---
product_id: 13817877
title: "Toto TSU01W.10R 10\" UNIFIT TRAPWAY FOR MS874S,MS884,MS904"
brand: "toto"
price: "¥26169"
currency: JPY
in_stock: true
reviews_count: 9
category: "Toto"
url: https://www.desertcart.jp/products/13817877-toto-tsu01w-10r-10-unifit-trapway-for-ms874s-ms884-ms904
store_origin: JP
region: Japan
---

# 10-inch universal fit optimized for MS874S, MS884, MS904 durable vitreous china build Toto TSU01W.10R 10" UNIFIT TRAPWAY FOR MS874S,MS884,MS904

**Brand:** toto
**Price:** ¥26169
**Availability:** ✅ In Stock

## Summary

> 🚽 Upgrade your throne with Toto’s flawless fit—because your bathroom deserves the best!

## Quick Answers

- **What is this?** Toto TSU01W.10R 10" UNIFIT TRAPWAY FOR MS874S,MS884,MS904 by toto
- **How much does it cost?** ¥26169 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/13817877-toto-tsu01w-10r-10-unifit-trapway-for-ms874s-ms884-ms904)

## Best For

- toto enthusiasts

## Why This Product

- Trusted toto brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Integrated Improved Gasket:** Eliminates leaks and unpleasant odors—goodbye mystery bathroom smells!
- • **Precision 10-Inch Unifit Design:** Seamlessly replaces older trapways for a perfect fit every time.
- • **Premium Vitreous China Material:** Engineered for long-lasting durability and a sleek, clean finish.
- • **Compatible with Select Toto Models:** Specifically crafted for MS874S, MS884, and MS904 toilets to ensure flawless performance.
- • **Easy Installation & Genuine Toto Quality:** Save time and money with a trusted replacement part that fits like a glove.

## Overview

The Toto TSU01W.10R is a 10-inch unifit trapway replacement part designed specifically for Toto MS874S, MS884, and MS904 models. Made from durable vitreous china, it features an improved integrated gasket that prevents leaks and odors, ensuring a quiet, efficient flush. This genuine Toto component offers an easy installation and a perfect fit, extending the life of your toilet without the need for a full replacement.

## Description

Product Description 10" UNIFIT TRAPWAY FOR MS874S,MS884,MS904 From the Manufacturer When it comes to Toto, being just the newest and most advanced product has never been nor needed to be the primary focus. Toto's ideas start with the people, and discovering what they need and want to help them in their daily lives. The days of things being pretty just for pretty's sake are over. When it comes to Toto you will get it all. A beautiful design, with high quality parts, inside and out, that will last longer than you ever expected.

Review: Perfect replacement after the old gasket got loose - I used this trapway as a replacement part for my 12 year old Toto after the black rubber gasket slipped out of place from age and pressure from plunging the toilet. I first tried to find the gasket for sale but discovered that not onky is it is not sold separately but also the gasket has been redesigned and improved, and is integrated into the trapway. The new piece fit perfectly and the new design was actually a big improvement over the old one. It no longer makes the dripping sound after flushing, typical of older roughed in Toto toilets. Also since the gasket is better fitting, the bad mystery smell that was plaguing the bathroom is gone, it must have been sewer gasses escaping through the loose gasket. I'm so glad that I tried this rather than replacing the toliet!
Review: Fit and genuine product at a cheaper price. - Fit and genuine product at a cheaper price.

## Features

- Not_applicable
- Ten-Inch size
- Unfit rough-in
- Not compatible with all Toto models

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005XNVH4C |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #264,451 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #483 in Toilet Replacement Parts |
| Brand | TOTO |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (73) |
| Date First Available | July 2, 2010 |
| Finish | Gray |
| Global Trade Identification Number | 00739268187719 |
| Included Components | Toto TSU01W.10R |
| Installation Type | Floor Mounted |
| Item Package Quantity | 1 |
| Item Weight | 1 pounds |
| Item model number | TSU01W.10R |
| Manufacturer | TOTO |
| Material | Vitreous China |
| Part Number | TSU01W.10R |
| Product Dimensions | 2.75"D x 2.25"W x 8.5"H |
| Seat Material Type | Plastic |
| Shape | open-front |
| Size | 10 inches |
| Style | Unifit |
| UPC | 739268187719 |

## Product Details

- **Brand:** TOTO
- **Color:** White
- **Item Weight:** 16 ounces
- **Material:** Vitreous China
- **Product Dimensions:** 2.75"D x 2.25"W x 8.5"H

## Images

![Toto TSU01W.10R 10" UNIFIT TRAPWAY FOR MS874S,MS884,MS904 - Image 1](https://m.media-amazon.com/images/I/310s0T2Ih8L.jpg)
![Toto TSU01W.10R 10" UNIFIT TRAPWAY FOR MS874S,MS884,MS904 - Image 2](https://m.media-amazon.com/images/I/51xEwuSR+vL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect replacement after the old gasket got loose
*by R***E on December 28, 2015*

I used this trapway as a replacement part for my 12 year old Toto after the black rubber gasket slipped out of place from age and pressure from plunging the toilet. I first tried to find the gasket for sale but discovered that not onky is it is not sold separately but also the gasket has been redesigned and improved, and is integrated into the trapway. The new piece fit perfectly and the new design was actually a big improvement over the old one. It no longer makes the dripping sound after flushing, typical of older roughed in Toto toilets. Also since the gasket is better fitting, the bad mystery smell that was plaguing the bathroom is gone, it must have been sewer gasses escaping through the loose gasket. I'm so glad that I tried this rather than replacing the toliet!

### ⭐⭐⭐⭐⭐ Fit and genuine product at a cheaper price.
*by B***A on December 6, 2025*

Fit and genuine product at a cheaper price.

### ⭐⭐⭐⭐⭐ The part I needed delivered quickly
*by K***L on March 12, 2025*

This was the part I needed in order to be able to install the new toilet we bought. It arrived quickly and was much less than purchasing elsewhere.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-17*