---
product_id: 14899689
title: "Kohler Part 85406 2\" Toilet Flush Valve Kit, Colors may vary"
brand: "kohler"
price: "₨1311"
currency: SCR
in_stock: true
reviews_count: 8
category: "Kohler"
url: https://www.desertcart.sc/products/14899689-kohler-part-85406-2-toilet-flush-valve-kit-colors-may
store_origin: SC
region: Seychelles
---

# Complete OEM kit with all seals & bolts 2-inch inlet connection for optimal flow Direct fit for Kohler Wellworth & Highline models Kohler Part 85406 2" Toilet Flush Valve Kit, Colors may vary

**Brand:** kohler
**Price:** ₨1311
**Availability:** ✅ In Stock

## Summary

> 🚽 Upgrade your flush game with Kohler’s precision-engineered valve kit—because your throne deserves the best!

## Quick Answers

- **What is this?** Kohler Part 85406 2" Toilet Flush Valve Kit, Colors may vary by kohler
- **How much does it cost?** ₨1311 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/14899689-kohler-part-85406-2-toilet-flush-valve-kit-colors-may)

## Best For

- kohler enthusiasts

## Why This Product

- Trusted kohler brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Installation:** Straightforward, no modifications needed—get your toilet back to peak performance fast.
- • **Universal Compatibility:** Perfect fit for Wellworth, Highline, and multiple Kohler toilet models, replacing part #84246 seamlessly.
- • **Precision OEM Engineering:** Designed by Kohler engineers to ensure flawless, leak-free flushing every time.
- • **All-in-One Replacement Kit:** Includes flush valve, 2" flapper, triangle gasket, bolts, and washers—everything you need in one box.
- • **Durability Meets Performance:** Metal construction and genuine parts guarantee long-lasting reliability and optimized flush efficiency.

## Overview

The Kohler Part 85406 2" Toilet Flush Valve Kit is a genuine OEM replacement designed for Kohler Wellworth, Highline, and other models. Featuring a 2-inch inlet connection, metal construction, and a complete set of seals, bolts, and flappers, this kit ensures a perfect fit and optimized flushing performance. Engineered for durability and easy installation, it replaces part number 84246 and guarantees leak-free operation, protecting your toilet’s warranty and longevity.

## Description

Product Description Protect the warranty on KOHLER products, always look for the KOHLER GENUINE PARTS logo. This flush valve was designed by KOHLER engineers to maintain original product performance and promote product longevity. Replace your old or leaky flush valve with an OEM KOHLER part. From the Manufacturer Kohler Genuine Part, Flush Valve, Flush Valve.

Review: Perfect and came with everything you need - This is the exact part I needed to replace the tank seals on my Kohler toilet. After reading the various reviews, I was concerned that the round sealing washer would not be in my kit although it does show in the diagram photo of parts included in the kit. However, when the kit arrived, it included everything I needed: fill valve with seal, the triangular seal, all bolts, washers, and fasteners, as well as the round large washer and the screw on attached ring. Perfect. The hardest part of the job was unscrewing the old attachment ring as the original plumber installing this toilet had tightened it very firmly. I wound up pulling the old triangular ring off (somewhat in pieces) with the attachment ring still on. Then I was able to more easily access the attachment ring and unscrew it (it came off without too much effort...actually without a tool just by hand.... once the black rubber triangular seal was gone). I was able to install the new black triangular seal, the large washer and then the new locking ring without any problems. I was also able to get the new locking ring snug without too much tightening using a large pair of channel locks. I made sure it was tight, not leaking, but did not make it so tight that it would be impossible to remove if I needed to (aka the previous one). It's been 5 days now and absolutely no leaks, working perfectly. So, this kit does indeed come with everything showing in the diagram photo...everything you need to change out the filler and tank seals.
Review: I'm sold on OEM parts - My toilet was previously repaired using a generic flush valve designed for use in most toilets. It worked fine for years but eventually failed. I struggled with spending money for an OEM replacement at first and then I researched, back to the last time I repaired a toilet using the higher priced OEM parts and, it was a long time ago. In fact, so long ago that, even with the price difference, the OEM part worked out to be the cheaper choice. This part is no exception. It was a straight forward installation with no need to adjust or modify anything as it's exactly what the manufacturer designed for my toilet. Because of that, the replacement was straight forward, quick and, after completion, a quick leak check was all that was required. No time spent or water wasted adjusting things.

## Features

- KOHLER GENUINE PART
- Flush valve assembly for Wellworth, Highline and various other KOHLER toilets
- Includes flush valve, 2" flapper, triangle gasket and bolts
- Optimizes toilet flushing performance
- Replaces black flush valve with red flapper
- Also replaces part number 84246

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Kohler |
| Exterior Finish | Assorted Colors |
| Inlet Connection Size | 2 Inches |
| Inlet Connection Type | Barb |
| Item dimensions L x W x H | 11 x 6.5 x 3 inches |
| Material | Metal |

## Product Details

- **Brand:** KOHLER
- **Item dimensions L x W x H:** 11 x 6.5 x 3 inches
- **Exterior Finish:** Assorted Colors
- **Inlet Connection Size:** 2 Inches
- **Inlet Connection Type:** Barb
- **Outlet Connection Type:** Barb
- **Number of Ports:** 2
- **Outlet Connection Size:** 2 Inches
- **Global Trade Identification Number:** 00040688884073
- **Manufacturer:** Kohler

## Images

![Kohler Part 85406 2" Toilet Flush Valve Kit, Colors may vary - Image 1](https://m.media-amazon.com/images/I/51o4HTjY1OL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Is the diameter of the flush valve 2"?**
A: not sure about diameter of large tube that goes between tank and bowl.  Seems larger than 2".   Cant really measure since installed. Here is link to picture https://www.plumbingsupply.com/images/kohler-flush-valve-85406.jpg   .   THis is the only one that fits Kohler Highline toilets and worth the price.  Key Is triangular gasket at bottom that only comes with Kolher

**Q: will this fit a 4609 model toilet?**
A: Yes, but if your ballcock is not adjustable style water will over flow the tube. If it is adjustable just change water level to the mark on the tube, or about 3/4 inch below the top of the tube. This item fits most all Kohler tanks with the three bolt configuration.

**Q: I installed this but still have a slow leak from tank into the bowl.  Is the flapper opening the only place water can flow from tank to bowl?**
A: make sure you have the nut tight enough or not over tigthen. Make sure the flapper is coming all the down to seal. Make sure you don't have a cracks .

**Q: Do I have to buy the fill valve too?**
A: If you're already buying the flush valve and the three bolt tank seal, you might as well replace the fill valve also. Replacing those three items will make the toilet like new for many years.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect and came with everything you need
*by C***R on March 5, 2019*

This is the exact part I needed to replace the tank seals on my Kohler toilet. After reading the various reviews, I was concerned that the round sealing washer would not be in my kit although it does show in the diagram photo of parts included in the kit. However, when the kit arrived, it included everything I needed: fill valve with seal, the triangular seal, all bolts, washers, and fasteners, as well as the round large washer and the screw on attached ring. Perfect. The hardest part of the job was unscrewing the old attachment ring as the original plumber installing this toilet had tightened it very firmly. I wound up pulling the old triangular ring off (somewhat in pieces) with the attachment ring still on. Then I was able to more easily access the attachment ring and unscrew it (it came off without too much effort...actually without a tool just by hand.... once the black rubber triangular seal was gone). I was able to install the new black triangular seal, the large washer and then the new locking ring without any problems. I was also able to get the new locking ring snug without too much tightening using a large pair of channel locks. I made sure it was tight, not leaking, but did not make it so tight that it would be impossible to remove if I needed to (aka the previous one). It's been 5 days now and absolutely no leaks, working perfectly. So, this kit does indeed come with everything showing in the diagram photo...everything you need to change out the filler and tank seals.

### ⭐⭐⭐⭐⭐ I'm sold on OEM parts
*by N***R on January 22, 2025*

My toilet was previously repaired using a generic flush valve designed for use in most toilets. It worked fine for years but eventually failed. I struggled with spending money for an OEM replacement at first and then I researched, back to the last time I repaired a toilet using the higher priced OEM parts and, it was a long time ago. In fact, so long ago that, even with the price difference, the OEM part worked out to be the cheaper choice. This part is no exception. It was a straight forward installation with no need to adjust or modify anything as it's exactly what the manufacturer designed for my toilet. Because of that, the replacement was straight forward, quick and, after completion, a quick leak check was all that was required. No time spent or water wasted adjusting things.

### ⭐⭐⭐⭐⭐ Kohler Wellworth Toilet - Ghost Leak Solved
*by J***B on November 20, 2018*

This product was the perfect fit and replacement of the flush valve on my Kohler Wellworth 4620 toilet (circa 2000) which had a ghost leak causing the fill valve to periodically cycle. Multiple flapper replacements did not solve the problem, which I now suspect was related to water from the tank bypassing a worn gasket on the flush valve and entering the bowl. Installation involves disassembling the tank from the bowl by removing the three (3) brass bolts (set aside for re-installation). Note the orientation of the flush valve to the tank rear bolt hole before removing, so that the bolt hole is not covered by the new flush valve when installed. A large set of lock-jaw pliers (i.e., Channel Lock) may be needed to remove the large nylon nut securing the old flush valve to the tank. Install the new triangular tank gasket and flush valve to the tank, orienting the flush valve as previously noted (to not cover rear bolt hole) before tightening the large nylon nut. Reattach the tank to the bowl, carefully following instructions to alternate tightening the three (3) bolts a small amount at a time. If the tank gasket leaks at bowl attachment point after installation, remove tank, re-seat and tighten bolts as described above. Other reviewers suggested purchasing replacement bolts, but the flush valve kit that I received included bolt, washer and nut hardware for installation. I decided to use my original brass hardware (old school) which were in good condition, instead of the hardware provided with the kit which included zinc bolts with plastic coated heads. I noted that the replacement flush valve is a lighter gauge plastic than the original part, but that should not affect its operation. It's possibe that I could have just replaced the flush valve rubber washer (Part 53154, replaced by 1145626) and bowl gasket (51487, replaced by GP51487) assuming that the flush valve plastic did not have a crack, but it's probably safer to just buy the entire 85406 assembly which also includes a new Kohler flapper. See Kohler 4620 toilet Parts Diagram on Kohler web site. Also check out videos on the Kohler web site and Youtube for more instructions.

## Frequently Bought Together

- Kohler Part 85406 2" Toilet Flush Valve Kit, Colors may vary
- KOHLER Silent Fill Toilet Valve Kit, Genuine Part GP1138930, Adjustable with Multiple Fill-Rate Inserts
- Kohler Genuine Part Gp1083167 Silent Fill Valve Kit For All Kohler Class Five Toilets,12.5" x 3.5" x 3"

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-05*