--- product_id: 343370197 title: "Kohler K1078578 Flush Valve Assembly Kit" brand: "kohler" price: "19915 kr" currency: ISK in_stock: true reviews_count: 5 category: "Kohler" url: https://www.desertcart.is/products/343370197-kohler-k1078578-flush-valve-assembly-kit store_origin: IS region: Iceland --- # 2-minute quick installation Brass construction for durability Made in the USA for trusted quality Kohler K1078578 Flush Valve Assembly Kit **Brand:** kohler **Price:** 19915 kr **Availability:** ✅ In Stock ## Summary > 🚿 Upgrade your flush game with KOHLER’s precision-engineered brass valve kit! ## Quick Answers - **What is this?** Kohler K1078578 Flush Valve Assembly Kit by kohler - **How much does it cost?** 19915 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/343370197-kohler-k1078578-flush-valve-assembly-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 - • **Premium Brass Build:** Solid brass construction resists corrosion and wear, delivering reliable function over time. - • **Precision Connections:** Standard 2-1/2 inch NPT threads and compression/sweat inlet/outlet ensure seamless compatibility. - • **Warranty-Safe Upgrade:** Maintain your KOHLER product warranty by choosing authentic parts designed by KOHLER engineers. - • **Effortless Installation:** Tight fit design lets you upgrade your flush valve in just 2 minutes—no plumber needed. - • **Engineered for Longevity:** Genuine KOHLER parts ensure peak performance and extended product life. ## Overview The Kohler K1078578 Flush Valve Assembly Kit is a durable, brass-constructed plumbing component designed and manufactured in the USA. It features a quick 2-minute installation with tight-fit connections, standard 2-1/2 inch NPT threading, and meets multiple industry specifications (ANSI, ASME, CSA, NSF, ULC). This genuine KOHLER part ensures optimal performance and warranty protection for your KOHLER plumbing fixtures. ## 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. Review: Good OEM part and, yep, a bit tricky to install - Instructions to recommend wetting the o-ring gasket and I soaked it underwater for 10 or so mins as another reviewer recommended. That certainly helps but it does indeed still take significant pulling force towards the “front” wall to get the three plastic teeth seated deep enough to allow then turning it into place. The three plastic teeth are fairly robust but it is a bit of an anxious moment when pulling hard and turning the smaller plastic bits into place against the unforgiving porcelain. I found it helpful to (without the seal) mark in pencil on the “back” wall the exact angle position of the piece where the three teeth perfectly align with the three areas that accommodate the teeth, so I knew it was in the best position when pulling hard with the gasket on. Can see why the clamp squish and freeze method would be helpful to eliminate the need to pull hard while installing. Works well when installed. OEM kohler box and parts. Good that Kohler moved away from using this part in subsequent models. It’s a relatively unique plastic part not available in local hardware stores and when your old part breaks (the plastic teeth on my 23 year old original part broke while I was trying to replace the flapper) you want the most essential parts of your toilet that occasionally need replacing to be parts that are available ASAP in local stores. Review: Tight fit - This worked but it was way to hard to install. The gasket is too thick. I had to clamp the gasket between two boards and freeze it. Then I installed it while it was still frozen and squished down. It expands and seals in a few minutes. ## Features - Package Dimensions: 8.7 L x 5.15 H x 10.55 W (inches) - Package Weight : 0.82 pounds - Country of Origin : United States - Brass construction ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B003H49MLY | | Best Sellers Rank | #371,003 in Home Improvement ( See Top 100 in Home Improvement ) #626 in Flush Valves | | Brand | Kohler | | Brand Name | Kohler | | Connector Type | Barb | | Customer Reviews | 4.6 out of 5 stars 674 Reviews | | Exterior Finish | Brass | | Global Trade Identification Number | 00650531581600 | | Included Components | FLUSH VALVE ASSEMBLY KIT | | Inlet Connection Size | 10.35 Inches | | Inlet Connection Type | Compression | | Item Dimensions | 21.6 x 26.3 x 12.6 Centimeters | | Item Type Name | Flush Valve Assembly Kit | | Item Weight | 6.7 Ounces | | Item dimensions L x W x H | 21.6 x 26.3 x 12.6 Centimeters | | Manufacturer | Kohler | | Manufacturer Part Number | 471147 | | Material | Brass | | Material Type | Brass | | Model Number | 471147 | | Number of Ports | 2 | | Outlet Connection Size | 10.35 Inches | | Outlet Connection Type | Sweat | | Size | 0.75 x 3.25 x 10.00 inches | | Smart Home Compatibility | Not Smart Home Compatible | | Specification Met | ANSI B16.11, ASME B16.34, CSA, NSF, ULC | | Thread Size | 2-1/2 inches | | Thread Type | NPT | | UPC | 650531581600 | | Unit Count | 1.0 Count | | Valve Type | Globe Valve | ## Product Details - **Material:** Brass - **Brand:** Kohler - **Item dimensions L x W x H:** 21.6 x 26.3 x 12.6 Centimeters - **Exterior Finish:** Brass - **Inlet Connection Size:** 10.35 Inches - **Inlet Connection Type:** Compression - **Outlet Connection Type:** Sweat - **Number of Ports:** 2 - **Specification Met:** ANSI B16.11, ASME B16.34, CSA, NSF, ULC - **Global Trade Identification Number:** 00650531581600 ## Images ![Kohler K1078578 Flush Valve Assembly Kit - Image 1](https://m.media-amazon.com/images/I/61VF3cSPXvL.jpg) ## Questions & Answers **Q: Does the k1078578 replace the 84679-aa flush valve assembly?** A: Suggest you ask Kohler directly. **Q: what is diameter of connection holes in kohler k1078578 flush valve?** A: Don't know but genuine Kohler part should work. **Q: Which is the height?** A: 8.5 x 10.35 x 4.95 inches exact measurements **Q: What is the difference between this and 84996 ? Also, says "constructed of brass"???** A: The 1078578 and 84996 are the same- the 1078578 is the current part number. Either one is fine...the 84996 has probably been sitting around awhile but that is the only difference. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good OEM part and, yep, a bit tricky to install *by B***S on 5 December 2024* Instructions to recommend wetting the o-ring gasket and I soaked it underwater for 10 or so mins as another reviewer recommended. That certainly helps but it does indeed still take significant pulling force towards the “front” wall to get the three plastic teeth seated deep enough to allow then turning it into place. The three plastic teeth are fairly robust but it is a bit of an anxious moment when pulling hard and turning the smaller plastic bits into place against the unforgiving porcelain. I found it helpful to (without the seal) mark in pencil on the “back” wall the exact angle position of the piece where the three teeth perfectly align with the three areas that accommodate the teeth, so I knew it was in the best position when pulling hard with the gasket on. Can see why the clamp squish and freeze method would be helpful to eliminate the need to pull hard while installing. Works well when installed. OEM kohler box and parts. Good that Kohler moved away from using this part in subsequent models. It’s a relatively unique plastic part not available in local hardware stores and when your old part breaks (the plastic teeth on my 23 year old original part broke while I was trying to replace the flapper) you want the most essential parts of your toilet that occasionally need replacing to be parts that are available ASAP in local stores. ### ⭐⭐⭐⭐⭐ Tight fit *by S***E on 18 November 2024* This worked but it was way to hard to install. The gasket is too thick. I had to clamp the gasket between two boards and freeze it. Then I installed it while it was still frozen and squished down. It expands and seals in a few minutes. ### ⭐⭐⭐⭐⭐ Excelente Servicio *by A***Z on 14 April 2025* Todo bien, le quedó perfecto ## Frequently Bought Together - KOHLER 471147 Genuine Part Flush Valve Assembly Kit, 0.75 x 3.25 x 10.00 inches - KOHLER GENUINE PART GP1068030 FILL VALVE FOR ONE-PIECE TOILETS --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.is/products/343370197-kohler-k1078578-flush-valve-assembly-kit](https://www.desertcart.is/products/343370197-kohler-k1078578-flush-valve-assembly-kit) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-06-06*