--- product_id: 368211327 title: "Design Engineering Vapor Block Sleeve 3/8\" X 36\"" brand: "design engineering" price: "$93.76" currency: USD in_stock: true category: "Design Engineering" url: https://www.desertcart.ec/products/368211327-design-engineering-vapor-block-sleeve-3-8-x-36 store_origin: EC region: Ecuador --- # Resists heat up to 340°F Tool-free, split design with adhesive flap Durable glass fiber & aluminum laminate Design Engineering Vapor Block Sleeve 3/8" X 36" **Brand:** design engineering **Price:** $93.76 **Availability:** ✅ In Stock ## Summary > 🔥 Vapor Block Sleeve: Keep your fuel cool and your ride unstoppable! ## Quick Answers - **What is this?** Design Engineering Vapor Block Sleeve 3/8" X 36" by design engineering - **How much does it cost?** $93.76 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/368211327-design-engineering-vapor-block-sleeve-3-8-x-36) ## Best For - design engineering enthusiasts ## Why This Product - Trusted design engineering brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last Under Fire:** Constructed from glass fiber and polyester laminated with reflective aluminum for superior heat resistance - • **Universal Fit for Every Ride:** 36-inch length and 3/8-inch diameter fits most fuel lines, cables, and hoses - • **Keep Your Fuel Cool, Your Engine Cooler:** Prevents vapor lock by reducing heat transfer to fuel lines - • **Install in Seconds, No Disconnect Needed:** Split design with adhesive flap for effortless, tool-free application - • **Protect Your Engine, Avoid Costly Repairs:** Blocks radiant heat to ensure smooth starts and consistent performance ## Overview The Vapor Block Sleeve by Design Engineering is a 36-inch universal-fit fuel line sleeve engineered to prevent vapor lock by reducing heat transfer. Made from durable glass fiber and polyester laminated with reflective aluminum, it resists direct heat up to 340°F. Its innovative split design with an adhesive flap allows quick, tool-free installation without disconnecting fuel lines, making it ideal for automotive, marine, and industrial applications where heat management is critical for reliable engine performance. ## Description Design Engineering Vapor Block is specifically engineered to prevent vapor lock caused by extreme heat in fuel and fluid lines, a common problem that leads to rough idling and difficult engine starting. By significantly reducing heat transfer to the fuel line, Vapor Block keeps fuel cooler and below its boiling point, ensuring consistent engine performance. This fuel line sleeve features a convenient split design with an adhesive flap, allowing for quick, tool-free installation without the need to disconnect or remove the fuel line. Simply wrap Vapor Block around the fuel line, peel off the adhesive liner, and press the flap securely in place. Constructed from durable glass fiber and polyester, laminated with a reflective aluminum outer layer, Vapor Block provides excellent, long-lasting thermal protection. It effectively shields fuel lines from radiant heat, helping to avoid costly repairs or modifications due to vapor lock. This lightweight, reusable sleeve is ideal for automotive, marine, and industrial applications where managing heat is critical to reliable engine operation. ## Features - Specifically developed to prevent vapor lock in fuel systems by greatly reducing heat in the line to keep fuel cooler and below boiling - Installs easily with a split design and adhesive flap no need to disconnect the fuel line - Made of glass fiber and polyester laminated to an aluminum outer layer - Can be used on any cable, hose or line for added heat protection - Direct heat resistance to 340 F.Fit type: Universal Fit ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07QPZTBXV | | ASIN | B07QPZTBXV | | Brand Name | Design Engineering | | Color | Silver | | Country of Publication | USA | | Country of origin | USA | | Customer Reviews | 4.1 4.1 out of 5 stars (346) | | Customer reviews | 4.1 4.1 out of 5 stars (346) | | Date First Available | 19 June 2019 | | Department | unisex-adult | | Fit Type | Universal Fit | | Global Trade Identification Number | 00607078106711 | | Included Components | 36" x 3/8" ID Vapor Block Fuel Line Sleeve | | Is Discontinued By Manufacturer | No | | Item Length | 36 Inches | | Item Type Name | Fuel Line Sleeve | | Item model number | 10671 | | Manufacturer | Design Engineering, Inc. | | Manufacturer | Design Engineering, Inc. | | Manufacturer Part Number | 10671 | | Material Type | glass, polyester | | Model Number | 10671 | | Product Dimensions | 6.35 x 8.89 x 25.4 cm; 9 g | | UPC | 607078106711 | | Unit Count | 1 Count | ## Product Details - **Brand:** Design Engineering - **Colour:** Silver - **Material:** Glass, Polyester - **Nominal wall thickness:** 0.0625 inches - **Product dimensions:** 91.4L x 1W centimeters ## Images ![Design Engineering Vapor Block Sleeve 3/8" X 36" - Image 1](https://m.media-amazon.com/images/I/611pKpHjHbL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - Design Engineering Vapor Block Sleeve 3/8" X 36" - EVIL ENERGY an Hose Fitting Adjustable Wrench Spanner Lightweight Aluminum 3AN-16AN Black --- ## 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.ec/products/368211327-design-engineering-vapor-block-sleeve-3-8-x-36](https://www.desertcart.ec/products/368211327-design-engineering-vapor-block-sleeve-3-8-x-36) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-07-05*