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  • Fluidmaster K-400A-023 Mansfield Toilet Fill Valve and Flush Valve Seal Repair Kit Multicolor
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Fluidmaster K-400A-023 Mansfield Toilet Fill Valve and Flush Valve Seal Repair Kit Multicolor

4.5 out of 5 stars 248 ratings
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Purchase options and add-ons

Material Plastic Rubber Silicone Rubber
Brand Fluidmaster
Item dimensions L x W x H 7 x 15.2 x 35 Centimetres
Exterior finish Chrome
Inlet connection type Flange
Outlet connection type Flange
Number of ports 2
Outlet connection size 3 inches
Specification met CSA, ULC
Valve type flush valve

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Product information

Technical Details

Manufacturer ‎Fluidmaster
Part Number ‎K-400A-023-T5
Product Dimensions ‎7.01 x 15.19 x 34.98 cm; 360 g
Item model number ‎K-400A-023-T5
Colour ‎Multicolor
Material ‎Plastic Rubber Silicone Rubber
Installation Method ‎Toilet
Item Package Quantity ‎1
Number of Pieces ‎1
Certification ‎CSA, ULC
Usage ‎Inside; Amateur, Inside; Professional
Included Components ‎Fill Valve, Seal, Tank Lever
Batteries Required? ‎No
Warranty Description ‎5 Year Limited
Item Weight ‎360 g
Country of origin ‎Mexico

Additional Information

ASIN B09VCZBP39
Customer Reviews
4.5 out of 5 stars 248 ratings

4.5 out of 5 stars
鶹 Rank
Date First Available Aug. 17 2022

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Fluidmaster K-400A-023 Mansfield Toilet Fill Valve and Flush Valve Seal Repair Kit Multicolor

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Product description

The Fluidmaster K-400A-023 Mansfield Toilet Fill Valve and Flush Valve Seal Repair Kit is designed specifically to repair your Mansfield brand toilet. Featuring parts made to improve the fill and flush performance of both Mansfield #210 toilets and Mansfield #211 toilets. Quickly fix leaks and solve slow fill and running toilet problems with this toilet repair kit. Including the 400A toilet fill valve, a universal anti-siphon design for quicker refill and long lasting performance. Also showcasing Mansfield toilet parts, such as the 510M Mansfield flush valve seal replacement and a Mansfield flush lever replacement. Key features include: Tank water level adjustment dial, adjustable fill valve height, durable hard water resistant seals and a stylish chrome finish toilet tank lever. Upgrade your Mansfield toilet fast with the Fluidmaster Mansfield Toilet Repair Kit.

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Customer reviews

4.5 out of 5 stars
248 global ratings

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Top reviews from Canada

  • B. Duncan McKinlay
    5.0 out of 5 stars Works with Mansfield 160-A toilet (circa 2007)
    Reviewed in Canada on November 14, 2024
    Verified Purchase
    I concur with others that instructions are clear and easy to follow (from someone who is decidedly not handy).

    Definitely ensure the new flush valve seal is correctly placed all around on the very top groove - spin it in place on the groove to be sure it's seated properly. If, after installation, the fill valve intermittently comes on briefly time and again, that seal not being placed quite right is the culprit.
    Helpful
     Report
  • Sanj15
    5.0 out of 5 stars Works well
    Reviewed in Canada on May 21, 2024
    Verified Purchase
    Needed to repair fill part in toilet - this did the trick
    Helpful
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  • DAVID F SHAVE
    5.0 out of 5 stars Ok
    Reviewed in Canada on March 13, 2024
    Verified Purchase
    Ok
    Helpful
     Report

Top reviews from other countries

  • Steve Horton
    5.0 out of 5 stars Read the instructions if you have not done this before.
    Reviewed in the United States on July 27, 2025
    Verified Purchase
    great, complete kit with instructions.
    Report
  • Barry S
    5.0 out of 5 stars Do your own toilet repair as a novice
    Reviewed in the United States on June 13, 2024
    Verified Purchase
    Every 20 minutes, my Mansfield toilet briefly made the sound it makes when refilling after a flush, which was likely was due to a leaky flapper valve. I procrastinated for a year until it broke even more when it continued to make the refill sound and never stopped, which was likely due to a faulty refill valve. I was forced to shut the water valve to stop water from being wasted and had no choice but to either call a plumber or to roll the dice and try to do it myself. I figured I couldn’t make it any worse, so I bought this item and followed the simple replacement instructions and it wasn’t messy at all. I also purchased the Mansfield 630-0206 universal flapper valve and swapped it out with the old one. I turned the water back on and refilled the tank and gave it a few flushes and turned the height dial for fine tuning of the water level. At first, it started to make that brief refill sound periodically but that soon stopped and it’s been working flawlessly. I even changed the flush lever with the chromed plastic lever included in the box. I had to shorten the internal portion of the lever by cutting it down to fit properly. I didn’t use the larger red rubber washer that was included. Overall, I think ai saved over $350 by not calling the plumber this time.
    Report
  • Elizabeth
    5.0 out of 5 stars Smooth installation
    Reviewed in the United States on November 22, 2024
    Verified Purchase
    I got this to fix a toilet that kept running. It was a Mansfield No.160 (1.6 GPF) with a 211 flush valve. I like that the kit contains all the parts I would need at once--fill valve with lock nut, orange flush valve seal, and lever. I had watched tutorials beforehand, but the instructions included are very clearly written with color images. So I think someone would be able to do it with only the paper instructions. They also include a link to online instructions.

    The only other tools I needed were a small tub to catch the last bit of water in the tank, a washcloth to wipe down the inside, a wrench to loosen the nut for the waterline and the locknut, and scissors to cut the tube a little shorter.
    Customer image
    Elizabeth
    5.0 out of 5 stars
    Smooth installation

    Reviewed in the United States on November 22, 2024
    I got this to fix a toilet that kept running. It was a Mansfield No.160 (1.6 GPF) with a 211 flush valve. I like that the kit contains all the parts I would need at once--fill valve with lock nut, orange flush valve seal, and lever. I had watched tutorials beforehand, but the instructions included are very clearly written with color images. So I think someone would be able to do it with only the paper instructions. They also include a link to online instructions.

    The only other tools I needed were a small tub to catch the last bit of water in the tank, a washcloth to wipe down the inside, a wrench to loosen the nut for the waterline and the locknut, and scissors to cut the tube a little shorter.
    Images in this review
    Customer imageCustomer image
    Report
  • 鶹 Customer
    5.0 out of 5 stars Easy to install. Works like a charm.
    Reviewed in the United States on December 22, 2024
    Verified Purchase
    I don't like when my landlord has to fix stuff that I could've fixed. This was insanely easy to put in my toilet tank. Anyone can do it. Been a few months and no problem
    Report
  • Curt H
    4.0 out of 5 stars Worked but handle assembly dint work
    Reviewed in the United States on January 15, 2025
    Verified Purchase
    My toilet is a Mansfield 160 which developed a defect in the fill valve causing it to spray water up on the lid which then ran down the outside of the tank, through the floor and ruined a ceiling tile in the basement. This Flushmaster replacement for Mansfield toilets was pretty easy to install and the instructions were very good. I took a star off though because the new handle assembly was not useable. In the picture you can see that the new blue handle rod is angled towards what would be the front of the tank. This causes it to bind on the flush valve such that it does not seal and the tank cannot fill more than about 1/4-1/2in with water so I had to reuse the old one. I also ended up installing and removing the new fill valve assembly 4 times to adjust the height of the new valve to get the tank to fill to the proper level. The “fine adjust knob” on the Flushmaster was already at the highest level so the approx 4in of adjustment was all in the less water direction. I could not center it and use it because the course valve height adjustment would have needed to make the fill valve higher than the tank lid. In spite of that, I will probably order 2 more to replace the fill valves on 2 other Mandfield 160 toilets. I don’t like the Mansfield fill valve design that allows for the possibility of water spraying up. I literally had several streams of water spray my face when I first removed the lid to investigate the water running down the side of the tank. The toilets are all 13-14 years old so better safe than sorry.
    Customer image
    Curt H
    4.0 out of 5 stars
    Worked but handle assembly dint work

    Reviewed in the United States on January 15, 2025
    My toilet is a Mansfield 160 which developed a defect in the fill valve causing it to spray water up on the lid which then ran down the outside of the tank, through the floor and ruined a ceiling tile in the basement. This Flushmaster replacement for Mansfield toilets was pretty easy to install and the instructions were very good. I took a star off though because the new handle assembly was not useable. In the picture you can see that the new blue handle rod is angled towards what would be the front of the tank. This causes it to bind on the flush valve such that it does not seal and the tank cannot fill more than about 1/4-1/2in with water so I had to reuse the old one. I also ended up installing and removing the new fill valve assembly 4 times to adjust the height of the new valve to get the tank to fill to the proper level. The “fine adjust knob” on the Flushmaster was already at the highest level so the approx 4in of adjustment was all in the less water direction. I could not center it and use it because the course valve height adjustment would have needed to make the fill valve higher than the tank lid. In spite of that, I will probably order 2 more to replace the fill valves on 2 other Mandfield 160 toilets. I don’t like the Mansfield fill valve design that allows for the possibility of water spraying up. I literally had several streams of water spray my face when I first removed the lid to investigate the water running down the side of the tank. The toilets are all 13-14 years old so better safe than sorry.
    Images in this review
    Customer image
    Report

Product Summary: Fluidmaster K-400A-023 Mansfield Toilet Fill Valve and Flush Valve Seal Repair Kit Multicolor

From Fluidmaster

4.5 out of 5 stars, 248 ratings

Customer reviews

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Product description

The Fluidmaster K-400A-023 Mansfield Toilet Fill Valve and Flush Valve Seal Repair Kit is designed specifically to repair your Mansfield brand toilet. Featuring parts made to improve the fill and flush performance of both Mansfield #210 toilets and Mansfield #211 toilets. Quickly fix leaks and solve slow fill and running toilet problems with this toilet repair kit. Including the 400A toilet fill valve, a universal anti-siphon design for quicker refill and long lasting performance. Also showcasing Mansfield toilet parts, such as the 510M Mansfield flush valve seal replacement and a Mansfield flush lever replacement. Key features include: Tank water level adjustment dial, adjustable fill valve height, durable hard water resistant seals and a stylish chrome finish toilet tank lever. Upgrade your Mansfield toilet fast with the Fluidmaster Mansfield Toilet Repair Kit.
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