Best Kohler Toilet Flush Valves in 2026

Daisy
Last Updated: Jul 19, 2026

At a Glance: Our Top Picks for Kohler Toilet Flush Valves

Kohler Genuine Part Gp1059291 Canister Seal, 0.25 x 3.00 x 3.00 inches
#TOP1
Kohler Genuine Part Gp1059291 Canister Seal, 0.25 X
9.9
PM SCORE
KOHLER GENUINE PART 1188999 2" Toilet Canister Flush Valve Kit
#TOP2
Kohler Genuine Part 1188999 2" Toilet Canister Flush
9.8
PM SCORE
KOHLER PART GP1229656 Canister Repair Kit, No Size, Assorted Colors
#TOP3
Kohler Part Gp1229656 Canister Repair Kit, No Size,
9.8
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Kohler Toilet Flush Valves of 2026

Market Overview
Kohler Toilet Flush Valves Reviewed
  • Reviews Analyzed: 42187 Items
  • PM Avg. Rating: 7.6 / 10
48 Products Evaluated
  • Highest Price: $499.00
  • Lowest Price: $5.96
  • Avg. Price: $59.81

Kohler Genuine Part Gp1059291 Canister Seal, 0.25 X 3.00 X 3.00 Inches

KOHLER
K-GP1059291
3.00 X 3.00 X 0.25 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Protect the on Kohler products, always look for the Kohler genuine parts logo

Seal for single flush canister toilets

Chemical resistant and designed to withstand wear

Replaces red seal

After four generations, Kohler remains a family owned company

Kohler Genuine Part 1188999 2" Toilet Canister Flush Valve Kit

KOHLER
1188999
5.50 X 14.35 X 5.75 Inches
0.02 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

KOHLER GENUINE PART

3" canister with a 2" outlet harnesses the natural force of gravity and optimizes flush performance

Compatible with KOHLER Cimarron tank model number K-4421

Look inside the back wall of the toilet tank to identify tank model number

The number printed on the canister is a component number, which is a component of this kit.

Kohler Part Gp1229656 Canister Repair Kit, No Size, Assorted Colors

KOHLER
KOHLER
10.00 X 3.85 X 1.40 Inches
0.10 pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Protect the on KOHLER products, always look for the KOHLER GENUINE PARTS logo

Repair kit for single flush canister toilets

Includes cap, center guide and chain

Recommend also replacing seal part number GP1059291

Kohler K-1117210 Flush Valve Kit, 1.28,Black

KOHLER
1117210
5.00 X 5.00 X 15.00 Inches
0.02 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

For Wellworth Classic and Highline toilets

Elegant design and finish

The product is manufactured in United States

Genuine KOHLER product

Complete rebuild kit

For use in KOHLER two-piece toilets

Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank And Bowl Water Control, 1-Pack, Multicolor

FLUIDMASTER
400H-002-P10
3.35 X 4.33 X 13.19 Inches
0.60 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Fix noisy, or slow filling fill valves with the quietest, most powerful toilet fill valve available

Easy to install, step-by-step instructions included

Universal fit for most toilet models and brands

Tank and Bowl water level adjustment dials to customize the perfect flush and save

Compatible Kohler Flush Valve Seal - 3 Pack Toilet Ring Seal Gp1059291 - Flushing Gasket By Essential Values

ESSENTIAL VALUES
FIT MODELS: K-GP1059291 / 2475620
3.40 X 3.40 X 0.10 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Essential Values 9.92

Features

COMPATIBLE 6 PACK KOHLER FLUSH VALVE - Great value 6 pack flush valve seal. Compatible with Kohler K-GP1059291 and GP1059291. A fraction of the price in the stores. Choose Essential Values for great quality compatible kohler toilet replacement parts.

EASY INSTALLATION - Outside diameter: 3 3/8", Inside Diameter: 2.75". Our compatible Kohler flush valve kit is a direct replacement for worn out or cracked original seals. Takes just minutes to install, full fitting instructions in the photos.

SMARTER DESIGN - Unlike other brands, we've improved our gasket design and incorporated a lip to easily remove and replace the seal in the future. Save time and money, without jeopardizing quality.

BRING BACK YOUR FLUSH POWER - There’s nothing more problematic & embarrassing when you have guests over than a toilet that doesn't flush properly. We include a set of 6 compatible Kohler flush seal gaskets in each pack. Save money and protect your toilet for future use.

GP1059291 REPLACEMENT PART - Suitable for and compatible with Kohler toilets with a flush valve seal. Size may work with other comparable brands. Dimensions based on outside diameter of 3 3/8”. This is an aftermarket replacement by Essential Values.

Kohler K1078578 Flush Valve Assembly Kit

KOHLER
471147
8.50 X 10.35 X 4.95 Inches
0.42 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Package Dimensions: 8.7 L x 5.15 H x 10.55 W (inches)

Package Weight : 0.82 pounds

Country of Origin : United States

Brass construction

Korky 3060Bp Universal Toilet Flapper Replaces Most Large 3-Inch Flappers - Long Lasting Rubber - Easy To Install - Made In Usa

KORKY
3060BP
2.63 X 5.00 X 7.50 Inches
0.20 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Size: Large (3”).ADJUSTS TO FIT ALL 3-INCH TOILET FLUSH VALVES found in newer, HET toilets including, American Standard, Aqua source, Crane, Eljer, Ferguson, Gerber, Glacier Bay, Jacuzzi, Kohler, Mansfield, Pegasus, TOTO and many more

QUICKLY FIX running and leaking toilets and eliminate costly water waste

KORKY INVENTED THE TOILET FLAPPER VALVE and is still the preferred brand by plumbers for superior quality and reliability

MADE IN USA - Proudly made in America and backed by a 5 year warranty. Flapper made of chlorine resistant rubber

HIGH QUALITY REPLACEMENT TOILET PARTS: Need to repair or replace toilet parts? Try Korky Toilet Repair because we continue to commit to designing toilet repair parts that are universal to fit the majority of toilets. Designed & manufactured in Wisconsin.

#TOP9

Kohler Gp83888 Flush Valve Seal Gasket, One Size, 1 Count (Pack Of 1)

KOHLER
GP83888
3.75 X 3.75 X 0.75 Inches
0.05 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

KOHLER seal for toilet flush valve - 180093

This is highly durable

This is manufactured in United states

Kohler Genuine Part

Seal flush valve to tank

Fit's various flush valves

#TOP10

Plumbcraft Flush Valve Seal Replacement, Fits Kohler Class Five And Class Six Canister Flush Valves

PLUMB CRAFT
1554-0800
0.25 X 4.50 X 5.75 Inches
0.02 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MaxWarehouse 9.82

Features

Fits Kohler Class Five & Class Six canister flush valves

Replaces Kohler Class Five & Class Six Flush Valve Seal No. GP1059291

Engineered material resists chlorinated and harsh water for longer life

Detailed instructions makes installation easy

Fits Kohler Class Five & Class Six canister flush valves

Replaces Kohler Class Five & Class Six Flush Valve Seal No. GP1059291

Engineered material resists chlorinated and harsh water for longer life

Detailed instructions makes installation easy

Limited 5 Year Warranty

Flush Valve Seal For Kohler, 3-Pack Upgraded Silicone Material Canister Flush Valve Toilet Gasket Replacement Parts For K-Gp1059291, Easy To Install And Uninstall

ULLNOSOO
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
RFAdapter 9.92

Features

Our flush valve seal is a perfect replacement for Kohler K-GP1059291 canister flush valve seal (red or yellow color). Compatible with K-4436 parts.

Our toilet seal is made of high quality silicone material, compared with ordinary rubber toilet seal,our product is better resistant to chlorine and other chemicals in the water supply and has a long service life. Fits perfectly with all Kohler toilets with a canister flush valve, can fixe leaks and prevents ghost flushes from happening. Outside Diameter: 3.375" Inside Diameter: 2.75".

Easy to install and uninstall: Compared to other products,our seal has a lip to improve ease of adding and removing new and old seals. Installation steps: 1. Remove the valve stem by turning it from the bottom of the canister. 2. Remove the stem and old gasket, wipe off old rotting rubber on the surface. 3. Secure the inner ring of the seal around the tank lip. 4. Put it back and give it a few test rinses to make sure it's fully functioning and sealing properly.

Come with 3-pack flush valve seals to meet your daily use and replacement needs. No need to spend a lot of money to get a repairman to fix it, our products can save you time and money.

We offer worry-free warranty and friendly customer service within 12 months for your confident purchase. If you are not satisfied with any product, please don’t hesitate to contact us, we will serve you our best.

Kohler 1044458 Flush Valve Kit

KOHLER
1044458
5.90 X 14.50 X 6.20 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Replacement flush valve kit

Engineered to promote product longevity

Made with premium materials for enhanced durability

Kohler 1024385 Genuine Part Toilet Flush Valve Kit With 3 ¼” Flapper

KOHLER
04-2306
14.25 X 5.75 X 5.50 Inches
1.10 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Kohler Genuine Part

Complete Flush valve Kit

Fits Cimarron Toilet class five

Model number: 1024385

#TOP14

Kohler Gp1068030 Fill Valve Assembly, Pack Of 1, Amused

KOHLER
GP1068030
6.38 X 2.31 X 15.50 Inches
0.60 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Protect the on KOHLER products, always look for the KOHLER GENUINE PARTS logo

Fill valve for low profile one-piece toilets with flex connections

Used on various toilets including San Raphael, Rialto and Revival

Plastic shank

Use a soft, dampened sponge or cloth. Never use an abrasive material such as a brush or scouring pad to clean surfaces

Kohler K-83093 Flush Valve Kit

KOHLER
83093
9.00 X 5.75 X 3.25 Inches
0.20 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Genuine KOHLER product

Complete rebuild kit

For use with KOHLER toilets and not a universal fit

Country of Origin: United States

For use with Kohler Tanks San Martine K-3435 and Rosario K-3434

Kohler K83664 Flush Valve Kit

KOHLER
83664
0.46 X 9.07 X 7.07 Inches
0.45 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Country Of Origin: China

Model Number: K83664

Item Package Dimensions: 7.25" L x 5.0" W x 4.0" H

Item Package Weight: 0.464 lb

#TOP17
Best Valves

Kohler 1131496 Flush Canister Seal, 2.5 X 2.5 X 0.1 Inches

KOHLER
1131496
2.50 X 2.50 X 0.10 Inches
0.02 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Genuine Kohler part

Dual flush valve seal

Tank to bowl gasket seal

ID - 1.25", OD - 2.5" and TH - 0.1"

2 Pack Canister Flush Valve Seal Replacements For Kohler Toilets, Replaces K-Gp1059291, 2475620

DISCOUNT PARTS DIRECT
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
DISCOUNT PARTS DIRECT 9.91

Features

Quantity: 2 Pcs, Replaces Part Number: GP1059291, K-GP1059291, 2475620

Compatible for all toilets with a canister flush valve.

Fixes the following symptoms: Flushing loudly Leaking. Insufficient flushing pressure

PREMIUM QUALITY: The replacement part is made from high quality material for long lasting.

GUARANTEE: Discount Parts Direct is a US based company, from molding, stamping to assembly, inspection of each process has strict quality requirements and hand check. We appreciate your business

Kohler 30418 Flush Valve Gasket

KOHLER
30418
6.00 X 7.00 X 2.00 Inches
0.22 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Flush Valve Gasket Kit

For Various Gasket Kits

No Finish To Product

From The Brand Name: Kohler

#TOP20

Plumbcraft Eco-Friendly Adjustable Perfect Flush Anti-Siphon Toilet Fill Valve - Fits Most Toilets

PLUMB CRAFT
7030711
2.50 X 4.00 X 13.25 inches
0.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
SavvyDigz 9.67

Features

Adjustable toilet fill valve from 8" to 13". Features a fast powerful flush & quiet water fill.

Anti-Siphon technology keeps drinking water safe. Replaces Ballcocks with float balls or fill valves

Includes 6 color coded Water Flow Adjustment Caps to adjust water savings up to 38%.

Toilet repair kit/float valve fits most 2 piece toilets including: American Standard, Kohler, etc.

Easy installation. Includes Perfect Flush Valve, refill tube, and water flow adjustment caps.

Kohler 30668 Part, 5.75 X 5.75 X 14.00 Inches

KOHLER
30668
14.00 X 5.75 X 5.75 Inches
1.52 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Float valve kit

Fits older Kohler toilets

Combination fill flush valve

Model number: 30668

Rdexp White 7.08Inch Height Water Tank Connected Dual Flush Fill Toilet Cistern Inlet Drain Valve Repair

RDEXP
RDN103732016
0.32 Kilograms
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
RDEXP 9.81

Features

[Notice] Please check the following size information carefully, this is the key factor to determine whether the toilet drain valve can be successfully installed!!!

[Size Information] Diameter of base (without gasket): 65mm/2.56 inches; outer diameter of gasket: 85mm/3.35 inches. Height: 180mm/7.09 inches (excluding base), Overall width: 118mm/4.65 inches.

[Suitable For] The Drain Valve is suitable for 65mm-75mm (2.56-2.95inch) drain holes; suitable for toilet tank height (without tank cover) 19-23cm/7.48-9.06 Inch. This toilet drain valve is a replacement for TOTO, replacement for KOHLER and other brands of piece side toilet tank

[Toilet Drain Valve] This is a great toilet tank inlet drain valve with exquisite workmanship and a great replacement accessory for you. Silicone seal water tablets, good sealing effect, never leaks

[Convenient Installation] This toilet drain valve replacement kit includes installation parts and tools for easy and simple installation without looking for additional tools.

High efficiency and water saving, gentle and professional, can effectively improve the flushing performance of your toilet.

White 20.5Cm Height Water Tank Connected Dual Flush Fill Toilet Cistern Inlet Drain Valve Repair

DOUBLELIFE
M8HNJP0809021
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
SHANOER 6.23

Features

Efficient and water-saving, mild and professional, can effectively improve your toilet performance

Easy to use, strong adaptability, you will have a great experience

Toilet drain valve: This is a great toilet water tank inlet drain valve, with exquisite workmanship, and is your best replacement accessory.

Applicable brands: replacement for TOTO, replacement for KOHLER and other brands of connected side toilet water tank

High quality service: If you have any questions about our products, please contact us, we will serve you within 24 hours, you will not have any loss when purchasing our products, and our products will satisfy you

Kohler 04-2302 Flush Valve Kit, 04-2302

KOHLER
04-2302
15.00 X 8.00 X 2.50 Inches
0.55 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Kohler GENUINE Part

Fits most one-piece low boy toilets

Engineered to promote product longevity

Made with premium materials for enhanced durability

A replacement flush kit

Fits most one-piece low boy toilets

Kohler replacement parts

#TOP25

Kohler 1068622 Flush Valve Kit .3 Oz

KOHLER
1068622
10.25 X 8.50 X 4.50 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Replacement flush valve kit for various KOHLER toilets

Engineered to promote product longevity

Made with premium materials for enhanced durability

#TOP26

Kohler K84284 Flush Valve Kit

KOHLER
84284
6.20 X 7.95 X 4.05 Inches
0.46 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Replacement flush valve kit for various KOHLER toilets

Engineered to promote product longevity

Made with premium materials for enhanced durability

Next By Danco Hwk130 Hydrofit Total Premium Repair/Upgrade Kit

DANCO
HWK130
15.75 X 11.38 X 13.75 Inches
1.63 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

HydroClean fill valve detects leaks and cleans the tank

HydroForce adjustable flapper fits more toilets than any other adjustable flapper

Designed to be compatible with Watersense leaders Kohler, American Standard, Briggs

Repairs and works in more toilets than any other repair kit

Kohler 1059288 Canister Valve Assembly

KOHLER
1059288
0.00 X 0.00 X 0.00 Inches
0.02 pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Canister valve assembly kit

No finish to product

Kohler replacement parts

#TOP29

Kohler K-76321-Cp Primme Manual Flushometer Valve For 1.28 Gpf Toiletpolished Chrome

KOHLER
K-76321-CP
13.13 X 9.38 X 4.38 Inches
5.13 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
eFaucets 9.47

Features

Country of Origin: UNITED STATES

The Package Length of the product is 11 inches

The Package Width of the product is 23.4 inches

The Package Height of the product is 33.2 inches

Kohler K-10949-Sv-Cp 10949-Sv-Cp Tripoint 1/8 Gpf Dc Flush Vlv, Polished Chrome

KOHLER
10949-SV-CP
7.50 X 5.13 X 16.75 Inches
7.16 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
eFaucets 9.47

Features

Solid metal construction for Durability and reliability

Optimized and intended for use with the k-4904-et 1/8Th gpf high-efficiency urinal

Electronic infrared sensor with tripoint technology for accurate activation

Flushing technology offers reliable and accurate performance across pressures

Activation distance is factory set - no adjustments on-site

Top 10 toilet flush valves kohler Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Kohler 30
Fluidmaster 4
Plumb Craft 3
Danco 2
Rdexp 2
Discount Parts Direct 1
Doublelife 1
Essential Values 1
Evkilkjs 1
Korky 1

Top 10 toilet flush valves kohler Brands Pie Chart


We've carried out a comprehensive analysis of 42,187 reviews on toilet flush valves kohler, using our selection criteria to identify the best options in the home improvement. Our findings reveal that most customers typically select toilet flush valves kohler priced around $59.81, with top brands including essential values, kohler, ullnosoo, impresa, hzmm, hibbent, fluidmaster and zurn and qualihome

Our team of expert editors reviewed these high-quality items and handpicked the top 30 toilet flush valves kohler for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the home improvement category. These include essential values, efaucets, buildcom, rfadapter, thrifty but nifty kcm0, amazon.com, maxwarehouse, impresa products and ppgod and intelligent3h us .

We are dedicated to assisting our users in finding the right fixtures Products based on their needs, saving them considerable time when choosing which toilet flush valves kohler to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.