Kohler K-4418-NY Dune Cimarron 1.6 GPF Toilet Tank Only with AquaPiston Technology

- Item #: BCI1741908

Low Flow Toilet Restrictions

This item cannot be shipped to the following location(s): CA, TX

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Product Features:

  • Tank only configuration - allows the opportunity to match pieces with a selected bowl
  • Covered under Kohler's 1 year limited warranty
  • The Cimarron Collection combines versatile design with high-powered, efficient performance
  • Constructed of durable, easy to clean vitreous china
  • Features a powerful gravity flush with AquaPiston technology

Product Technologies / Benefits:

  • AquaPiston: AquaPiston single flush canister technology uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong, efficient siphon during flushing. The canister flush valve's 3:2 ratio optimizes flush performance and resists warping and deterioration, while its durable design features 90% less exposed seal material than a standard 3-inch flapper flush valve, guaranteeing leak-free performance. The light-touch canister requires lower activation force than a flapper, and once activated, allows water to flow into the bowl from all sides (360 degrees), increasing each flush's power and effectiveness.

Product Specifications:

  • Overall Height: 14-1/4" (measured from bottom to top of tank)
  • Overall Depth: 8" (measured from back to front of tank)
  • Overall Width: 17-5/8" (measured from rightmost to leftmost edge of tank)
  • Flow Rate: 1.6 GPF (gallons per flush)


  • K-4418: This model
  • K-4418-RA: This model with right hand trip lever
  • K-4421: 1.28 GPF version of this model
  • K-3589: This model with bowl (complete toilet fixture)

About Kohler:

Gracious living is characterized by qualities of charm, good taste, generosity of spirit, and the enhancement of nature. It is Kohler's mission that you improve your sense of gracious living with every experience you have with a Kohler product or service. Kohler lives on the leading edge of design and technology, while maintaining a constant level of quality, regardless of price. It sets the standard of excellence in its field, and yet is constantly striving to improve. From sustainable products in the kitchen and bath to power systems that protect data centers and urban landscapes all over the world - this is what the Kohler company is all about.

Additional Kohler Links

Our SKU: Kohler K-4418

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

*Denotes a finish or option that has been discontinued

Kohler K-4418-NY Product Specifications

Configuration Tank Only
Country Of Origin USA
Depth 8
Flush Technology Class Five
Gallons Per Flush 1.6
Height 14.25
Insulated Tank No
Length 8
Made in America Yes
Material Vitreous China
Product Weight 35
Theme Modern
Trip Lever Placement Left
WaterSense Certified No
Width 17.63

Installation Resource Center

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Kohler K-4418 Reviews

Rated 5 out of 5 by from Elegant look and perfect quality I redesighed my powder room and bought all items from this wedsite: Kohler toilet bowl with tank and pedestal sink matching set, Modern Quiet Close Elongated Toilet Seat with Quick Release from the Cache Collection and Moen Eva collection fauset and accesories in Rubbed Bronze. All looks very contemporary and elegant, work perfect! Items arrived in 2 days even earlier then expected. I called to Customer Support when placed the order and double check the specifications and colors that placed in order. Very happy with purchase/quality and recommend this website and products to all!
Date published: 2010-07-12
Rated 5 out of 5 by from Quiet and Water Efficient A few months ago, we ordered K-4418 (tank), K-4309 (bowl) and K-4664 (seat) together for our kids' bathroom, based upon a recent Consumer Reports review, and were so pleased with this toilet model that we ordered a second one a few months later for our master bathroom. It is very quiet, uses very little water compared to our old toilets, and flushes efficiently. It works great with our well and septic system, plus both times we ordered, the items were delivered very quickly by UPS.
Date published: 2009-12-26
Rated 5 out of 5 by from Nicely Styled The tank is modern looking, but in a traditional way. My home has modern aspects,, but is an arts and craftts style...so this fits in with those looks, but modern ammenities...but not cutting edge..just clean lines.
Date published: 2010-03-04
Rated 5 out of 5 by from
Date published: 2013-07-30
Rated 5 out of 5 by from very nice ... just as expected What can you say about a toilet tank ... it is very nice. We show all of our friends.
Date published: 2011-04-16
  • What is the difference between class 5 & class 6 tanks?

    A. Kohler only uses Class 5 now. This has to do with the flushing technology.

  • If I buy the cimmaron model 3589 will that always have K4418 tank with 1.6 gal. water ?

    A. The Kohler K-4418 Cimarron 1.6gpf Class Five Toilet Tank Only will always be the tank you get with the K-3589. If they ever change the gpf, they will change the model number of the tank.

  • mount bolts config.

    A. It should be two bolts, one on each side.

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