--- product_id: 5241828 title: "NO LEAK 20401 Engine Oil Stop Leak, 16 Fl oz." brand: "gold eagle" price: "฿159" currency: THB in_stock: true reviews_count: 8 url: https://www.desertcart.co.th/products/5241828-no-leak-20401-engine-oil-stop-leak-16-fl-oz store_origin: TH region: Thailand --- # stops smoke & leaks rear main seal specialist 473ml precision formula NO LEAK 20401 Engine Oil Stop Leak, 16 Fl oz. **Brand:** gold eagle **Price:** ฿159 **Availability:** ✅ In 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 gold eagle - **How much does it cost?** ฿159 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/5241828-no-leak-20401-engine-oil-stop-leak-16-fl-oz) ## Best For - gold eagle enthusiasts ## Why This Product - Trusted gold eagle 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. ## 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 | |---------------|-------| | Brand | Gold Eagle | | Package Information | Bottle | | Liquid Volume | 473 Milliliters | | Item Weight | 13.05 ounces | | Recommended Uses For Product | rear main seal repair | | Item Form | Liquid | | Global Trade Identification Number | 00073905204019 | | Manufacturer | Gold Eagle Co. | | Unit Count | 1.0 Count | | UPC | 073905020046 073905204019 | | Number of Items | 1 | | Item Weight | 13.1 ounces | | Product Dimensions | 8.44 x 5.56 x 8.88 inches | | Item model number | 20401 | | Is Discontinued By Manufacturer | No | | Manufacturer Part Number | 20401 | ## 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 ### ⭐⭐⭐⭐⭐ Seems to be working so far *by N***O on June 10, 2014* Used this to stop some head gasket/valve cover leaks until i either repair or sell my car with 160K miles on. I would have to add a quart every 1000mi or so, and at stop lights you could smell oil burning. I added this with the last oil change, and after 200 miles, it seems to have stopped the leak. No burning oil smell anymore and oil level is still tip top. I don't expect it to last forever, but so far it works as advertised. Recommended if you've got an older car you don't want to sink $2-3K into to stop an oil leak. ### ⭐⭐⭐⭐ Engine sealer *by J***R on October 27, 2023* Not sure if it works, I have 352K mileage on my 5.7L Toyota Tundra that has oil seepage ### ⭐⭐⭐ 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. --- ## 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.co.th/products/5241828-no-leak-20401-engine-oil-stop-leak-16-fl-oz](https://www.desertcart.co.th/products/5241828-no-leak-20401-engine-oil-stop-leak-16-fl-oz) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-24*