---
product_id: 3591542
title: "KOHLER GENUINE PART GP1078440 FLAPPER (SHARK-FIN)"
brand: "kohler"
price: "฿1170"
currency: THB
in_stock: true
reviews_count: 13
category: "Kohler"
url: https://www.desertcart.co.th/products/3591542-kohler-genuine-part-gp1078440-flapper-shark-fin
store_origin: TH
region: Thailand
---

# 2" shark-fin design for precise fit Engineered for specific KOHLER models Corrosion-resistant rubber for durability KOHLER GENUINE PART GP1078440 FLAPPER (SHARK-FIN)

**Brand:** kohler
**Price:** ฿1170
**Availability:** ✅ In Stock

## Summary

> 🦈 Flush like a pro with KOHLER’s shark-fin precision!

## Quick Answers

- **What is this?** KOHLER GENUINE PART GP1078440 FLAPPER (SHARK-FIN) by kohler
- **How much does it cost?** ฿1170 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/3591542-kohler-genuine-part-gp1078440-flapper-shark-fin)

## 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

- • **Built to Last:** Corrosion-resistant rubber material guarantees long-term reliability and performance.
- • **Genuine KOHLER Quality:** Designed by KOHLER engineers to maintain original product standards and extend toilet lifespan.
- • **Precision Shark-Fin Fit:** Custom 2-inch flapper ensures leak-free flushes tailored to select KOHLER toilets.
- • **Model-Specific Compatibility:** Perfectly matches top KOHLER models like Memoirs, Gabrielle, and Devonshire—no more guesswork.
- • **Easy Installation & Peace of Mind:** Simple swap-in replacement with clear sizing to avoid the frustration of universal flappers.

## Overview

The KOHLER Genuine Part GP1078440 Shark-Fin Flapper is a 2-inch corrosion-resistant rubber valve designed specifically for select KOHLER one-piece toilets. Engineered by KOHLER to ensure optimal flushing performance and durability, it fits models such as Memoirs, Gabrielle, and Devonshire. This OEM part guarantees a precise fit and easy installation, preventing leaks and running water issues common with universal flappers.

## Description

Product Description Protect the 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. Compatible with the following Kohler models: Memoirs 3451, 3453, Gabrielle 3322, Santa Rosa 3323, Kathryn 3324, San Raphael 3384 Devonshire 3488, Revival 3360, Ankara 14230-TF, Rialto 3386. From the Manufacturer Kohler Genuine Part, Toilet Flapper, Used in various one piece toilets.

Review: OEM part - OEM part - works as it should. Buy with confindent!
Review: Confirm compatibility by dimensions, not just model numbers - Ordered this for my Kohler San Raphael (2002). I was happy to finally find a replacement flapper specifically for my toilet model. I’ve been using universal flappers the last few years and they always eventually end up being too large and wobbly for my toilet, which leads to the constant running water issue. My exact model number was listed on the product listing and even on the packaging for this flapper, however it ended up being too small. I honestly thought I was losing my mind and kept trying different ways to make it work… but it’s simply too short. When installed it sits too snug and stays partially open. I tried repositioning it on the back multiple times and nothing fixed it. I can’t leave a bad review for this because the product seems very good quality and it was easy to install. It just didn’t fit. I did however return it and eventually found the correct part for my toilet, which was just a touch longer, and now everything works perfectly. Just a heads up to double check measurements, because even toilets from the same model line may require different flapper lengths depending on the year or configuration. Bottom line: confirm compatibility by dimensions, not just model numbers, to save yourself the frustration.

## Features

- Protect the on KOHLER products, always look for the KOHLER GENUINE PARTS logo
- 2" shark-fin flapper for various one-piece toilets
- Corrosion resistant
- Compatible with the following KOHLER models: Memoirs 3451, 3453, Gabrielle 3322, Santa Rosa 3323, Kathryn 3324, San Raphael 3384 Devonshire 3488, Revival 3360, Ankara 14230-TF, Rialto 3386
- Note: The two inches should be measured at center to center of the inside of the flapper (where the arms of the rubber flapper would attach to the flush valve when installing). This measurement on this service part should be 2.1 inches making it a 2-inch flapper
- NOT A UNIVERSAL FIT: intended for specific models stated above

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001GZUMTC |
| Best Sellers Rank | #16,006 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #8 in Sink & Bathtub Faucet Spouts #17 in Toilet Flappers |
| Brand Name | Kohler |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,512) |
| Exterior Finish | painted |
| Global Trade Identification Number | 00650531662668 |
| Included Components | TOILET FLAPPER |
| Inlet Connection Size | 2 Inches |
| Inlet Connection Type | Barb |
| Item Dimensions | 4 x 3.25 x 3 inches |
| Item Type Name | KOHLER GENUINE PART GP1078440 FLAPPER (SHARK-FIN) |
| Item Weight | 50 Grams |
| Manufacturer | KOHLER |
| Material Type | Rubber |
| Model Number | GP1078440 |
| Number of Pieces | 1 |
| Number of Ports | 2 |
| Outlet Connection Size | 2 Inches |
| Outlet Connection Type | Barb |
| Size | 1 Count (Pack of 1) |
| Thread Size | 2 inches |
| Thread Type | Standard |
| UPC | 650531662668 |
| Unit Count | 1.0 Count |
| Valve Type | flapper valve |

## Product Details

- **Brand:** Kohler
- **Exterior Finish:** painted
- **Global Trade Identification Number:** 00650531662668
- **Inlet Connection Size:** 2 Inches
- **Inlet Connection Type:** Barb
- **Item dimensions L x W x H:** 4 x 3.25 x 3 inches
- **Material:** Rubber
- **Number of Ports:** 2
- **Outlet Connection Size:** 2 Inches
- **Outlet Connection Type:** Barb

## Images

![KOHLER GENUINE PART GP1078440 FLAPPER (SHARK-FIN) - Image 1](https://m.media-amazon.com/images/I/81i9k8KMwcL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ OEM part
*by T***V on December 29, 2025*

OEM part - works as it should. Buy with confindent!

### ⭐⭐⭐⭐⭐ Confirm compatibility by dimensions, not just model numbers
*by L***Z on January 11, 2026*

Ordered this for my Kohler San Raphael (2002). I was happy to finally find a replacement flapper specifically for my toilet model. I’ve been using universal flappers the last few years and they always eventually end up being too large and wobbly for my toilet, which leads to the constant running water issue. My exact model number was listed on the product listing and even on the packaging for this flapper, however it ended up being too small. I honestly thought I was losing my mind and kept trying different ways to make it work… but it’s simply too short. When installed it sits too snug and stays partially open. I tried repositioning it on the back multiple times and nothing fixed it. I can’t leave a bad review for this because the product seems very good quality and it was easy to install. It just didn’t fit. I did however return it and eventually found the correct part for my toilet, which was just a touch longer, and now everything works perfectly. Just a heads up to double check measurements, because even toilets from the same model line may require different flapper lengths depending on the year or configuration. Bottom line: confirm compatibility by dimensions, not just model numbers, to save yourself the frustration.

### ⭐⭐⭐⭐⭐ great product
*by E***Z on August 5, 2025*

great product

## Frequently Bought Together

- KOHLER GENUINE PART GP1078440 FLAPPER (SHARK-FIN)
- KOHLER Silent Fill Toilet Valve Kit, Genuine Part GP1138930, Adjustable with Multiple Fill-Rate Inserts

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-06-11*