---
product_id: 59144312
title: "Kohler GP1138930 Universal Fill Valve for Most Toilets"
brand: "kohler"
price: "513.15 DT"
currency: TND
in_stock: true
reviews_count: 6
url: https://www.desertcart.tn/products/59144312-kohler-gp1138930-universal-fill-valve-for-most-toilets
store_origin: TN
region: Tunisia
---

# Water-saving inserts Silent fill tech Adjustable height fit Kohler GP1138930 Universal Fill Valve for Most Toilets

**Brand:** kohler
**Price:** 513.15 DT
**Availability:** ✅ In Stock

## Summary

> 🚽 Upgrade your throne with silent, smart hydration!

## Quick Answers

- **What is this?** Kohler GP1138930 Universal Fill Valve for Most Toilets by kohler
- **How much does it cost?** 513.15 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/59144312-kohler-gp1138930-universal-fill-valve-for-most-toilets)

## 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

- • **Genuine Kohler Quality:** Built to OEM standards for reliable performance and peace of mind.
- • **Universal Compatibility:** Adjustable height design fits most Kohler toilets, ensuring seamless installation.
- • **Whisper-Quiet Operation:** Experience tranquility with silent fill technology that eliminates noisy refills.
- • **Eco-Friendly Water Control:** Multiple fill-rate inserts optimize water use, cutting waste without sacrificing performance.
- • **Top-Access Adjustment Knob:** Easily customize fill levels from above the tank—no hassle, no tools needed.

## Overview

The Kohler GP1138930 Universal Fill Valve is a genuine OEM replacement part designed for most Kohler toilets. It features silent fill technology for noise-free tank refills, multiple water-conserving fill-rate inserts, and an adjustable height to fit various models. With easy top-access adjustment and durable construction, it balances efficiency and convenience for a superior bathroom upgrade.

## Description

Kohler Genuine Part, Fill Valve, For most Kohler toilets.

Review: definitely not long lasting - lasted 6 weeks
Review: Silent fill, easy to adjust but special connector thread - The connector (7/8 ballcock) is special and not listed in the documentation. In Singapore this is not common and I had to order an special braided hose with the correct connector. But the fill valve is well built, easy to adjust the fill levels from the top knob.

## Features

- KOHLER GENUINE PART
- Silent Fill provides a gracious experience by filling the tank quietly.
- Multiple fill-rate inserts are provided to optimize performance and conserve water.
- Adjustable to accommodate any height, compatible with various KOHLER toilets.
- Confirm shank color to determine correct part; if grey, use this part and if black, use GP1083167. Cap color may vary.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003MH314U |
| Best Sellers Rank | 545,314 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,122 in Toilet Parts |
| Brand | Kohler |
| Customer Reviews | 4.6 out of 5 stars 4,941 Reviews |
| Exterior Finish | White |
| Exterior finish | White |
| Global Trade Identification Number | 00650531935076 |
| Inlet Connection Type | Thread |
| Inlet connection type | Thread |
| Item Dimensions | 33 x 8.9 x 7.6 centimetres |
| Item Weight | 1 Grams |
| Item dimensions L x W x H | 33 x 8.9 x 7.6 centimetres |
| Manufacturer | Kohler |
| Material | Plastic |
| Model Number | GP1138930 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.88 Inches |
| Outlet Connection Type | Fill |
| Outlet connection type | Fill |
| Part Number | GP1138930 |
| Size | 12.5" x 3.5" x 3" |
| Specification Met | RoHS, PED, MD |
| Thread Size | 0.875 tum |
| Thread Type | NPT |
| UPC | 650531935076 |
| Unit Count | 1.0 count |
| Valve Type | Ball Valve |

## Product Details

- **Brand:** Kohler
- **Exterior finish:** White
- **Inlet connection type:** Thread
- **Item dimensions L x W x H:** 33 x 8.9 x 7.6 centimetres
- **Material:** Plastic
- **Number of Packs:** 1
- **Number of ports:** 2
- **Outlet connection size:** 0.88 Inches
- **Outlet connection type:** Fill
- **Specification met:** RoHS, PED, MD

## Images

![Kohler GP1138930 Universal Fill Valve for Most Toilets - Image 1](https://m.media-amazon.com/images/I/51L8yOoCVEL.jpg)
![Kohler GP1138930 Universal Fill Valve for Most Toilets - Image 2](https://m.media-amazon.com/images/I/71kEfL92EzL.jpg)
![Kohler GP1138930 Universal Fill Valve for Most Toilets - Image 3](https://m.media-amazon.com/images/I/51zd3uAyiPL.jpg)
![Kohler GP1138930 Universal Fill Valve for Most Toilets - Image 4](https://m.media-amazon.com/images/I/51yiAtgtViL.jpg)
![Kohler GP1138930 Universal Fill Valve for Most Toilets - Image 5](https://m.media-amazon.com/images/I/61SBen2Lo9L.jpg)

## Questions & Answers

**Q: A reviewer complained that this is actually a Fluidmaster 400A.  Is that what you got or was that reviewer ripped off?**
A: It's a variation on the 400 series.  Fluidmaster makes maybe over a dozen different versions including OEM versions sold by Kohler, PerforMAX versions, ones with brass shanks, etc.  The only thing that seems to be exactly the same among all versions is the float and the (replaceable) seal.  Almost every Fluidmaster fill valve (including the 747PRO) uses the Model 242 seal.  As others noted, it comes with a set of restrictor inserts to reduce the amount of water going into the bowl.  You want to use the one that just manages to fill the bowl to the maximum around the same time as the tank is filled.  I found the green one is installed in 400A valves in an American Standard Cadet 3.  Those factory installed valves are EXACTLY the same as retail 400A valves, except for the insert and that they use a hex nut (which requires a tool to install/remove) rather than a wing nut that has to be tightened/loosened by hand.

Someone mentioned the roller clamp in the PerforMAX.  Fluidmaster has a newer one (400H) that uses a dial that varies the restriction.  Much easier to adjust than the roller clamp.  Fluidmaster has also been adding a bigger adjustment knob to most of its fill valves, so the photo might not reflect that yet.

**Q: I purchased a Kohler Fill Valve that requires you to adjust the length of the stem by turning one part in or out...Mine will not go smaller or larger?**
A: Mine had the same problem! It just spun. Somethign was stuck and I got extremely frustrated. The directions said to turn, but that did nothing. Turns out the whole base can be pulled straight out if the retaining collar is slid upward. After sliding that collar up, give it a good yank. Just don't break the valve and float at the top; I just about did. This fluidmaster video explains how. It's not the exact match, but is pretty much the same exact setup since Fluidmaster makes the official Kohler fill valve. Watch this video and you'll see what I mean: https://youtu.be/3Q-VzqqH5dg?t=1m22s

**Q: This says universal.  Can it replace the old ball and arm style fills valves?**
A: Well my Kohler toilet had a Ball and arm that came in it originally and it started leaking, and I used this to replace it. Was really quite easy to do, most difficult part is removing the water inside the tank that's left over after you turn off the water and flush. I used several old towels. You could also if you had enough space undo the fill valve and have a container to catch the water. Other than that its quite easy.

**Q: Does the Washer, Locknut and Clip come on this like the original Kohler part this replaced OR is it no longer needed with the new replacement?**
A: All required washer locknut and clip come inside the package- yes you still need them as it will install as an exact match to what was there previously

## Customer Reviews

### ⭐ definitely not long lasting
*by F***N on 18 November 2025*

lasted 6 weeks

### ⭐⭐⭐⭐⭐ Silent fill, easy to adjust but special connector thread
*by C***L on 18 May 2023*

The connector (7/8 ballcock) is special and not listed in the documentation. In Singapore this is not common and I had to order an special braided hose with the correct connector. But the fill valve is well built, easy to adjust the fill levels from the top knob.

### ⭐⭐⭐⭐⭐ great fit
*by J***I on 13 February 2026*

The Kohler Silent Fill Toilet Valve Kit is a reliable replacement part that made fixing my toilet much easier. It’s designed to replace an old or worn‑out fill valve on Kohler toilets, and the “silent fill” feature noticeably reduces the usual rumbling or loud refill noise after flushing. Installation was straightforward — I followed the instructions, and it fit well without any complicated plumbing tools. The height is adjustable so it can match the tank’s water level properly, and the adjustment helped me get the right fill rate easily. As an OEM (original equipment manufacturer) part, it feels solid and durable. Most users report that it works quietly and reliably after installation, though there are occasional reports of adjustment being a little tricky at first. Bottom line: If your toilet is noisy, runs constantly, or isn’t filling right, this silent fill valve kit is a practical and affordable way to restore smooth, quiet performance. Great value for a basic but essential toilet repair part.

## Frequently Bought Together

- KOHLER Silent Fill Toilet Valve Kit, Genuine Part GP1138930, Adjustable with Multiple Fill-Rate Inserts
- Kohler Part 85406 2" Toilet Flush Valve Kit, Colors may vary
- Kohler (BLUE PART GP85160 FLAPPER WITH FLOAT), 2, 2 In.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-18*