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American Standard Toilet Fill Valve, Universal 400A Tank Repair Part

Based on 1,819 reviews
Condition: New
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$20.14
Save $4.85 was $24.99

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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Nov 2
Order within 5 hours and 46 minutes

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At a glance

Condition
New
Model
7381A
Dimensions
12.02 x 2.95 x 2.95 in
Weight
0.16 oz
Color
No Finish
Material
Plastic
Size
10.00 in wide x 3.00 in tall x 3 in deep
In the box
valveshank washerlockcoupling nutscoupling washerrefill tube and refill tube clip
Warranty
“*1 year Limited warranty from date of purchase”

Features 5

  • American Standard universal fill valve that will hold up in high-use areas, making it perfect for most applications
  • Universal replacement fill valve includes valve, shank washer, lock, coupling nuts, coupling washer, refill tube and refill tube clip
  • Reliable performance
  • Easy to install

Description

Durable, reliable, quality engineering and construction. American standard products are designed for your busy lifestyle. Parts, hardware, and components are engineered to enhance the usage of your american standard products. About american standard brands great performance and great looks meet in our complete line of fixtures and faucets for bath and kitchen. Performance and reliability. Coordinated collections. Ingenious features. American standard is style that works better everyday. From the Manufacturer Durable, reliable, quality engineering and construction. American Standard products are designed for your busy lifestyle. Parts, hardware, and components are engineered to enhance the usage of your American Standard products. About American Standard Brands Great performance and great looks meet in our complete line of fixtures and faucets for bath and kitchen. Performance and reliability. Coordinated collections. Ingenious features. American Standard is Style that Works Better everyday.

Specs 11

Manufacturer American Standard
Part Number 7381A
Item Weight 0.16 ounces
Product Dimensions 12.02 x 2.95 x 2.95 inches
Item model number 7381A
Size 10.00 in wide x 3.00 in tall x 3 in deep
Color No Finish
Material Plastic

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


Excellent DIY replacement
Exact OEM replacement at a non OEM price. Very easy do it yourself replacement. It took longer to get all of the water out of the tank using a sponge than it did replacing the old fill valve. Easy to follow instructions aimed toward someone that’s never changed one of these, and they improved the overflow tube by adding a clip and an adjustment wheel to affect the fill level in the bowl. ... show more
Reviewed in the United States on July 7, 2026 by Immyjay

Easy install.
Installed it myself. Fixed my toilet.
Reviewed in the United States on August 23, 2026 by Kindle Customer

Quality Fluidmaster product NOT American Standard but fits and works well
NOT AMERICAN STANDARD! it fits an american standard but also likely almost any other toilet. This one is Fluidmaster 400, which I have used previously and you can get anywhere. The old one that needed replacing was 6 years old. It gets four stars because I thought it was going to be OEM and it wasn't. This design also has a thumb compression roller for water to the bowl which i don't like as much as the previous fluidmaster i had. The old version had a dial. Neither fill the bowl up as much as I'd like on the max setting so if you are using the toilet like most that is going to be open all the way on an elongated bowl, and probably on a standard toilet also. Inexpensive enough. very quiet compared to the old one. water flow was interesting as it comes out the bottom sides of the post. Easy to install. I recommend you use the old one as a guide for your height adjustment - just line them up side-by-side, raise the collar and align the height, then slide the collar down to lock it in place. Overall, for the money and reliability of years of use, it is easily done, you wont need a plumber. Make sure you have a pan under the outlet during the sway and towel out the bowl of all water and you'll be happy. ... show more
Reviewed in the United States on August 17, 2026 by David Y

Great
No, it is NOT the American Standard brand. It is fluidmaster. But I knew to expect that from the reviews. They do need to fix that. it fits my American Standard toilet and was easy to install and was cheap.
Reviewed in the United States on July 30, 2026 by RedRogue

Easy install
Arrived as usual easy install new toilet works well
Reviewed in the United States on October 13, 2026 by Amazon Customer

Need toilet fill valve
Just what I was looking for
Reviewed in the United States on September 10, 2026 by michael orozco

Great replacement
NOT American Standard, but good quality. Easily installed, working quite well so far. B+++
Reviewed in the United States on August 5, 2026 by Peace Now

It’s not an OEM part
It’s a Fluidmaster part not actual American Standard. I was trying to buy an OEM part. Maybe they use these in their toilets now. I could have bought this at Lowe’s.
Reviewed in the United States on January 10, 2026 by KR Johnson
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