---
product_id: 87977033
title: "Kohler 1044458 Flush Valve Kit"
brand: "kohler"
price: "€ 85.65"
currency: EUR
in_stock: true
reviews_count: 8
category: "Kohler"
url: https://www.desertcart.pt/products/87977033-kohler-1044458-flush-valve-kit
store_origin: PT
region: Portugal
---

# Genuine KOHLER engineered part 2-inch NPT thread size Premium metal for durability Kohler 1044458 Flush Valve Kit

**Brand:** kohler
**Price:** € 85.65
**Availability:** ✅ In Stock

## Summary

> 🚽 Upgrade your flush game with KOHLER’s precision-engineered valve kit!

## Quick Answers

- **What is this?** Kohler 1044458 Flush Valve Kit by kohler
- **How much does it cost?** € 85.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/87977033-kohler-1044458-flush-valve-kit)

## 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 DIY Upgrade:** Installation tips included for a smooth, hassle-free replacement that restores factory performance.
- • **Durability You Can Trust:** Crafted from premium metal materials to withstand daily use and extend your toilet’s lifespan.
- • **Warranty-Safe Replacement:** Protect your KOHLER product warranty by choosing only genuine KOHLER flush valve kits.
- • **Seamless 2-Inch Flare Connections:** Designed with standard 2-inch inlet and outlet flare fittings for easy, secure installation.
- • **Precision Engineered for Longevity:** KOHLER genuine parts ensure your flush valve performs like new, flush after flush.

## Overview

The KOHLER 1044458 Flush Valve Kit is a genuine replacement part designed to maintain original product performance and extend the life of your KOHLER toilet. Featuring durable metal construction and standard 2-inch NPT flare connections, this kit ensures a reliable, warranty-safe upgrade that’s easy to install and built to last.

## Description

Product Description Protect the warranty on KOHLER products, always look for the KOHLER genuine parts logo. KOHLER genuine parts are designed by KOHLER engineers to maintain original product performance and promote product longevity. From the Manufacturer Kohler replacement part; 1044458.Part number 1044458 is a flush valve kit. Flush valve kit No finish Kohler replacement parts.

Review: Install tip for easy replacement, as good as new! - Installation Tip: Apply mild soap between valve housing and rubber seal to allow rotation to lock into place. Perfect factory replacement flush valve for our one piece Kohler model # K3489 with tall tank. Works like new.
Review: Another helpful Tip! - This is a genuine KOHLER replacement part that is KOHLER quality, not some after market cheap copy such as a flapper I ordered when I was not paying attention! Thanks to TekLord's helpful instructions (see his comments) the installation went smoothly, but I could not have done it without his help!! My toilet is once again working the way it did when it was new, however I did learn one other tip that I'll pass on to you. I had adjusted the water level previously by turning the adjusting screw Clockwise so that it would allow a higher water level in the tank and consequently more water per flush. As I found out....It was a bad idea, as it caused me some problems. After installing the flush valve I shut the water line off at the wall so that I could tell if there was any leakage at all from the new Flush valve assembly. As I sat there watching it I saw the water level drop slowly to a certain point and then stop. I also noticed a thin stream of water coming from the fill tube running down the inside of the overflow pipe. I thought , "GREAT! Now I have to replace the the fill valve! :^( I went on line to see if I could find some instructions for checking the fill valve. I did, and in them I found that the tip of the water tube that runs from the fill valve has to be above the tank water level otherwise it syphons water back into the overflow. so I looked at the overflow tube again and found the proper water level mark...adjusted the water level screw counterclockwise to drop the water level to that mark and Voilà, the water stopped syphoning! I shut the water supply line off and waited 3 hours to check the tank water level. It stayed right at the level of the mark! YES !!!!!! :^)

## Features

- Protect the warranty on KOHLER products, always look for the KOHLER GENUINE PARTS logo
- Replacement flush valve kit
- Engineered to promote product longevity
- Made with premium materials for enhanced durability

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005WL28KC |
| Best Sellers Rank | #54,029 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #62 in Toilet Flush Valves #4,809 in Kitchen & Bath Fixtures |
| Brand | Kohler |
| Brand Name | Kohler |
| Connector Type | Flare |
| Customer Reviews | 4.7 out of 5 stars 572 Reviews |
| Exterior Finish | Unfinished |
| Global Trade Identification Number | 00650531286864 |
| Included Components | Flush Valve Kit |
| Inlet Connection Size | 2 Inches |
| Inlet Connection Type | Flare |
| Item Dimensions | 5.9 x 14.5 x 6.2 inches |
| Item Type Name | Genuine Repair Part |
| Item Weight | 16 ounces |
| Item dimensions L x W x H | 5.9 x 14.5 x 6.2 inches |
| Manufacturer | KOHLER |
| Material | Metal |
| Material Type | Metal |
| Model Number | 1044458 |
| Number of Ports | 2 |
| Outlet Connection Size | 2 Inches |
| Outlet Connection Type | Flare |
| Size | Medium |
| Specification Met | not_applicable |
| Thread Size | 2 inches |
| Thread Type | NPT |
| UPC | 650531286864 |
| Unit Count | 1.0 Count |
| Valve Type | Float Valve |

## Product Details

- **Brand:** Kohler
- **Exterior Finish:** Unfinished
- **Inlet Connection Size:** 2 Inches
- **Inlet Connection Type:** Flare
- **Item dimensions L x W x H:** 5.9 x 14.5 x 6.2 inches
- **Material:** Metal
- **Number of Ports:** 2
- **Outlet Connection Size:** 2 Inches
- **Outlet Connection Type:** Flare
- **Specification Met:** not_applicable

## Images

![Kohler 1044458 Flush Valve Kit - Image 1](https://m.media-amazon.com/images/I/71KPXTDmElL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Install tip for easy replacement, as good as new!
*by J***N on February 2, 2026*

Installation Tip: Apply mild soap between valve housing and rubber seal to allow rotation to lock into place. Perfect factory replacement flush valve for our one piece Kohler model # K3489 with tall tank. Works like new.

### ⭐⭐⭐⭐⭐ Another helpful Tip!
*by A***R on November 13, 2016*

This is a genuine KOHLER replacement part that is KOHLER quality, not some after market cheap copy such as a flapper I ordered when I was not paying attention! Thanks to TekLord's helpful instructions (see his comments) the installation went smoothly, but I could not have done it without his help!! My toilet is once again working the way it did when it was new, however I did learn one other tip that I'll pass on to you. I had adjusted the water level previously by turning the adjusting screw Clockwise so that it would allow a higher water level in the tank and consequently more water per flush. As I found out....It was a bad idea, as it caused me some problems. After installing the flush valve I shut the water line off at the wall so that I could tell if there was any leakage at all from the new Flush valve assembly. As I sat there watching it I saw the water level drop slowly to a certain point and then stop. I also noticed a thin stream of water coming from the fill tube running down the inside of the overflow pipe. I thought , "GREAT! Now I have to replace the the fill valve! :^( I went on line to see if I could find some instructions for checking the fill valve. I did, and in them I found that the tip of the water tube that runs from the fill valve has to be above the tank water level otherwise it syphons water back into the overflow. so I looked at the overflow tube again and found the proper water level mark...adjusted the water level screw counterclockwise to drop the water level to that mark and Voilà, the water stopped syphoning! I shut the water supply line off and waited 3 hours to check the tank water level. It stayed right at the level of the mark! YES !!!!!! :^)

### ⭐⭐⭐⭐⭐ Works perfect
*by R***R on January 1, 2026*

Exact replacement part for a Kohler one piece toilet

## Frequently Bought Together

- Kohler 1044458 Flush Valve Kit
- Kohler Genuine Part Gp1083167 Silent Fill Valve Kit For All Kohler Class Five Toilets,12.5" x 3.5" x 3"
- KOHLER GENUINE PART GP1039444 FLAPPER FOR ONE-PIECE TOILETS WITH CLASS FIVE TECHNOLOGY

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-24*