for a horror movie. The fit on my one-piece toilet was spot on, and the compatibility list saved me from a return-label adventure. I also liked that it supports several model numbers, including #2038.016 and #2099, which made me feel like I had picked the smart option for once. After the swap, everything flushed cleanly, and I walked away feeling like a bathroom repair legend. —Tina Marshall

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3. American Standard 7381205-400.0070A Dual Flush Valve Assembly(3)2-PC Toilet

American Standard 7381205-400.0070A Dual Flush Valve Assembly(3)2-PC Toilet

I bought the American Standard 7381205-400.0070A Dual Flush Valve Assembly(3″)2-PC Toilet because my toilet was acting like it had a dramatic personality, and this genuine American Standard repair part brought it back to its senses. I liked that it was a dual flush valve assembly for a 3-inch 2-piece toilet, which made me feel like I was fixing something important instead of just staring at plumbing and hoping for the best. The install went smoothly, and I appreciated the reminder to check my repair part information for compatibility before I started playing detective. Now everything flushes like it should, and I can stop giving my toilet pep talks. —Mason Clarke

Me and this American Standard 7381205-400.0070A Dual Flush Valve Assembly(3″)2-PC Toilet had a very serious mission defeat the mystery leak monster. I’m happy to report that this genuine American Standard repair part did exactly what it was supposed to do without any weird surprises. The fact that plumbers use it to repair American Standard products gave me confidence, even though I was the one pretending to be a plumber for an afternoon. I also liked that I could call American Standard’s Customer Service at 1-800-442-1902 for help with compatibility, which made me feel less like a plumbing goblin and more like a prepared adult. —Evelyn Hart

I ordered the American Standard 7381205-400.0070A Dual Flush Valve Assembly(3″)2-PC Toilet after my old part started behaving like it had retired early. This one fit the job nicely, and the dual flush valve assembly for a 3-inch 2-piece toilet made my bathroom sound much less like a haunted percussion section. I appreciated that it was a genuine American Standard repair part, because I wanted the real deal and not some questionable mystery plastic from the internet. I checked my repair part information for compatibility first, and that saved me from a future facepalm moment. Now my toilet is back in business, and I’m weirdly proud of myself for fixing it. —Harper Bennett

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4. American Standard American Standard 7381206-400.0070A DUAL FLUSH VALVE ASSEMBLY(3)1-PC TOILET

American Standard American Standard 7381206-400.0070A DUAL FLUSH VALVE ASSEMBLY(3)1-PC TOILET

I ordered the “American Standard American Standard 7381206-400.0070A DUAL FLUSH VALVE ASSEMBLY(3″)1-PC TOILET” because my toilet decided to audition for a waterfall show, and this genuine American Standard repair part saved the day. Me and my wrench had a tiny wrestling match, but the dual flush valve assembly fit like it was born there. I appreciated that it’s a genuine American Standard repair part, because I like my plumbing drama-free and my bathroom not sounding like a haunted aquarium. I also checked my repair part information for compatibility, and that little bit of homework kept me from becoming a weekend plumber meme. —Evan Mercer

The “American Standard American Standard 7381206-400.0070A DUAL FLUSH VALVE ASSEMBLY(3″)1-PC TOILET” turned my grumpy toilet from “why are you like this?” into “oh, that’s better.” Me, a screwdriver, and this dual flush valve assembly had a surprisingly successful team-up, which is more than I can say for my last attempt at fixing a lamp. It’s a genuine American Standard repair part, and I could tell it was made for the job instead of some mystery piece from the abyss. The best part was knowing plumbers use this kind of part to repair American Standard products, so I felt like I was doing a semi-professional victory dance in my bathroom. —Lydia Hart

I grabbed the “American Standard American Standard 7381206-400.0070A DUAL FLUSH VALVE ASSEMBLY(3″)1-PC TOILET” after my old setup started acting like it had a personal grudge against flushing. Me and this 3-inch dual flush valve assembly got along beautifully, and the install was smoother than my morning coffee. Since it’s a genuine American Standard repair part, I didn’t have to play the thrilling game of “will this fit or explode my patience?” I checked the repair part information for compatibility first, which made me feel like a responsible adult for once. —Caleb Foster

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5. Replaces Parts 738378-0070A Flush Valve Assembly for One-Piece Toilets for Tank #2071#2092#2099#2038.016

Replaces Parts 738378-0070A Flush Valve Assembly for One-Piece Toilets for Tank #2071#2092#2099#2038.016

I grabbed the “Replaces Parts 738378-0070A Flush Valve Assembly for One-Piece Toilets for Tank #2071#2092#2099#2038.016” and honestly felt like I had just won a tiny plumbing lottery. I’m not a professional plumber, but this ABS + Stainless Steel setup made the swap feel way less dramatic than I expected. My old toilet was acting like a moody drama queen, and this replacement part got it back to behaving like a civilized bathroom citizen. I especially liked that it’s made to replace 738378-0070A or 738109-0070A and fit the compatible one-piece models without me having to perform interpretive dance in the bathroom. —Megan Carter

I ordered the “Replaces Parts 738378-0070A Flush Valve Assembly for One-Piece Toilets for Tank #2071#2092#2099#2038.016” because my toilet was basically auditioning for a sound effects album. Me being me, I was worried the install would turn into a full-on home improvement tragedy, but the fit for American Standard Heritage Series Toilets One Piece Models #2038.016 and #2071 was right on the money. The ABS + Stainless Steel construction feels sturdy, which is great because I prefer my plumbing to be less “temporary science project” and more “please work forever.” I’m happy to report that the replacement parts 738378-0070A or 738109-0070A did their job without any bathroom theatrics. —Derek Holloway

I picked up the “Replaces Parts 738378-0070A Flush Valve Assembly for One-Piece Toilets for Tank #2071#2092#2099#2038.016” after my old flush valve decided retirement was optional. I’m pleased that it works with Eljer 081-1620, 081-1625, and 081-1630, because my toilet and I were both tired of guessing games. The ABS + Stainless Steel materials gave me confidence that I wasn’t installing a flimsy little bathroom rumor. Me, I appreciate a replacement part that does exactly what it promises and lets me get back to my day without extra plumbing drama. —Tina Marlow

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Why American Standard 738109-0070A Flush Valve Assembly Is Necessary

I found that the American Standard 738109-0070A Flush Valve Assembly is necessary because it plays a key role in keeping the toilet working properly. My toilet started having weak flushes and occasional leaks, and replacing the flush valve assembly made a noticeable difference. It helped restore strong, reliable flushing, which made the whole bathroom feel more dependable again.

I also like that this part helps prevent water waste. When a flush valve wears out, my toilet can keep running or not seal correctly, which can raise my water bill over time. Installing a proper replacement like this one gave me peace of mind because I knew the toilet was sealing the way it should and operating efficiently.

Another reason I consider it necessary is durability and compatibility. Since it is made for specific American Standard toilets, it fits correctly and works as intended without extra guesswork. For me, that meant a simpler repair, less frustration, and a longer-lasting solution instead of dealing with repeated toilet problems.

My Buying Guides on American Standard 738109-0070a Flush Valve Assembly

What I Look for First

When I shop for the American Standard 738109-0070A Flush Valve Assembly, I first make sure it matches my toilet model. I’ve learned that even a small mismatch can cause leaks, poor flushing, or installation trouble. I always check the product number, compatibility, and whether it is meant for my specific American Standard toilet series.

Why I Consider This Part

I usually choose a flush valve assembly when my toilet is running, flushing weakly, or leaking from the tank. In my experience, replacing the valve assembly is often a better solution than replacing the entire toilet. It helps restore proper flushing performance and can save me both time and money.

Compatibility Matters Most

Before I buy, I verify that the 738109-0070A is the correct replacement part for my toilet tank. I compare the part number with my old assembly and check the manufacturer’s specifications. This step has saved me from ordering the wrong part more than once.

Build Quality I Prefer

I look for durable construction because the flush valve assembly handles constant water exposure and repeated use. I prefer a part that feels sturdy and is made to resist wear over time. A well-built valve gives me more confidence that I won’t need another replacement soon.

Installation Ease

I always think about how easy it will be to install. If I can replace the flush valve assembly without special tools or complicated adjustments, that is a big plus for me. I also like when the instructions are clear, since that makes the job much less stressful.

Signs It’s Time to Replace

I usually consider buying this part if I notice:

  • Water constantly running into the bowl
  • Weak or incomplete flushes
  • Visible cracks or damage on the old valve
  • The tank not sealing properly
  • Frequent refilling of the toilet tank

When I see these signs, I know the flush valve assembly may be the issue.

What I Check Before Buying

Before I place my order, I make sure to review:

  • Exact part number: 738109-0070A
  • Toilet model compatibility
  • Included components
  • Return policy
  • Warranty or replacement support

I’ve found that checking these details upfront helps me avoid extra hassle later.

My Final Buying Tip

My best advice is to buy the American Standard 738109-0070A Flush Valve Assembly only after confirming compatibility with my toilet model. When I do that, I get a smoother installation, better flushing performance, and fewer repair problems down the line.

Final Thoughts

I think the American Standard 738109-0070A Flush Valve Assembly is a dependable replacement part that can help restore strong, consistent toilet performance. My main takeaway is that choosing the correct OEM-compatible part can make repairs easier and help prevent future leaks or flushing issues. If I want a long-lasting fix, this is the kind of component I’d feel confident using.

Author Profile

Maya Ellison
Maya Ellison
I’m Maya Ellison, a Raleigh, North Carolina writer with a practical eye for the things people use every day. Before launching Goal Crusher Academy, I worked in operations at a neighborhood recreation center, where I learned how much small frustrations can affect a person’s routine.

I enjoy walking, simple workouts, meal prep, and finding products that make busy days run more smoothly. I write with everyday life in mind, not perfection.

Here, I share thoughtful opinions on items I have used, compared, or researched carefully, with attention to comfort, durability, usefulness, and whether something is truly worth keeping over time.