--- product_id: 71557465 title: "Pro-Seal Stop Leak Treatment – Stops Oil & Fluid Leaks in Engines, Transmissions, Power Steering, Differentials & Hydraulic Systems | 8 oz (Pack of 2) | Made in USA" brand: "hapco" price: "391.36 DT" currency: TND in_stock: true category: "Hapco" url: https://www.desertcart.tn/products/71557465-pro-seal-stop-leak-treatment-stops-oil-and-fluid-leaks store_origin: TN region: Tunisia --- # Stops leaks in 2-5 hours Restores rubber seal elasticity Compatible with all oils & fluids Pro-Seal Stop Leak Treatment – Stops Oil & Fluid Leaks in Engines, Transmissions, Power Steering, Differentials & Hydraulic Systems | 8 oz (Pack of 2) | Made in USA **Brand:** hapco **Price:** 391.36 DT **Availability:** ✅ In Stock ## Summary > 🛠️ Seal the deal before your engine feels the leak! ## Quick Answers - **What is this?** Pro-Seal Stop Leak Treatment – Stops Oil & Fluid Leaks in Engines, Transmissions, Power Steering, Differentials & Hydraulic Systems | 8 oz (Pack of 2) | Made in USA by hapco - **How much does it cost?** 391.36 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/71557465-pro-seal-stop-leak-treatment-stops-oil-and-fluid-leaks) ## Best For - hapco enthusiasts ## Why This Product - Trusted hapco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rapid Leak Repair:** Most leaks sealed within just 2-5 hours of normal operation—get back on the road faster. - • **Non-Clogging Formula:** 100% safe for internal fluid circulation—never restricts passages or filters, ensuring smooth system performance. - • **Seal Restoration Power:** Revives worn rubber seals by restoring flexibility and tensile strength to prevent future leaks. - • **Universal Fluid Compatibility:** Works seamlessly with conventional and synthetic oils across automotive, marine, agricultural, and heavy equipment. - • **Made in the USA with Quality Assurance:** Proudly manufactured domestically, trusted by thousands with a 4.1-star rating and counting. ## Overview Pro-Seal Stop Leak Treatment is a concentrated, non-clogging formula designed to quickly stop oil and fluid leaks by restoring the elasticity and strength of rubber seals in engines, transmissions, power steering, and hydraulic systems. Compatible with all oil types and safe for continuous use until the next fluid change, this USA-made solution offers fast, reliable leak repair and long-lasting seal conditioning. ## Description Hapco Pro-Seal concentrated formula is guaranteed to stop existing leaks in any fluid system: Engines, transmissions, differentials, power steering, rack and pinion, rear axles, gear cases, reduction gears, trim tabs, pillow blocks, transfer cases, heavy equipment and any hydraulic system (jacks / cylinders / pumps). This easy-to-use treatment quickly restores the flexibility, elasticity and tensile strength of all rubber seals to stop current leaks. It does not contain petroleum distillates, which can harm or destroy seals, and is 100% non-clogging. Pro-Seal can also be added at any time as a seal conditioner to help prevent future leaks. Compatible with all conventional and synthetic oils / fluids. Directions: With engine or equipment off, add one bottle of Pro-Seal to fluid reservoir where leak is occurring (or 1 OZ. per quart capacity). Do not use in brake system. Drive vehicle or operate machinery as normal to allow circulation of fluids. Most leaks are stopped within a total of 2-5 hours of fluid circulation. After the leak is repaired, Pro-Seal can safely remain in the system until mileage indicates need for oil / fluid change. ## Features - Stops Existing Oil & Fluid Leaks – Concentrated stop leak treatment designed to restore worn rubber seals and stop leaks in engines, transmissions, differentials, power steering, and hydraulic systems. - Restores & Conditions Rubber Seals – Quickly restores flexibility, elasticity, and tensile strength of rubber seals to stop current leaks and help prevent future leaks. - Non-Clogging Formula – 100% non-clogging and safe for internal fluid circulation; does not restrict passages or filters. - Compatible with All Oils & Fluids – Works with both conventional and synthetic oils and fluids across automotive, marine, agricultural, and heavy-equipment applications. - Easy to Use & Long-Lasting – Add directly to the fluid system where the leak is occurring. Most leaks stop within 2–5 total hours of normal operation. Pro-Seal can safely remain in the system until the next scheduled fluid change. - Made in USA ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07DVZCT5M | | Best Sellers Rank | #118,258 in Automotive ( See Top 100 in Automotive ) #119 in RV Sealants | | Brand Name | Hapco | | Compatible Material | Rubber | | Customer Reviews | 4.1 4.1 out of 5 stars (1,331) | | Item Dimensions | 10 x 4 x 4 inches | | Item Form | Liquid | | Item Weight | 1 ounces | | Manufacturer | Hapco Products Co. | | Material Type | Rubber | | Model | 8542054239 | | Number of Items | 1 | | Part Number | 208P2 | | Style Name | Compact | | Unit Count | 16 Fluid Ounces | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** Hapco - **Item Weight:** 1 ounces - **Item dimensions L x W x H:** 10 x 4 x 4 inches - **Material:** Rubber - **Style:** Compact ## Images ![Pro-Seal Stop Leak Treatment – Stops Oil & Fluid Leaks in Engines, Transmissions, Power Steering, Differentials & Hydraulic Systems | 8 oz (Pack of 2) | Made in USA - Image 1](https://m.media-amazon.com/images/I/81SCaZVtTiL.jpg) ## Available Options This product comes in different **Size** options. --- ## 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.tn/products/71557465-pro-seal-stop-leak-treatment-stops-oil-and-fluid-leaks](https://www.desertcart.tn/products/71557465-pro-seal-stop-leak-treatment-stops-oil-and-fluid-leaks) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-27*