--- product_id: 282048038 title: "BlueDevil Products Rear Main Sealer - 8 Ounce (00234)" brand: "bluedevil products" price: "$46.24" currency: USD in_stock: true reviews_count: 6 category: "Blue Devil Products" url: https://www.desertcart.us/products/282048038-bluedevil-products-rear-main-sealer-8-ounce-00234 store_origin: US region: United States of America --- # Universal engine compatibility Restores seals while driving 8 oz precision dosing BlueDevil Products Rear Main Sealer - 8 Ounce (00234) **Brand:** bluedevil products **Price:** $46.24 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal the deal on leaks before they seal your fate! ## Quick Answers - **What is this?** BlueDevil Products Rear Main Sealer - 8 Ounce (00234) by bluedevil products - **How much does it cost?** $46.24 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/282048038-bluedevil-products-rear-main-sealer-8-ounce-00234) ## 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:** Restores dried and cracked seals seamlessly as you drive - • **Easy Application:** Simply pour into engine oil—no mechanic needed, no hassle - • **Trusted by Thousands:** 4.1-star rating from over 3,300 users who stopped leaks for good - • **Leak-Proof Confidence:** Permanently seals rear main leaks without engine disassembly - • **Engine-Friendly Formula:** Safe for gasoline & diesel engines with synthetic or conventional oils ## Overview BlueDevil Rear Main Sealer is an 8-ounce liquid additive designed to permanently fix rear main seal leaks by restoring rubber seals while driving. Compatible with all engine types and oils, it offers a safe, easy-to-use solution trusted by thousands to stop oil leaks without costly repairs. ## 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: As advertised - I used this 2 times now the leak never came back. The first time I used it I was really sceptical about this product still leaking for two days but as I drive along the leak suddenly disappeared. So when I did my oil change I pour another bottle no more leak up to now. I think it does its job kudos to the seller and kudos to bluedevil. Review: worked as described ## Features - 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! - Product Type :Auto Accessory - Package Dimensions :2.0" L X2.0" W X5.85" H - Country Of Origin :United States - Package Weight :1.0Lbs - BlueDevil Rear Main Sealer - 8 Ounce (00234) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0079JX4JO | | Brand Name | BlueDevil Products | | Color | black | | Compatible Material | Ceramic | | Customer Reviews | 4.1 4.1 out of 5 stars (3,346) | | Global Trade Identification Number | 00891838002348 | | Included Components | 1 x 8 Oz. Bottle | | Item Dimensions | 15.2 x 6.4 x 6.4 centimeters | | Item Form | Liquid | | 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 Grams | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** BlueDevil Products - **Item dimensions L x W x H:** 15.2 x 6.4 x 6.4 centimeters - **Item weight:** 8 Ounces - **Material:** Rubber - **Style:** Compact ## Images ![BlueDevil Products Rear Main Sealer - 8 Ounce (00234) - Image 1](https://m.media-amazon.com/images/I/717NLvzIfJL.jpg) ![BlueDevil Products Rear Main Sealer - 8 Ounce (00234) - Image 2](https://m.media-amazon.com/images/I/710nGL1XQgL.jpg) ![BlueDevil Products Rear Main Sealer - 8 Ounce (00234) - Image 3](https://m.media-amazon.com/images/I/81wsv-dKapL.jpg) ![BlueDevil Products Rear Main Sealer - 8 Ounce (00234) - Image 4](https://m.media-amazon.com/images/I/71eDb059AsL.jpg) ## 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 ### ⭐⭐⭐⭐⭐ As advertised *by D***E on 14 August 2022* I used this 2 times now the leak never came back. The first time I used it I was really sceptical about this product still leaking for two days but as I drive along the leak suddenly disappeared. So when I did my oil change I pour another bottle no more leak up to now. I think it does its job kudos to the seller and kudos to bluedevil. ### ⭐⭐⭐⭐⭐ Review *by L***W on 28 June 2025* worked as described ### ⭐⭐⭐⭐⭐ Review *by T***R on 7 April 2026* rear seal stopped leaking ## 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 --- ## 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.us/products/282048038-bluedevil-products-rear-main-sealer-8-ounce-00234](https://www.desertcart.us/products/282048038-bluedevil-products-rear-main-sealer-8-ounce-00234) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-04-26*