--- product_id: 260384372 title: "K-Seal ST3501 Pour and Go Head Gasket Sealer, 16oz, Permanent Repair for Blown Head Gaskets, Cracked Heads and Blocks" brand: "k-seal" price: "246.63 DT" currency: TND in_stock: true reviews_count: 13 url: https://www.desertcart.tn/products/260384372-k-seal-st3501-pour-and-go-head-gasket-sealer-16oz store_origin: TN region: Tunisia --- # Seals leaks up to 0.64mm Compatible with all coolants 33% more sealing power K-Seal ST3501 Pour and Go Head Gasket Sealer, 16oz, Permanent Repair for Blown Head Gaskets, Cracked Heads and Blocks **Brand:** k-seal **Price:** 246.63 DT **Availability:** ✅ In Stock ## Summary > 🛠️ Fix it once, drive forever – the ultimate seal for your engine’s heart ## Quick Answers - **What is this?** K-Seal ST3501 Pour and Go Head Gasket Sealer, 16oz, Permanent Repair for Blown Head Gaskets, Cracked Heads and Blocks by k-seal - **How much does it cost?** 246.63 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/260384372-k-seal-st3501-pour-and-go-head-gasket-sealer-16oz) ## Best For - k-seal enthusiasts ## Why This Product - Trusted k-seal brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Permanent Power Seal:** 33% stronger formula for a lasting fix on blown head gaskets and cracks - • **One-Step Leak Stopper:** Ceramic micro-fibres seal holes up to 0.64mm without engine downtime - • **Effortless Application:** No draining or flushing—just shake, pour, and drive - • **Universal Compatibility:** Works seamlessly with all coolant types and engine materials - • **Mechanic-Trusted Reliability:** Proven, cost-effective repair backed by millions of users and ASTM certification ## Overview K-Seal ST3501 is a professional-grade, permanent head gasket sealer with 33% more sealing power than standard formulas. It effortlessly seals leaks up to 0.64mm in size using ceramic micro-fibres, compatible with all coolant types and engine materials. Trusted by mechanics and millions worldwide, it requires no system draining—just shake, pour, and go for a cost-effective, long-lasting engine repair. ## Description Coolant leaks don’t have to result in costly repair bills – simply add K-Seal to your coolant system for a quick and permanent fix. K-Seal is scientifically trusted by millions of customers worldwide, and the only coolant leak repair fluid carried by the AA, the UK’s largest roadside repair company. K-Seal couldn’t be simpler to use. K-Seal’s unique formula will seek out holes and cracks, and permanently seal them, with no adverse impact on the efficiency of your engine cooling. K-Seal ULTIMATE K3501 Head Gasket Repair is the simple, permanent fix for blown head gaskets, cracked heads and blocks, and porous engine blocks. Our unique formula works with all water-cooled engines – there’s no need to drain or flush your cooling system, and it doesn’t matter what kind of antifreeze or coolant you’ve used previously. Simply shake the bottle, pour K-Seal ULTIMATE into your cooling system, and you’re back on the road. K-Seal can deal with all of these leaks and more, as long as they are identified as early as possible. It is easy to use – simply shake it and pour it into the coolant mixture and it will work automatically. ## Features - PERMANENT REPAIR: Our advanced formula with 33% more sealing power than regular K-Seal, ensures a long-lasting, permanent seal for challenging leaks. Permanently fixes blown head gaskets, cracked heads & porous engine blocks in cars - STOP HOLES & CRACKS: With just 1 step our unique formula with ceramic micro-fibres, will permanently seal leaks up to 0.64mm in size, without any adverse impact on the engine - EASY TO USE: It requires no draining or flushing; just shake, pour & go - shake the bottle, add the fluid wherever you top up your coolant & run your engine as normal. For larger engines (HGV's / Plant) use 2 bottles - VERSATILE COMPATIBILITY: Works with all types of coolant & compatible with a wide range of vehicle engine materials & heavy duty machinery. A permanent fix for the lifetime of the engine - PROFESSIONAL-GRADE RELIABILITY: Trusted by mechanics, our sealer treatment delivers a durable & long-lasting repair. A cost-effective head gasket & block repair, enhancing the performance of your vehicle’s cooling system. We've sold millions worldwide & are independently verified by university testing to meet ASTM D3147. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B00QYZIVA6 | | Best Sellers Rank | #24,513 in Automotive (See Top 100 in Automotive) #161 in Oil & Fluid Additives | | Brand | K-Seal | | Customer Reviews | 4.0 4.0 out of 5 stars (2,069) 4.0 out of 5 stars | | Date First Available | 4 February 2015 | | Item Model Number | KSLST3501 | | Item Weight | 454 g | | Manufacturer | Solv-Tec | | Manufacturer Part Number | KSLST3501 | | Model | ST3501 | | Product Dimensions | 6.35 x 6.35 x 20.32 cm; 453.59 g | ## Images ![K-Seal ST3501 Pour and Go Head Gasket Sealer, 16oz, Permanent Repair for Blown Head Gaskets, Cracked Heads and Blocks - Image 1](https://m.media-amazon.com/images/I/71G2FkNC+6L.jpg) ## Questions & Answers **Q: How to use the product** A: ÜRÜN RADYATÖR İÇİNE DÖKÜLÜR. **Q: Is it for diesel cars also?** A: Yes, it works for both petrol & diesel engines. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Instated of changing Radioter for big money you can try one time with this. *by on Reviewed in the United Arab Emirates 8 March 2024* LR2 2012, There was a Small crack on the radiator and my coolant was leaking, This is fixed.One month now I didn't see a single drop of coolant. excellant. ### ⭐⭐⭐⭐⭐ Best of all best *by on Reviewed in the United Arab Emirates 21 September 2023* Thanks ### ⭐⭐⭐⭐⭐ Great product *by on Reviewed in the United Arab Emirates 28 May 2023* Worked perfectly ## Frequently Bought Together - K-Seal ST3501 Pour and Go Head Gasket Sealer, 16oz, Permanent Repair for Blown Head Gaskets, Cracked Heads and Blocks - K-Seal ST5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required - K-Seal ST5516 Heavy-Duty Multi-Purpose One Step Permanent Coolant Leak Repair, 16 oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required --- ## 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/260384372-k-seal-st3501-pour-and-go-head-gasket-sealer-16oz](https://www.desertcart.tn/products/260384372-k-seal-st3501-pour-and-go-head-gasket-sealer-16oz) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-23*