---
product_id: 5241828
title: "NO LEAK 20401 Engine Oil Stop Leak, 16 Fl oz."
brand: "no leak"
price: "VT1906"
currency: VUV
in_stock: false
reviews_count: 13
url: https://www.desertcart.vu/products/5241828-no-leak-20401-engine-oil-stop-leak-16-fl-oz
store_origin: VU
region: Vanuatu
---

# stops smoke & leaks rear main seal specialist 473ml precision formula NO LEAK 20401 Engine Oil Stop Leak, 16 Fl oz.

**Brand:** no leak
**Price:** VT1906
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Fix leaks like a pro—because your engine deserves the best!

## Quick Answers

- **What is this?** NO LEAK 20401 Engine Oil Stop Leak, 16 Fl oz. by no leak
- **How much does it cost?** VT1906 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/5241828-no-leak-20401-engine-oil-stop-leak-16-fl-oz)

## Best For

- no leak enthusiasts

## Why This Product

- Trusted no leak brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seal Savior:** Softens and rejuvenates dried, shrunken seals to instantly stop leaks.
- • **Smoke Stopper:** Effectively halts engine smoke caused by leaking seals for cleaner performance.
- • **Easy Pour Precision:** Clear 16 fl oz bottle designed for mess-free, exact application every time.
- • **Universal Compatibility:** Works seamlessly with ALL engine oils—no guesswork needed.
- • **Pro-Grade Rear Seal Repair:** Recommended specifically for tough rear main seal leaks—trusted by pros.

## Overview

NO LEAK 20401 Engine Oil Stop Leak is a 473ml liquid treatment designed to stop and prevent engine oil leaks by softening and conditioning rubber seals, especially effective for rear main seal repairs. Compatible with all engine oils, it also reduces engine smoke, ensuring cleaner, leak-free performance in a convenient, easy-to-pour bottle.

## Description

NO-LEAK brand safely swells, softens, and conditions the rubber seals, which stops the leak. Gold Eagle NO LEAK Engine Oil Treatment stops and prevents engine oil leaks. The formula is safe and compatible with all engine oils and is recommended for rear main seal repairs. It helps stop smoking and conditions seals. This product comes in a clear, easy to pour 473ml bottle. About Gold Eagle Co. Headquartered in the heart of Chicago's industrial hub, Gold Eagle Co. is a privately held company, founded in 1932 by Armin Hirsch. For more than 75 years, Gold Eagle has been an industry pioneer in the production and distribution of aftermarket fluids and additives as well as an innovator and leader in the product development, manufacturing, marketing, and distribution of branded engine performance and maintenance chemicals. The Retail and Installer Brands Group within Gold Eagle Co. markets and sells more than 100 branded products, while its Private Brands Group supplies over 400 different OEM and private branded products into the majority of the top engine-related original equipment manufacturers and retail marketers.

Review: excellent product, works as advdrtised, great price - this stuff works and doesn't harm engines. in fact, all the No Leak products actually stop leaks and I've been using all of the products for years in all my old vehicles. it will not stop catastrophic leaks. it does reseal leaking gaskets and seals, but you have to put more in every time you change your oil.
Review: didn't work for my car but the leaks are too ... - didn't work for my car but the leaks are too big. may work for minor leaks. been working on cars for over 30 years so may be worth a try for small leaks.

## Features

- Stops AND prevents engine oil leaks caused by dried, shrunken, or harden seals
- Recommended for rear main seal repair
- Stops smoke and repairs rear main seals
- Safe & compatible with ALL engine oils

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001B1A5YI |
| Brand | NO LEAK |
| Brand Name | NO LEAK |
| Container Type | Bottle |
| Customer Reviews | 4.0 out of 5 stars 448 Reviews |
| Global Trade Identification Number | 00073905204019 |
| Item Form | Liquid |
| Item Weight | 0.82 Pounds |
| Liquid Volume | 473 Milliliters |
| Manufacturer | Gold Eagle Co. |
| Model Number | 20401 |
| Number of Items | 1 |
| Package Information | Bottle |
| Part Number | 20401 |
| Recommended Uses For Product | rear main seal repair |
| UPC | 073905020046 073905204019 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Gold Eagle
- **Package Information:** Bottle
- **Liquid Volume:** 473 Milliliters
- **Item Weight:** 13.05 ounces
- **Recommended Uses For Product:** rear main seal repair

## Images

![NO LEAK 20401 Engine Oil Stop Leak, 16 Fl oz. - Image 1](https://m.media-amazon.com/images/I/81enbMOW9xL.jpg)
![NO LEAK 20401 Engine Oil Stop Leak, 16 Fl oz. - Image 2](https://m.media-amazon.com/images/I/51cgHSzE-FL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ excellent product, works as advdrtised, great price
*by E***R on August 4, 2018*

this stuff works and doesn't harm engines. in fact, all the No Leak products actually stop leaks and I've been using all of the products for years in all my old vehicles. it will not stop catastrophic leaks. it does reseal leaking gaskets and seals, but you have to put more in every time you change your oil.

### ⭐⭐⭐⭐ didn't work for my car but the leaks are too ...
*by A***I on September 15, 2015*

didn't work for my car but the leaks are too big. may work for minor leaks. been working on cars for over 30 years so may be worth a try for small leaks.

### ⭐⭐⭐ UPDATE: I used this on my F150 after learning that main ...
*by F***N on November 29, 2014*

Update: As I said earlier, the leak stopped. My clutch master cylinder began leaking and replacing that plastic part involves taking half the truck apart! My mechanic replaced the main seal. He said that the old seal had swelled about double in size and was bulged way out. I poured this bottle in and drove for 2000 miles. Perhaps a person should only drive 500 miles before replacing the oil to help avoid over swelling. ...........................It is good at making a seal swell. Perhaps a bit too good? I used this on my F150 after learning that main seal leaks are common on my 4.9 liter straight six. It has worked so far. No more stains on my driveway. I hope that it continues to work.

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-06-01*