Kohler K-4639 Black Black Cachet Q3 Round Closed-Front Toilet Seat with Quiet-Close Technology, Quick-Attach Hinges and Grip-Tight Bumpers

- Item #: BCI226139

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  • Kohler seats with Grip-Tight bumpers bring stability to the bathroom
    Kohler gives you the breakdown on their new Grip-Tight rubber bumpers. Grip-Tight was added to their Q3 line of toilet seats to bring stability, as well as convenience and durability to your toilet and seat.

Kohler10 coupon applies to these select finishes - White

Product Features:
  • Round-front toilet seat with lid - designed to complement a wide variety of round-front toilet designs
  • This Cachet seat combines subtle styling and innovative technology
  • The Q3 advantage seats feature technologies that keep the seat from slamming, and simplifies both cleaning and installation
  • Made of solid polypropylene and is resistant to staining, fading, chipping and peeling
  • Seat is ergonomically contoured to provide maximum comfort to the user
  • Complete with color-matched plastic hinges

Product Technologies / Benefits:

  • Grip-Tight Bumpers: These rubber bumpers provide added security as well as less shifting of the seat while in use.
  • Quiet Close: This quiet close lid forces a gentle descent guaranteeing that your seat will never slam as you put it down.
  • Quick Attach: To get you fast on your way to enjoying your new toilet seat, the Quick-Attach Hardware from Kohler makes for fast and secure installation. Simply set the seat with the screws in pre-drilled installation holes, slip a wing-nut underneath and tighten from the top with a screw driver, it’s that easy.
  • Quick Release: This simple yet innovative technology from Kohler allows the seat to be unlatched from the toilet for easy removal and convenient cleaning with no tools required. Simply pop open the caps and gently pull the seat forward and you are ready for that detailed cleaning job that has been so difficult in the past.
Product Specifications:
  • Height: 1-1/8" (measured from rim of toilet fixture to the highest point on the seat)
  • Overall Length: 16-5/8" (measured from the back of the hinges to the front most part of the seat)
  • Overall Width: 14-3/16" (measured from left most point to the right most point of the seat)
  • Inside Length: 10-1/8" (measured from the back to the front of the inner opening of the seat)
  • Inside Width: 8-3/8" (measured from the left edge to the right edge of the inner opening of the seat)
  • Distance Required Between Installation Holes: 5-1/2"
  • Toilet Seat Material: Sturdy plastic
  • Secure mounting assembly while maintaining ease of installation

Additional Kohler Links

Our SKU: Kohler K-4639

This product is listed under the following manufacturer number(s):

  • Kohler K-4639-47
  • Kohler K-4639-96
  • Kohler 4639-0*
    Biscuit Satin
  • Kohler K-4639-7
    Black Black
  • Kohler K-4639-K4
  • Kohler K-4639-NY
  • Kohler 4639-0*
    Earthen White
  • Kohler K-4639-95
    Ice Grey
  • Kohler K-4639-55*
    Innocent Blush
  • Kohler K-4639-33
    Mexican Sand
  • Kohler K-4639-52*
  • Kohler K-4639-G9
  • Kohler K-4639-71*
    Seafoam Green
  • Kohler K-4639-6*
  • Kohler K-4639-Y2*
  • Kohler K-4639-NG*
    Tea Green
  • Kohler K-4639-58
    Thunder Grey
  • Kohler K-4639-97*
  • Kohler K-4639-0
  • Kohler 4639-0*
    White Satin
  • Kohler K-4639-45*
    Wild Rose

*Denotes a finish or option that has been discontinued

Kohler K-4639-7 Product Specifications

Installation Guide
Specification Sheet
Bowl Shape Round
Collection Cachet, Q3
Country Of Origin USA
Grip Tight Yes
Hinge Center to Center 5.5
Length 16.63
Made in America Yes
Material Plastic
Quick Release Yes
Seat Front Closed
Soft Close Yes
Theme Modern
Width 14.19
Width (Inside) 8.38

Installation Resource Center

Whether you are installing the product yourself or hiring a professional, our installation Resource Center has everything you need to get your project done. Visit the Installation Resource Center to get started.

Kohler K-4639 Reviews

Rated 3 out of 5 by from Toilet seat These seats look good but I replaced three toilets in my house and have bought five seats. One came cracked and was replaced free. One toilet is used more frequently than the others and cracked after about 15 months. In all these years I've never seen a toilet seat crack just by sitting on it. Not even the cheap ones. I expected more from Kohler.
Date published: 2013-08-08
Rated 1 out of 5 by from Falls way short of expectations I bought one to test for a couple of months and liked it so much I bought one for the 2nd BR. After less than a year the first seat no longer closes slowly. I opened it up and found that both "slow closing technology" (this is what Kholer calls it) mechanisms in each end are bad. I guess in the next two months I can expect the other to go bad. I could not just buy the "plungers" (what I call them because they lock the seat and lid together and contain the "slow close technology); I will have to buy (costs tax, & plus shipping and handling) the whole EB Hinge Kit for almost what I paid for the seat. Oh, and the kits are out of stock... that should tell you something. Wouldn't buy it unless you want to spend $ every year for new toilet seats. Their "slow close technology" appears to be faulty.
Date published: 2011-09-27
Rated 3 out of 5 by from Fragile Prong Covers! First the good: this seat is great at slowly closing so that no one can bang it shut. The color matched my almond toilet perfectly. What I am very disapointed with are the covers to the quick release assembly. They are extremely fragile, meaning if you do not have the assembly perfectly lined up when you try to shut the covers, they will break at the seam. In the 1 month since I installed mine, one cover is 1/2 torn at the seam. I now will no longer use the quick assembly to clean my seat, for fear that it will break all of the way.
Date published: 2009-08-15
Rated 4 out of 5 by from good Works well and is attractive. Unfortunately, apparently, it's a rather soft plastic and scratches VERY easily.
Date published: 2008-08-12
Rated 5 out of 5 by from Self close toilet seat Works just as described, love not having to worry about slamming the seat or having my boyfriend leave it up; all you have to do is slightly move it and it does the rest. I only have it in the master bathroom, but would like to get them for the rest!
Date published: 2014-05-19
Rated 1 out of 5 by from Terrible construction We bought two of these toilet seats. The one in the bathroom we use most often cracked within a year. The second one, in a basement bathroom that gets very little use, cracked within 2 years. Except for an occasional visitor, the only people using these toilets are my husband and myself and we are not heavy people!
Date published: 2014-03-26
Rated 5 out of 5 by from GREAT PRODUCT! Great product! My 5 year old cannot slam the lid down anymore!!! The lid and seat are always down and go down gently. Do not be wary of this item, it is great!
Date published: 2008-08-24
Rated 5 out of 5 by from 3rd one in the house Replacing our last standard seat in the house---no more lid slamming! We have had issues with the quick-release prongs breaking in the past; crossing our fingers that we have learned how to be gentle enough with removing them now after some experience so that we can keep them in one piece. Still, the benefit of being able to remove the seat easily for cleaning with 3 boys in the house is worth dealing with having to be gentle about it.
Date published: 2014-12-14
  • Will this work on the Kohler Wellington toilet?

    A. The Kohler K-4639 would work on that toilet.
  • I have Rialto toilets model 3402, How do I know which toilet seats fit?

    A. The Kohler Rialto fits the K-4663 & the K-4639- Just make sure it is a Round Front Kohler Toilet Seat.
  • Is only the the cover quiet close or does the bottom seat slowly close?

    A. The Kohler K-4639 seat and cover close slowly on this model.
  • What are the dimensions of the seat?

    A. The Kohler K-4639 is 14.19" in width and 16.63" in length. The inside width is 8.38".
  • Does this fit the Cimarron K-3887?

    A. The Kohler K-4639 can be used and does fit the K-3887.
  • Does this toilet seat work on model # 3434?

    A. this is made for any round front toilet seat. NOT elongagated.
  • Will this fit the Cimarron K-3888?


    The K-4639 will fit the K-3888.

  • Will this toilet seat work with the Kohler Memoir toilet #4289?


    Yes, the Kohler K-4639 will work with the Kohler Memoir 4289.

  • Does this seat fit the Cimarron K-3851?


    The Kohler K-4639 will fit the Cimmarron.

  • Will this seat fit a K-4199


    The Kohler K-4639 does fit the K-4199.

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