---
product_id: 3591542
title: "GENUINE PART GP1078440 FLAPPER (SHARK-FIN)"
brand: "kohler"
price: "€ 20.01"
currency: EUR
in_stock: true
reviews_count: 13
category: "Kohler"
url: https://www.desertcart.it/products/3591542-genuine-part-gp1078440-flapper-shark-fin
store_origin: IT
region: Italy
---

# Vibrant red finish 2.1-inch precision fit Corrosion resistant rubber GENUINE PART GP1078440 FLAPPER (SHARK-FIN)

**Brand:** kohler
**Price:** € 20.01
**Availability:** ✅ In Stock

## Summary

> 🔴 Upgrade your flush game with KOHLER’s Shark-Fin precision!

## Quick Answers

- **What is this?** GENUINE PART GP1078440 FLAPPER (SHARK-FIN) by kohler
- **How much does it cost?** € 20.01 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/3591542-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

- • **Easy Installation:** 2-inch center-to-center flapper size with clear fitment guidance for hassle-free replacement.
- • **Trusted by Thousands:** Highly rated with 4.5 stars from over 1,500 users who demand reliability and peace of mind.
- • **Authentic KOHLER Quality:** Genuine KOHLER part engineered by KOHLER experts to maintain original product integrity and performance.
- • **Precision Engineered Fit:** Specifically designed for select KOHLER models ensuring flawless compatibility and leak-free performance.
- • **Durable Corrosion Resistance:** Crafted from premium rubber materials that resist corrosion, extending the lifespan of your toilet’s flush system.

## Overview

The KOHLER Genuine Part GP1078440 Shark-Fin Flapper is a 2.1-inch rubber flapper designed exclusively for select KOHLER one-piece toilets. Engineered for corrosion resistance and durability, it ensures a perfect fit and optimal flushing performance. Trusted by thousands, this vibrant red flapper maintains your toilet’s original efficiency and longevity.

## 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: great product - great product

## 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 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #17,025 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #9 in Sink & Bathtub Faucet Spouts #20 in Toilet Flappers |
| Brand | Kohler |
| Color | Red |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,500) |
| Date First Available | September 30, 2008 |
| Exterior Finish | painted |
| Finish | Red |
| Global Trade Identification Number | 00650531662668 |
| Included Components | TOILET FLAPPER |
| Inlet Connection Size | 2 Inches |
| Inlet Connection Type | Flange |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1.76 ounces |
| Item dimensions L x W x H | 4 x 3.25 x 3 inches |
| Item model number | GP1078440 |
| Manufacturer | KOHLER |
| Material | Rubber |
| Number of Ports | 2 |
| Outlet Connection Size | 2 Inches |
| Outlet Connection Type | Barb |
| Part Number | GP1078440 |
| Product Dimensions | 4 x 3.25 x 3 inches |
| Shape | shape |
| Size | 1 Count (Pack of 1) |
| UPC | 650531662668 |
| Usage | specific_uses_for_product |

## Product Details

- **Brand:** Kohler
- **Exterior Finish:** painted
- **Global Trade Identification Number:** 00650531662668
- **Inlet Connection Size:** 2 Inches
- **Inlet Connection Type:** Flange
- **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

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

## Customer Reviews

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

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

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

great product

### ⭐⭐⭐⭐⭐ 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.

## 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 Italy*
*Store origin: IT*
*Last updated: 2026-03-09*