---
product_id: 620353784
title: "Bar's Leaks Rear Main Seal Repair, 16.9 oz (Pack of 2)"
brand: "bar's leaks"
price: "€ 69.01"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.sk/products/620353784-bars-leaks-rear-main-seal-repair-16-9-oz-pack
store_origin: SK
region: Slovakia
---

# Stops oil leaks fast Works within 100 miles Easy DIY application Bar's Leaks Rear Main Seal Repair, 16.9 oz (Pack of 2)

**Brand:** bar's leaks
**Price:** € 69.01
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal on leaks before they seal your wallet!

## Quick Answers

- **What is this?** Bar's Leaks Rear Main Seal Repair, 16.9 oz (Pack of 2) by bar's leaks
- **How much does it cost?** € 69.01 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/620353784-bars-leaks-rear-main-seal-repair-16-9-oz-pack)

## Best For

- bar's leaks enthusiasts

## Why This Product

- Trusted bar's leaks brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Results:** Most leaks stop within 2 days or 100 miles of driving
- • **Trusted Legacy:** Proven since 1947 to restore seals and prevent future leaks
- • **DIY Friendly Formula:** Simply add to engine oil—no mechanic needed, saving time and money
- • **Leak-Proof Confidence:** Seals rear main, timing cover, and cam seals better than conventional stop leaks
- • **Universal Compatibility:** Works with gasoline, diesel, conventional, high mileage, and synthetic oils

## Overview

Bar's Leaks Rear Main Seal Repair (2-pack, 16.9 oz each) is a powerful, easy-to-use liquid additive designed to stop oil leaks caused by worn or dried seals. Compatible with all engine types and oils, it restores seals to like-new condition and halts leaks within 100 miles or 2 days, offering a cost-effective alternative to expensive repairs.

## Description

Have you noticed oil leaking from your car lately? Many car owners fear the puddle they see forming under their vehicles, and many worry about the time and cost to make it go away. That leak might be due to worn or dried seals. There’s no need to worry or spend your money on a costly repair bill, however. Our Bar’s Leaks Concentrated Rear Main Seal Repair quickly and safely restores those seals so you can get back on the road. Bar’s Leaks is the leader that specializes in chemical solutions for rear main seal leaks and other automotive issues. Our products are effective and affordable. And they’re easy to use, too. If you know how to pop the hood on your car, you can install our rear oil seal solution. We design our products for ease of use, because a good solution isn’t very helpful to everyday drivers if they can’t use it. At Bar’s Leaks, we do everything we can to get you back on the road in good condition just as quickly as possible, by offering rear main seal leak products and much more. Most rear main seal leaks are caused by a combination of normal wear in the crankshaft and seal combined with the drying, hardening and shrinking of the main seal. Bar’s Leaks Concentrated Rear Main Seal Repair restores the seal to like-new condition, and also contains additives to stop leaks in severely worn seals and crankshafts. Not to mention, it works with ALL gasoline and diesel engines using conventional, high mileage and synthetic oil. We’ve gone to great lengths to ensure that our rear oil seal solution is working for you in all possible ways. You can count on us for a rear main seal leak that takes care of your problems and helps prevent future leaking. You can trust that our products are the fastest, safest way to get your show back on the road — we’ve been proving that since 1947.

## Features

- The information below is per-pack only
- Seals timing cover, cam seal, rear main and other hard to stop oil leaks
- Add to engine oil
- Specifically designed to seal rear main leaks, but also works better than a conventional stop leak on all other leaks
- Add entire bottle of Rear Main Seal Repair to engine crankcase (where you add oil) at or between oil changes. Do not overfill. Most leaks will stop within 100 miles or 2 days of driving

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Bar's Leaks |
| Package Information | Flasche |
| Liquid Volume | 33.8 Fluid Ounces |
| Item Weight | 2.2 Pounds |
| Item Form | Liquid |
| Manufacturer | Bar's Leaks |
| Unit Count | 33.8 Ounce |
| Number of Items | 2 |
| Item Weight | 2.2 pounds |
| Product Dimensions | 1.9 x 3.4 x 7.7 inches |
| Item model number | 1040 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 1040 |

## Product Details

- **Brand:** Bar's Leaks
- **Package Information:** Flasche
- **Liquid Volume:** 33.8 Fluid Ounces
- **Item Weight:** 2.2 Pounds
- **Item Form:** Liquid

## Images

![Bar's Leaks Rear Main Seal Repair, 16.9 oz (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/71JEkyjqpJL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ So far so good
*by I***D on April 20, 2024*

I own a 20 year old SUV that I simply love to drive. It runs great, looks great and it's been paid off for many years now. It just clocked 200k miles and the rear main seal started leaking. While I don't mind putting money into it, I tried this product first.Well, I am pleasantly surprised. Many reviews here stated the vehicle needs to be driven a few hundred miles before results are apparent. I drove my SUV 12 miles after adding the stop leak and I'll be damned if the leak hasn't stopped.I will keep an eye on the condition but for now, the stuff works. Will follow up if the leak returns.I've run up about 400 miles and no leaks so far. 300 to 400 miles and the leak has sealed up the problem. That seems about the average working milage. Good product, just be patient....

### ⭐⭐⭐⭐⭐ Read this if you are considering buying this product for an oil leak!
*by T***E on April 27, 2014*

I'll start by saying this product goes against everything I believe or have been taught about internal combustion engines, the two most prevailing thoughts before ordering this were:#1: Only oil goes in the crankcase, nothing else#2: Snake oil does not work, especially for a long term solution, fix the real problem instead of throwing money and additives at the problem that ultimately may do more harm than goodI have a small block ford engine that has a notorious rear main seal leak, drips engine oil right at the transmission bell housing. Started small and got worse. This is a well documented problem, and the transmission must be pulled to replace the seal. I have heard many stories of people who have replaced the seal, only to have the brand new one leak too, people have tried crankshaft sleeves to make the fit tighter, and with mixed results. I did not want to go down this road unless I had no other option.I did a little research on this product, and the reviews are mixed. I have not heard any horror stories worse than "it didn't help and I wasted my money on this product", and from what I understand it works completely differently than the "leak stop" additives you would use for a head gasket, coolant leak, air conditioning system leak, or tire leak. All the latter leak stop additives are adhesive products which are glues and materials designed to fill cracks/voids and cure on contact with air. This product works differently. This product is not an adhesive of any kind and does not leave any residue. It is basically a solvent that attacks rubber and causes it to swell. This makes the seals fit a little tighter if the only problem is a seal is a little old or dried out. If the seal is cracked, deformed, or a synthetic material that the active ingredient in this product doesn't react with (its designed for rubber, not corks, silicones, etc), this product will most likely not help.I dumped this in the oil reservoir. It was already a little low from the leak, so the excess oil in the crankcase was not an issue. Ran the engine for about 30 mins and no change, still same dripping while running. I drove the vehicle every day approx 30 miles. After a week, the leak was barely noticable, just the bottom of the transmission housing felt a little oily, but no puddle/stains in the driveway. After 2-3 weeks, the leak was gone. And I mean gone, not a drop. I was impressed how well this worked on this problem and thought it fixed it permanently. Then about 4000mi later, I did an oil change. For the first few hundred miles after that, no leaks, then after about 1k miles, I noticed the leak started to return. I immediately picked up another bottle of this stuff and dumped it in, about 1 week later, the leak was gone. I now don't even mess around anymore and just add a bottle of this stuff to every oil change, and it is under control, its a small price to pay (even for life of vehicle) to not have to deal with the rear main seal. For me, this product makes a night and day difference, I have been using it for approx 30k miles, but depending on the root cause of your leak, your mileage may vary.

### ⭐⭐⭐⭐ Good quality
*by L***Y on March 5, 2025*

Have used this before, works well, follow instructions on bottle. Took a while to get it .But price is great.

## Frequently Bought Together

- Bar's Leaks Rear Main Seal Repair, 16.9 oz (Pack of 2)
- Bar's Leaks OS-1 Oil Seal Engine Oil Burning and Leak Repair, 16.9 oz.

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-04*