---
product_id: 278062424
title: "Bar's Leaks 1040-6PK Rear Main Seal Repair Concentrate - 16.9oz (Pack of 6)"
brand: "bar's leaks"
price: "28672 kr"
currency: ISK
in_stock: false
reviews_count: 5
url: https://www.desertcart.is/products/278062424-bars-leaks-1040-6pk-rear-main-seal-repair-concentrate-16
store_origin: IS
region: Iceland
---

# Seals multiple engine leaks Compatible with all vehicle types 16.9 fl oz per bottle Bar's Leaks 1040-6PK Rear Main Seal Repair Concentrate - 16.9oz (Pack of 6)

**Brand:** bar's leaks
**Price:** 28672 kr
**Availability:** ❌ Out of Stock

## Summary

> 🚗 Seal the deal, stop the drip—drive leak-free with confidence!

## Quick Answers

- **What is this?** Bar's Leaks 1040-6PK Rear Main Seal Repair Concentrate - 16.9oz (Pack of 6) by bar's leaks
- **How much does it cost?** 28672 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/278062424-bars-leaks-1040-6pk-rear-main-seal-repair-concentrate-16)

## 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

- • **Bulk Pack Advantage:** Six 16.9 oz bottles ensure you’re always ready to tackle leaks and avoid unexpected breakdowns.
- • **Multi-Leak Solution:** Not just rear main seals—also seals timing caps, cam seals, o-rings, and gaskets.
- • **Long-Lasting Formula:** Contains advanced additives that rejuvenate hardened seals and worn crankshafts.
- • **Precision Leak Repair:** Restores rear main seals to near-new condition, reducing costly oil drips.
- • **Universal Compatibility:** Works seamlessly with gasoline, diesel, turbocharged, synthetic, and high mileage oils.

## Overview

Bar's Leaks Rear Main Seal Repair Concentrate is a powerful, 16.9 oz liquid formula designed to restore and rejuvenate worn rear main seals and other engine gaskets. Compatible with all petroleum-based oils and vehicle types, it effectively reduces leaks caused by seal hardening and crankshaft wear. Sold in a convenient 6-pack, it offers a reliable, multi-leak sealing solution trusted by thousands to extend engine life and prevent costly oil loss.

## Description

Most rear main seal leaks are caused by a combination of normal wear on the crankshaft and sealing and drying, hardening and shrinking of the main seal. Bar Leaks rear main seal repair restores the seal to a new condition and also contains additives to stop leaks in heavily worn seals and crankshafts. Compatible with all petroleum-based engine oils, including high mileage and synthetic. Works with all vehicle types including gasoline, diesel and turbocharged. Specifically designed to seal rear main leaks, but also performs better than a conventional stop leak on all other leaks. This includes the timing cap seal, cam seals, o-rings, and other gaskets.

Review: سعر جيد - لم يوقف كل التسريبات ولكن له تاثير على تقايل نسبة الفقد من الزيت
Review: Good product, seems to do the job pretty well - Seems to work good, not perfect but definitely slowed down the leak quite a bit. I was getting a lot of drips from the rear main before, but now it's almost stopped, but not completely. I get a few drops here and there is all. Nothing major. So I'd say this project does it's job pretty good.

## Features

- manufacturer: Bar's Products
- Item Trademark: BAR'S PRODUCTS
- Item Weight: pounds, pounds, 1.00, 1.00
- Item Category: Auto Accessory

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BYS6OD4 |
| Best Sellers Rank | #89,489 in Automotive ( See Top 100 in Automotive ) #321 in Oil & Fluid Additives |
| Brand | Bar's Leaks |
| Brand Name | Bar's Leaks |
| Container Type | Bottle |
| Customer Reviews | 4.0 out of 5 stars 167 Reviews |
| Global Trade Identification Number | 10046087010409 |
| Included Components | Bar's Leaks Rear Main Seal Repair (Pack of 6) |
| Item Form | Liquid |
| Item Type Name | Bar's Leaks Rear Main Seal Repair (Pack of 6) |
| Item form | Liquid |
| Item height | 2 inches |
| Liquid Volume | 16.9 Fluid Ounces |
| Liquid volume | 16.9 Fluid Ounces |
| Manufacturer | Bar's Leaks |
| Package information | Bottle |
| Unit Count | 101.4 Milliliters |

## Product Details

- **Brand:** Bar's Leaks
- **Package information:** Bottle
- **Liquid volume:** 16.9 Fluid Ounces
- **Item form:** Liquid
- **Global Trade Identification Number:** 10046087010409

## Images

![Bar's Leaks 1040-6PK Rear Main Seal Repair Concentrate - 16.9oz (Pack of 6) - Image 1](https://m.media-amazon.com/images/I/41qMu0Fm3PL.jpg)
![Bar's Leaks 1040-6PK Rear Main Seal Repair Concentrate - 16.9oz (Pack of 6) - Image 2](https://m.media-amazon.com/images/I/61acE8kdOXL.jpg)
![Bar's Leaks 1040-6PK Rear Main Seal Repair Concentrate - 16.9oz (Pack of 6) - Image 3](https://m.media-amazon.com/images/I/715ymgSJtpL.jpg)
![Bar's Leaks 1040-6PK Rear Main Seal Repair Concentrate - 16.9oz (Pack of 6) - Image 4](https://m.media-amazon.com/images/I/71A-Sclo-vL.jpg)
![Bar's Leaks 1040-6PK Rear Main Seal Repair Concentrate - 16.9oz (Pack of 6) - Image 5](https://m.media-amazon.com/images/I/81-fo-LI2gL.jpg)

## Questions & Answers

**Q: Is this safe for diesels, specifically the Duramax 6.6L?**
A: Yes..... According to Bars Product, this is compatible with all engines and engine oils.

**Q: Can you use this with synthetic oils**
A: Yes, I have used it with synthetic oil with no issues.

**Q: What it does with my other gasket that has not have a leak?**
A: If I'm understanding your question correctly.... you would like to know what effect this has on gaskets that are not leaking?    The answer is nothing.....  Thank you  Eric

**Q: Is this safe to use with other gas additives such as seafoam, lucas?**
A: Yes there is no problem. This gets poured into your oil crankcase not into your gasoline. Seafoam usually gets poured into your gas tank to clean injectors and cylinder walls sometimes you can put it in the crankcase just about 4 oz to clean junk this does not stop any leaks usually done 100 or 200 mi before an oil change. Lucas has many products some that are injector cleaners that go into the fuel tank some that are oil stabilizers or stop leaks or friction additives that go into your oil crankcase you can have Lucas oil additive/stop leak and bars leak in your oil crankcase they don't interfere with one another

## Customer Reviews

### ⭐⭐⭐ سعر جيد
*by F***I on 2 March 2025*

لم يوقف كل التسريبات ولكن له تاثير على تقايل نسبة الفقد من الزيت

### ⭐⭐⭐⭐ Good product, seems to do the job pretty well
*by L***R on 22 November 2025*

Seems to work good, not perfect but definitely slowed down the leak quite a bit. I was getting a lot of drips from the rear main before, but now it's almost stopped, but not completely. I get a few drops here and there is all. Nothing major. So I'd say this project does it's job pretty good.

### ⭐⭐⭐⭐⭐ This product is the best.
*by R***S on 29 October 2025*

This product is well known for softening and reconditioning rear main seals and to make them do what they’re supposed to do. This is a must have product on our farm.

## Frequently Bought Together

- Bar's Leaks Rear Main Seal Repair (Pack of 6)
- Bar's Leaks High Mileage Engine Repair-It, Pack of 4
- Bar's Leaks OS-1-4PK Seal Engine Oil Burning/Leak Repair - 16.9 oz, (Pack of 4)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-22*