---
product_id: 296284720
title: "1040-6PK Rear Main Seal Repair Concentrate - 16.9 oz, (Pack of 6)"
brand: "bar's leaks"
price: "1550 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/296284720-1040-6pk-rear-main-seal-repair-concentrate-16-9-oz
store_origin: RO
region: Romania
---

# Restores seals to like-new condition Compatible with all petroleum-based oils Stops all oil leaks across vehicle types 1040-6PK Rear Main Seal Repair Concentrate - 16.9 oz, (Pack of 6)

**Brand:** bar's leaks
**Price:** 1550 Lei
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 1040-6PK Rear Main Seal Repair Concentrate - 16.9 oz, (Pack of 6) by bar's leaks
- **How much does it cost?** 1550 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/296284720-1040-6pk-rear-main-seal-repair-concentrate-16-9-oz)

## 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

- • **Seal Restoration Power:** Revives worn rear main seals and crankshafts, extending engine life and performance.
- • **Synthetic Oil Friendly:** Safe and effective with high-mileage and synthetic oils, ensuring broad engine compatibility.
- • **Universal Leak Stopper:** Works seamlessly with gasoline, diesel, and turbocharged engines to halt leaks fast.
- • **Multi-Seal Compatibility:** Effectively seals timing covers, cam seals, O-rings, and gaskets beyond just rear main leaks.
- • **Precision Dosage Formula:** One bottle treats up to 6 quarts of oil, perfect for both small engines and full-sized vehicles.

## Overview

Bar's Leaks Rear Main Seal Repair Concentrate is a synthetic formula designed to stop oil leaks in all vehicle types, including gasoline, diesel, and turbocharged engines. It restores worn seals to like-new condition, effectively sealing rear main leaks as well as timing covers, cam seals, and other gaskets. Compatible with all petroleum-based oils, including synthetic and high-mileage, this 16.9 oz bottle treats 4 to 6 quarts of oil, making it a versatile and essential maintenance product for prolonging engine life and preventing costly repairs.

## Description

Bar's Leaks 1040-6PK Rear Main Seal Repair Concentrate - 16.9 oz, (Pack of 6)

## Features

- STOPS ALL OIL LEAKS: Works with ALL vehicle types including gasoline, diesel and turbocharged.
- SEALS TIMING COVER, CAM SEAL, REAL MAIN LEAKS: Specifically designed to seal rear main leaks, but also works better than a conventional stop leak on all other leaks. This includes the timing cover seal, cam seals, O-Rings and other gaskets.
- SEAL RESTORER: Bar’s Leaks Rear Main Seal Repair restores the seal to like new condition and also contains additives to stop leaks in severely worn seals and crankshafts.
- SEAL POLYMER: Compatible with all petroleum based engines oils including high-mileage and synthetic.
- DOSAGE: One bottle treats 4 to 6 quarts of oil. Larger systems use 1 bottle for every 5 quarts of oil capacity. For small engines including 4 cycle / stroke motorcycle, ATV, lawn mowers and other engines use approximately 3 to 4 ounces per quart of capacity.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Synthetic |
| Brand | Bar's Leaks |
| Package Information | Bottle |
| Liquid Volume | 16.9 Fluid Ounces |
| Recommended Uses For Product | Automotive |
| Specific Uses For Product | Prevent Corrosion |
| Item Form | Liquid |
| Global Trade Identification Number | 10046087010409 |
| Manufacturer | Bar's Leaks |
| Net Quantity | 101.4 Milliliters |
| Number of Items | 6 |
| Model | 1040-6PK |
| Product Dimensions | 19.3 x 8.64 x 5.08 cm; 3.16 kg |
| Item model number | 1040-6PK |
| Manufacturer Part Number | 1040-6PK |
| Outer Material | other |
| Assembly Required | No |
| Voltage | 12 Volts |
| Country of Origin | USA |
| Item Weight | 3 kg 160 g |

## Product Details

- **Material:** Synthetic
- **Brand:** Bar's Leaks
- **Package Information:** Bottle
- **Liquid Volume:** 16.9 Fluid Ounces
- **Recommended Uses For Product:** Automotive

## Images

![1040-6PK Rear Main Seal Repair Concentrate - 16.9 oz, (Pack of 6) - Image 1](https://m.media-amazon.com/images/I/715ymgSJtpL.jpg)
![1040-6PK Rear Main Seal Repair Concentrate - 16.9 oz, (Pack of 6) - Image 2](https://m.media-amazon.com/images/I/61acE8kdOXL.jpg)
![1040-6PK Rear Main Seal Repair Concentrate - 16.9 oz, (Pack of 6) - Image 3](https://m.media-amazon.com/images/I/816-v04DEXL.jpg)
![1040-6PK Rear Main Seal Repair Concentrate - 16.9 oz, (Pack of 6) - Image 4](https://m.media-amazon.com/images/I/71A-Sclo-vL.jpg)
![1040-6PK Rear Main Seal Repair Concentrate - 16.9 oz, (Pack of 6) - Image 5](https://m.media-amazon.com/images/I/41qMu0Fm3PL.jpg)

## Available Options

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

## 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

## 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 Romania*
*Store origin: RO*
*Last updated: 2026-03-03*