KOHLER 1117210 Flush Valve Kit - Direct Replacement for 1.28 gpf Tanks

In this review of the KOHLER 1117210 Flush Valve Kit the bottom line is clear: this is a straightforward replacement for Kohler toilet tanks that need a rebuilt or replaced flush valve. The kit is presented as a complete rebuild or direct replacement, and for most homeowners or maintenance techs looking to stop leaks or restore reliable flushing, that single capability is the main reason to buy. Installation is commonly cited as quick and simple, and the kit being a genuine Kohler part is a strong reassurance.

Key Features

• Complete rebuild kit: Includes the components needed to fully rebuild a worn or damaged flush valve so the tank can function like new.
• Direct replacement: Designed to fit Kohler toilet tanks without modification, reducing installation time and the need for extra parts.
• Manufacturer part: Being a Kohler part provides compatibility confidence for those repairing Kohler fixtures.
• Conserves water: Specified for 1.28 gpf systems, it maintains the low-flow flush designed for the toilet.
• Simple maintenance: Replacing the valve restores sealing surfaces and moving parts, often stopping common leaks.

Who It's For

This kit is best for homeowners, landlords, and plumbers who service Kohler toilets and need a genuine replacement or rebuild solution for a leak or failing flush. It is especially useful when the valve body is worn, seals are degraded, or the flush performance has declined and a reliable original equipment part is preferred.

It is less appropriate for owners of non-Kohler toilets or those who need an upgrade with additional flush features; compatibility with non-Kohler models is not implied, and alternative universal valves or upgrade kits should be considered in that case.

Pros & Cons

Pros

• Genuine Kohler part that fits Kohler tanks as a direct replacement, minimizing compatibility guesswork.
• Many users report very fast and easy installation, with one noting it took under 15 seconds to install.
• Restores proper flush performance and can solve leaks when worn seals are the cause.
• Maintains the 1.28 gpf low-flow design for water efficiency.

Cons

• Some buyers report mixed durability and occasional leakage issues, so results may vary depending on tank condition.
• A few customers mentioned missing parts on arrival, so inspect the kit before installation.

Specifications

Product	Flush Valve Replacement/Rebuild Kit
Brand	Kohler
Model	1117210
Flow rate	1.28 gpf
Intended use	Kohler toilet tanks - rebuild or direct replacement
Includes	Complete rebuild components for flush valve

Our Verdict

The KOHLER 1117210 Flush Valve Kit is a practical, value-oriented choice for anyone repairing a Kohler toilet tank. It delivers genuine OEM compatibility and usually fast installation, making it a sensible first option for leak repair or restoring flush performance. Buyers should inspect contents on receipt and be aware that longevity may vary by installation and tank condition.

Frequently Asked Questions

Is this kit compatible with all Kohler toilets?
It is intended for Kohler tanks needing a 1.28 gpf flush valve rebuild or direct replacement; compatibility with non-Kohler models is not guaranteed.

Will this stop a leaking toilet?
When leakage is due to worn flush valve components or seals, replacing them with this kit commonly stops leaks, though tank-specific damage may require additional repair.

How difficult is installation?
Most customers report easy, quick installation; a basic familiarity with tank removal and reassembly is helpful and recommended.