---
product_id: 340538729
title: "Design Engineering 010403 Heat Sheath 3/4\" I.D. x 3ft Aluminized Sleeving for Ultimate Hi-Temp Protection"
brand: "design engineering"
price: "205 Lei"
currency: RON
in_stock: true
reviews_count: 7
category: "Design Engineering"
url: https://www.desertcart.ro/products/340538729-design-engineering-010403-heat-sheath-3-4-i-d-x
store_origin: RO
region: Romania
---

# Withstands 500°F direct heat Trim-to-fit flexibility Reflects radiant heat up to 2000°F Design Engineering 010403 Heat Sheath 3/4" I.D. x 3ft Aluminized Sleeving for Ultimate Hi-Temp Protection

**Brand:** design engineering
**Price:** 205 Lei
**Availability:** ✅ In Stock

## Summary

> 🔥 Shield your gear like a pro — because overheating is so last season!

## Quick Answers

- **What is this?** Design Engineering 010403 Heat Sheath 3/4" I.D. x 3ft Aluminized Sleeving for Ultimate Hi-Temp Protection by design engineering
- **How much does it cost?** 205 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/340538729-design-engineering-010403-heat-sheath-3-4-i-d-x)

## 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

- • **Flexible & Durable:** Pliable design allows tight bends without cracking or losing protection
- • **Ultimate Heat Defense:** Protects wires, cables & hoses from extreme temperatures up to 500°F direct and 2000°F radiant heat
- • **Universal Compatibility:** Available in five popular diameters to fit any project perfectly
- • **Custom Fit, No Compromise:** Easily trim to your exact length for a seamless, professional installation
- • **Built for Harsh Environments:** Resists chemicals, oil, dirt, and road grime to extend component life

## Overview

Design Engineering’s Heat Sheath is a premium aluminized sleeving engineered for extreme heat protection, withstanding direct heat up to 500°F and radiant heat up to 2000°F. Its flexible, trim-to-fit design fits wires, cables, and hoses across five diameters, offering universal compatibility. Resistant to chemicals, oil, and grime, it ensures durability and safety in automotive, industrial, and marine environments, extending the lifespan of critical components while maintaining peak performance.

## Description

Design Engineering’s Heat Sheath is a high-quality aluminized sleeving specifically engineered to slide easily over wires, cables, and hoses, providing exceptional protection against extreme heat and harsh environmental factors. Made from a tough, high-temperature resistant fabric that is bonded to a reflective aluminized material, this sleeving acts as a powerful barrier, effectively reflecting radiant heat away from critical components. Designed to withstand direct heat exposure up to 500 degrees Fahrenheit, the Heat Sheath also offers excellent resistance to chemical and oil spills, dirt, grease, and road grime, making it ideal for use in demanding automotive, industrial, and marine environments. Its fireproof construction ensures durability and safety even in the most extreme conditions, helping to extend the life of wiring and hoses by preventing heat-related damage and degradation. Easy to install and flexible, Design Engineering’s Heat Sheath delivers reliable, long-lasting protection to keep electrical and fluid systems functioning properly, reducing the risk of failure and costly repairs caused by heat and contamination. This trusted solution is perfect for anyone looking to enhance vehicle performance and longevity while maintaining safety under the hood or in other high-heat areas.

Review: منتج منتاز
Review: منتج جميل وممتاز وانصح فيه لعزل الاسلاك المعرضة للحرارة ⚠️ ملاحظة : عليك معرفة المقاسات الطول * العرض

## Features

- Slide over wires, cables and hoses for extreme heat protection
- Withstands 500 degrees F direct, continuous heat and 2000 degrees F radiant heat
- Pliable for tight bends
- Trim to desired length
- Five popular diameters to choose from: 1/2", 3/4", 1", 1-1/4", and 1-1/2".Fit Type: Universal Fit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000E267M4 |
| Best Sellers Rank | #5,553 in Automotive ( See Top 100 in Automotive ) #4 in Automotive Heat Wrap, Matting & Sleeving |
| Brand | Design Engineering |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,162) |
| Date First Available | 1 January 2024 |
| Exterior | Design Engineering Heat Sheath-Aluminized Sleeving 3/4"X36" - Sewn |
| Item Weight | 90.7 g |
| Item model number | 10403 |
| Manufacturer | Design Engineering |
| Manufacturer Part Number | 10403 |
| Model | Design Engineering Heat Sheath |
| OEM Part Number | 010403 |
| Position | Center |

## Images

![Design Engineering 010403 Heat Sheath 3/4" I.D. x 3ft Aluminized Sleeving for Ultimate Hi-Temp Protection - Image 1](https://m.media-amazon.com/images/I/71jqaMHJ5hL.jpg)
![Design Engineering 010403 Heat Sheath 3/4" I.D. x 3ft Aluminized Sleeving for Ultimate Hi-Temp Protection - Image 2](https://m.media-amazon.com/images/I/81menqT8NbL.jpg)
![Design Engineering 010403 Heat Sheath 3/4" I.D. x 3ft Aluminized Sleeving for Ultimate Hi-Temp Protection - Image 3](https://m.media-amazon.com/images/I/91SNugRjH1L.jpg)

## Available Options

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

## Questions & Answers

**Q: How is this sleeve measured? Are the listed sizes diameters or are they the measurements of the sleeve when layed flat?**
A: Actually, the perimeter of a 3/4" diameter pipe is 2-3/8".

**Q: Will the 1.5 inch sleeve fit over a 1.5 inch radiator hose, or will it be too snug?**
A: if the radiator hose is truly a 1.5" o.d and straight then yes it will fit, but if the hose expands as rubber does, then it will be greater than 1.5" and it may split the sleeve,  If it is a curved hose then it will be greater than 1.5" o.d. in portions and the sleeve will not fit.  You would not want to put this on a radiator hose as it would trap heat and not allow the radiator hose to radiate and dissipate heat properly.  If the hose is not carrying hot water but merely used as a drain hose, then this is fine.  This it meant to protect from radiant heat but also retains heat internally which could cause your rubber hose to fail prematurely and due to being obscured by the wrap you could not inspect the hose for sponginess, cracking or impending failure.  Basically, not a good idea for that purpose.

**Q: What is the inside diameter**
A: The product is in a roll.  The diameter is what ever you make it.

**Q: Can this be used on the egr valve tube**
A: Yes, the Design Engineering 010418 Heat Sheath can be used on the EGR valve tube. The inner diameter of the heat sheath is 0.5 inches, which is larger than the inner diameter of most EGR valve tubes (typically 0.4 inches). This means that the heat sheath will fit snugly over the EGR valve tube and provide protection from heat.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by ا***ي on 26 February 2024*

منتج منتاز

### ⭐⭐⭐⭐⭐ Review
*by S***I on 14 December 2022*

منتج جميل وممتاز وانصح فيه لعزل الاسلاك المعرضة للحرارة ⚠️ ملاحظة : عليك معرفة المقاسات الطول * العرض

### ⭐⭐⭐⭐⭐ Review
*by O***D on 17 April 2023*

Used to keep parts of a wiring harness and fuel lines protected in high temperature areas. Works as it should and easy enough to work with.

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-28*