By: KOHLER
The KOHLER K-1188998 Flush Valve Kit is the best toilet flush valve on the market for value, sturdiness, build quality, and overall satisfaction. This flush valve kit is designed to last and will provide you with reliable performance for years to come. With its superior build quality, you can count on it to stand up to the toughest conditions. Plus, its unbeatable value makes it an outstanding choice for any budget. Get the KOHLER K-1188998 Flush Valve Kit and experience excellent performance, reliability, and satisfaction.
G. Morgan: Fairly easy to install. Need a wide wrench to tighten. Works well.
Canada on Apr 17, 2023
Kavall: This was by far the easiest thing to replace I've ever had to do with a toilet. There was some conflicting statements about what it fits and makes you get concerned, however if you have the right one of these you can very quickly replace part or all of the flush valve as needed.
United States on Feb 18, 2023
Parks T.: I received this product in the time frame specified. Upon opening the package, it was easy to discern that this valve had been previously used, but nothing was damaged or worn in a negative way. I have not returned it because it appears to be in working condition and I need it now. I just do not appreciate receiving a product that was sold as New but is not technically "NEW". . . . . I guess this is what we should expect now that Amazon is dominating the market place.
United States on Dec 10, 2022
atia: Was perfect. Was the exactly the same piece I wanted to replace. I just YouTube some videos on how to change it.
Canada on Sep 28, 2022
Amazon CustomerAmazon Customer: It was reassuring to get the Kohler OEM "flush valve" kit as opposed to a generic knockoff. Along with this OEM part for a K-4418, I got the related OEM "fill valve" kit with float which had small but meaningful difference from the generic universal-fit part that the local store first sold me (and I subsequently returned). For example, the generic kit had a smaller float.
After removing the tank, the hard part was removing the white retaining ring. With some pieces of wood and two clamps, it was easy to construct a wrench to deal with the retaining ring. The lower clamp was the wrench handle.
A point of nervousness was reassembly and tightening down the tank bolts, and wondering how tight to make them without snapping the ceramic base. When the tank is replaced onto the base, it rocks a bit on the big rubber/foam seal, so I tightened just enough that the tank would not rock. The difference between rocking and not rocking was about 1/2 a turn of the tightening nut.
United States on Mar 13, 2022
mw: Works just fine after replacement.
Canada on Sep 06, 2021
Richkar: This was the second one I have ordered. The t tab on the bottom snaps off if you are not careful installing or removing it. Good valve, works well. Wish Kohler would supply the gasket separately though
Canada on Feb 01, 2021
Billie: Determining whether I had the correct part-when I ordered. I was fixing and older model toilet that did not have the part number on the tank.
Canada on Aug 29, 2019
Jhan Wilson: I wasn't sure if it was the right part, but this was a direct fit for my Kohler toilet. I had no idea what the original part number was, as it was not on the part I removed. (However, after I finished the installation, I found that the part number was listed on the BOTTOM side of the TANK LID.) To order, I just looked at the part I removed and matched it to the closest picture on Amazon. Fortunately it worked. Originally, I tried using the numbers stamped in the tank to order the flush valve, but some numbers were faded and illegible. Besides, they weren't the correct numbers anyway. After a quick tutorial on You Tube, I was able to replace the flush valve. It DOES require removal of the tank from the toilet. However, it only required the removal of two nuts (with washers) and disconnecting (unscrewing) the water to the tank. It's pretty straight forward and I'm sure the average person can do it. The only advice I can give is to have a very large pair of slip pliers, or use a plier type oil wrench (as I did) to get the very large plastic nut (about 3 inches in diameter) off the bottom of the tank to remove the flush valve. You'll understand what I'm saying once you remove the...
United States on Aug 05, 2018
| Kohler Flush Valve Installation Kit for Toilets | Kohler Genuine Silent Fill Toilet Fill Valve Kit: Quality Replacement Part for Optimal Performance | Korky Blue Universal Fill Valve - Perfect Fit for Toto Toilets (1 Unit) | |
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| B2B Rating |
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| Sale off | $1 OFF | $7 OFF | |
| Total Reviews | 180 reviews | 817 reviews | 10 reviews |
| Manufacturer | Yes | No | No |
| Country of Origin | China | China | |
| Material | Metal | Plastic | Rubber |
| ASIN | B00CXRZH1U | B003MH314U | B00RY3OHVY |
| Customer Reviews | 4.7/5 stars of 967 ratings | 4.7/5 stars of 4,013 ratings | 4.6/5 stars of 520 ratings |
| Date First Available | October 17, 2011 | September 30, 2008 | January 7, 2015 |
| Best Sellers Rank | #30,957 in Tools & Home Improvement #62 in Toilet Flush Valves#2,696 in Kitchen & Bath Fixtures | #2,191 in Tools & Home Improvement #6 in Toilet Flush Valves | #44,066 in Tools & Home Improvement #83 in Toilet Flush Valves#3,772 in Kitchen & Bath Fixtures |
| Domestic Shipping | Item can be shipped within U.S. | ||
| Product Dimensions | 3.25 x 3.25 x 10.87 inches | 12.5 x 3.5 x 3 inches | 2.4 x 10 x 4 inches |
| Item model number | K-1188998 | GP1138930 | 528GT |
| Is Discontinued By Manufacturer | Yes | No | No |
| Batteries Included? | No | No | No |
| Batteries Required? | No | No | No |
| International Shipping | This item can be shipped to select countries outside of the U.S. Learn More | ||
| Size | Pack of 1 | 12.5" x 3.5" x 3" | Single Unit |
| Item Weight | 3.2 ounces | 0.035 ounces | 9.1 ounces |
| Item Package Quantity | 1 | 1 | 1 |
| Part Number | 1188998 | GP1138930 | 528GT |
United States on Jun 04, 2023