---
product_id: 8963643
title: "BlueDevil Products 00234 Rear Main Sealer - 8 Ounce"
brand: "bluedevil products"
price: "฿1690"
currency: THB
in_stock: true
reviews_count: 13
category: "Blue Devil Products"
url: https://www.desertcart.co.th/products/8963643-bluedevil-products-00234-rear-main-sealer-8-ounce
store_origin: TH
region: Thailand
---

# Compatible with all engines Restores seals while driving Permanent seal tech BlueDevil Products 00234 Rear Main Sealer - 8 Ounce

**Brand:** bluedevil products
**Price:** ฿1690
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal the deal on leaks before your next drive!

## Quick Answers

- **What is this?** BlueDevil Products 00234 Rear Main Sealer - 8 Ounce by bluedevil products
- **How much does it cost?** ฿1690 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/8963643-bluedevil-products-00234-rear-main-sealer-8-ounce)

## Best For

- bluedevil products enthusiasts

## Why This Product

- Trusted bluedevil products brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Drive & Restore:** Revives dried, cracked seals as you drive—no downtime, no hassle.
- • **Seal-Safe Formula:** Free from petroleum distillates, protecting your engine seals from damage.
- • **Leak-Proof Confidence:** Permanently seals rear main leaks—no more messy oil spots or costly repairs.
- • **Effortless Application:** Just pour into your engine oil—no mechanic needed, no extra steps.
- • **Universal Engine Compatibility:** Works seamlessly with gasoline & diesel engines using synthetic or conventional oils.

## Overview

BlueDevil Rear Main Sealer is an 8-ounce liquid formula designed to permanently repair rear main seal leaks by flowing into damaged areas and restoring rubber seals while you drive. Compatible with all engine types and oils, it offers an easy, cost-effective alternative to expensive repairs, ensuring your engine oil stays where it belongs.

## Description

BlueDevil Rear Main Sealer is a product designed to fix leaks in the rear main seal of an engine. The rear main seal is a critical component of an engine, as it helps to keep the oil inside the engine and prevent it from leaking out. Over time, the seal can become worn or damaged, leading to leaks. Bluedevil Rear Main Sealer is formulated to be a non-particulate sealant that can mix with the engine oil and flow into the damaged areas of the rear main seal, creating a permanent seal. It is designed to work with all types of engine oil and can be used in both gasoline and diesel engines.

Review: seal leak - rear seal stopped leaking
Review: Works Very Well - I tried this on a 2016 Wrangler with a big oil leak from the rear main (lost 3qts in 5000miles) and it did stop the leakage much to my surprise (first based on significantly reduced diameter of oil spots on my driveway, then they completely disappeared by the next oil change), well enough for me to recommend it. I read some reviews on this product and at least one customer put this in his rear main differential with destructive results (increased leakage)--THIS IS INTENDED FOR REAR MAIN ENGINE SEAL, NOT REAR DIFFERENTIAL SEAL. I'm not sure if I drain the oil, will I have to do it again with the oil change? I will update this review to answer that later. Excellent product Update, changed oil and did not re-add this Blue Devil product, still no leaks, considering I had at least a 2foot diameter oil ring on my driveway at this time last year, this is a great product.

## Features

- Permanent seal: This product is formulated to flow into damaged areas of the rear main seal to provide a permanent seal to keep your vehicle’s oil inside of the rear of the engine. Works as a permanent repair and does not need to be added when oil is changed.
- Easy to use: BlueDevil Rear Main Sealer is designed to be easy to use, making it accessible to a wide range of drivers. Simply pour the recommended amount into the engine oil.
- Restores while you drive: Designed to restore dried, cracked, and shrunken rubber seals to their original condition while you drive.
- Safe to use: Does not contain petroleum distillates which can destroy seals.
- Compatible with all types of engines: Works on gasoline or diesel engines that use synthetic or conventional oils, making it a versatile product that can be used on a wide range of vehicles.
- · Do not use in brake systems or on painted surfaces!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0079JX4JO |
| Best Sellers Rank | #26,259 in Automotive ( See Top 100 in Automotive ) #49 in Body Repair & Restoration Adhesives |
| Brand Name | BlueDevil Products |
| Color | Blue |
| Compatible Material | Metal, Plastic |
| Customer Reviews | 4.1 4.1 out of 5 stars (3,530) |
| Global Trade Identification Number | 00891838002348 |
| Included Components | 1 x 8 Oz. Bottle |
| Item Dimensions | 6 x 2.5 x 2.5 inches |
| Item Form | Liquid |
| Item Type Name | Rear Main Sealer |
| Item Weight | 8 Ounces |
| Manufacturer | BlueDevil Products |
| Material Type | Rubber |
| Model | 00234 |
| Number of Items | 1 |
| Part Number | 00234 |
| Style Name | Compact |
| UPC | 891838002348 |
| Unit Count | 8.0 Ounce |
| Warranty Description | limited |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** BlueDevil Products
- **Item Weight:** 8 Ounces
- **Item dimensions L x W x H:** 6 x 2.5 x 2.5 inches
- **Material:** Rubber
- **Style:** Compact

## Images

![BlueDevil Products 00234 Rear Main Sealer - 8 Ounce - Image 1](https://m.media-amazon.com/images/I/717NLvzIfJL.jpg)

## Available Options

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

## Questions & Answers

**Q: Do you add it to your car, even if your oil is currently full?**
A: You add it in substitution to oil making sure you don't overfill, right to the upper fill line is perfect & a little over is still ok.

**Q: do i need to flush this after leak is fix?**
A: No don't flush. It will come out when you need an oil change.but it would have done its job on that leak..

**Q: who do i get a hold of for this guarentee?**
A: You have to directly contact the manufacturer, fill out a form, with proof of purchase, and send it back to them within 60 days

**Q: will this stop oil leak on a 2005 hyundia santa fe with 3.5l engine?**
A: I actually called the blue Devil company about a minivan with an oil leak. They said " absolutely".  It did slow down the leak.

## Customer Reviews

### ⭐⭐⭐⭐⭐ seal leak
*by T***R on April 7, 2026*

rear seal stopped leaking

### ⭐⭐⭐⭐⭐ Works Very Well
*by B***E on March 18, 2024*

I tried this on a 2016 Wrangler with a big oil leak from the rear main (lost 3qts in 5000miles) and it did stop the leakage much to my surprise (first based on significantly reduced diameter of oil spots on my driveway, then they completely disappeared by the next oil change), well enough for me to recommend it. I read some reviews on this product and at least one customer put this in his rear main differential with destructive results (increased leakage)--THIS IS INTENDED FOR REAR MAIN ENGINE SEAL, NOT REAR DIFFERENTIAL SEAL. I'm not sure if I drain the oil, will I have to do it again with the oil change? I will update this review to answer that later. Excellent product Update, changed oil and did not re-add this Blue Devil product, still no leaks, considering I had at least a 2foot diameter oil ring on my driveway at this time last year, this is a great product.

### ⭐⭐⭐⭐ Great product!
*by A***R on March 4, 2026*

Amazing! 2000's Ford Ranger 4.0 for my 87 yo father that developed a main seal leak and was really smelling bad. Poured it in and within a day or so the oil smell was almost gone. Very happy with results.

## Frequently Bought Together

- BlueDevil Products 00234 Rear Main Sealer - 8 Ounce
- BlueDevil Products 49499 Oil Stop Leak - 8 Ounce
- BlueDevil Products 00243 Stop Smoke & Engine Repair - 16 Ounce

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-26*