---
product_id: 74355234
title: "Kohler GP83996 4.06-Inch by 2.56-Inch ID Flush Valve Gasket"
price: "77.39 DT"
currency: TND
in_stock: false
reviews_count: 8
url: https://www.desertcart.tn/products/74355234-kohler-gp83996-4-06-inch-by-2-56-inch-id
store_origin: TN
region: Tunisia
---

# Genuine Kohler OEM part Rigid straight-edge design Precision 2" gasket seal Kohler GP83996 4.06-Inch by 2.56-Inch ID Flush Valve Gasket

**Price:** 77.39 DT
**Availability:** ❌ Out of Stock

## Summary

> 🚽 Upgrade your flush game with Kohler’s precision gasket!

## Quick Answers

- **What is this?** Kohler GP83996 4.06-Inch by 2.56-Inch ID Flush Valve Gasket
- **How much does it cost?** 77.39 DT with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/74355234-kohler-gp83996-4-06-inch-by-2-56-inch-id)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Rigid Edges:** Straight, firm edges prevent warping and maintain tight fit
- • **Trusted Genuine Part:** Kohler OEM quality guarantees long-lasting performance
- • **Effortless Replacement:** Simple swap with canister valves—no plumber needed
- • **Perfect Seal Every Time:** 2-inch gasket ensures leak-proof flush valve connection
- • **Engineered for One-Piece Toilets:** Specifically designed for Kohler’s integrated tank models

## Overview

The Kohler GP83996 is a genuine OEM 2-inch flush valve gasket designed exclusively for one-piece Kohler toilets. Featuring rigid straight edges for a secure, leak-proof seal, it ensures reliable performance and easy installation with canister valves. Backed by high customer ratings, this gasket is the essential upgrade for maintaining your Kohler toilet’s flawless flush.

## Description

Kohler GP83996 Gasket

Review: Good replacement unit. - Did the trick. If, like me, you have a solid toilet (tank and reservoir a single unit), have a pipe handy to easily uninstall and reinstall flush drain pipe. Otherwise, can be a bearcat. YouTube has a good video.
Review: Worked great and no leaks - Simple replacement for a gasket which was dissolving. Easy fix. Worked great and no leaks

## Features

- Replacement flush valve gasket for various one-piece Kohler toilets
- 2" gasket seals flush valve to the tank
- Gasket has straight, rigid edges
- Use with canister valves
- Kohler GENUINE Part
- Not a universal fit
- KO.83996 is Kohler part number

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.6 out of 5 stars 423 Reviews |

## Product Details

- **Brand:** KOHLER
- **Color:** Unfinished
- **Shape:** Rectangular
- **UPC:** 885612376343
- **Manufacturer:** KOHLER

## Images

![Kohler GP83996 4.06-Inch by 2.56-Inch ID Flush Valve Gasket - Image 1](https://m.media-amazon.com/images/I/71KygOLHL1L.jpg)
![Kohler GP83996 4.06-Inch by 2.56-Inch ID Flush Valve Gasket - Image 2](https://m.media-amazon.com/images/I/711a5bc0e4L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked great and no leaks
*by R***F on September 17, 2025*

Simple replacement for a gasket which was dissolving. Easy fix. Worked great and no leaks

### ⭐⭐⭐⭐⭐ Use this official Kohler gasket, not a third party gasket.
*by T***D on July 26, 2025*

I bought multiple third-party gasket and couldn't get them installed. What I found with off-brand gaskets is that the rubber material is quite different from that used by Kohler. It was so difficult to compress that I couldn't install the flush valve assembly. The hack to getting even the Kohler gasket installed is to compress-and-freeze the gasket, place it on the valve assembly, and, before it can thaw and expand, insert the gasket and rotate the assembly into place. That trick doesn't work with third party gaskets I tried. It worked perfectly with the official Kohler gasket.

### ⭐⭐⭐⭐⭐ Fits with a little heat and persuasion
*by P***H on October 30, 2024*

It feels like the most midlife thing to do: a review for a toilet tank gasket! Anyway, I have a Santa Rosa one-piece toilet and the gasket was disintegrating from using cleaners in the tank itself (bad idea). This gasket fits if you put it in hot water for 5 minutes before installing it. Needs a good bit of strength for the flange to clip back onto the bottom of the tank but it works. Sure beats calling a plumber for $150!

## Frequently Bought Together

- Kohler GP83996 4.06-Inch by 2.56-Inch ID Flush Valve Gasket
- KOHLER GENUINE PART GP1039444 FLAPPER FOR ONE-PIECE TOILETS WITH CLASS FIVE TECHNOLOGY

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**Shop now:** [https://www.desertcart.tn/products/74355234-kohler-gp83996-4-06-inch-by-2-56-inch-id](https://www.desertcart.tn/products/74355234-kohler-gp83996-4-06-inch-by-2-56-inch-id)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-14*