---
product_id: 7124081
title: "Heat Sheath™ Aluminized Sleeving – 3/4\" I.D. x 3 ft High-Temperature Heat & Abrasion Protection for Hoses, Lines & Wires | Reflects Up to 2000°F"
price: "R669"
currency: ZAR
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.za/products/7124081-heat-sheath-aluminized-sleeving-3-4-i-d-x-3
store_origin: ZA
region: South Africa
---

# Reflects radiant heat up to 2000°F Easy slip-on installation, no tools needed Heavy-duty abrasion & chemical resistance Heat Sheath™ Aluminized Sleeving – 3/4" I.D. x 3 ft High-Temperature Heat & Abrasion Protection for Hoses, Lines & Wires | Reflects Up to 2000°F

**Price:** R669
**Availability:** ✅ In Stock

## Summary

> 🔥 Shield your gear like a pro—because failure is not an option!

## Quick Answers

- **What is this?** Heat Sheath™ Aluminized Sleeving – 3/4" I.D. x 3 ft High-Temperature Heat & Abrasion Protection for Hoses, Lines & Wires | Reflects Up to 2000°F
- **How much does it cost?** R669 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/7124081-heat-sheath-aluminized-sleeving-3-4-i-d-x-3)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Heavy-duty 19 oz fiberglass insulation with aluminized outer layer resists abrasion, oil, chemicals, and road grime.
- • **Made in the USA:** Crafted with precision and pride, delivering trusted quality and peace of mind for professionals.
- • **Ultimate Heat Defense:** Reflects intense radiant heat up to 2000°F, keeping your critical lines cooler and safer.
- • **Effortless Installation:** Slip-on design lets you protect hoses and wires quickly without special tools—get back to work faster.
- • **Fire-Resistant Reliability:** Flame-retardant construction ensures long-term durability in the harshest automotive and industrial environments.

## Overview

Design Engineering Heat Sheath™ Aluminized Sleeving is a premium 3/4" I.D. x 3 ft protective sleeve engineered to reflect radiant heat up to 2000°F and withstand direct heat up to 500°F. Constructed from 19 oz high-temp fiberglass insulation bonded to a durable aluminized outer layer, it offers superior abrasion, chemical, and fire resistance. Designed for easy slip-on installation, it safeguards hoses, wires, and cables in demanding automotive and industrial settings. Proudly made in the USA for unmatched reliability and peace of mind.

## Description

Design Engineering Heat Sheath™ Aluminized Sleeving provides reliable protection for hoses, wires, cables, and fluid lines exposed to extreme heat and abrasion. Constructed from 19 oz high-temperature fiberglass insulation bonded to a durable aluminized outer layer, it reflects radiant heat up to 2000°F while withstanding direct heat up to 500°F. Reinforced with aramid fiber thread, Heat Sheath delivers excellent abrasion resistance, flame-retardant performance, and long-term durability, while also shielding components from oil, fuel, chemicals, dirt, grease, and road debris. Designed for easy slip-on installation, it helps keep lines cooler, flexible, and protected in demanding automotive and industrial environments. Proudly made in the USA. Do not apply directly to exhaust components.

Review: It's DEI Heat sheath - great stuff but expensive - Look, when you need this stuff, it's worth the price. It works, and does the job of protecting the wires or hoses it's supposed to. I think it's a bit expensive, but you buy this for reliable protection, and that's what you get. Sure, there are off brand stuff similar, but I paid for the peace of mind DEI provides. Used to protect 1/0 starter cable on my LS truck motor from header heat.
Review: Worked great - Had to run a starter wire on my Mustang an inch from the headers. Was uncomfortable with leaving it unprotected so I did this. Been running 2 months no problem

## Features

- EXTREME HEAT & ABRASION PROTECTION – Protects hoses, fuel lines, wiring, and cables from heat damage, friction, and wear that lead to premature failure.
- REFLECTS RADIANT HEAT UP TO 2000°F – Aluminized outer layer reflects intense radiant heat while withstanding direct heat up to 500°F, helping maintain cooler operating temperatures.
- PROTECTS AGAINST OIL, CHEMICALS & DEBRIS – Shields lines and hoses from oil, fuel, chemicals, dirt, grease, and road grime commonly found in automotive and industrial settings.
- EASY SLIP-ON INSTALLATION – Simply disconnect the line or hose, cut to length, slide on, and reinstall—no special tools required.
- HEAVY-DUTY, FIRE-RESISTANT CONSTRUCTION – Built with 19 oz high-temperature fiberglass insulation bonded to a durable aluminum outer layer for long-lasting thermal protection.
- Made in the USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Design Engineering |
| Brand | Design Engineering |
| Model | Design Engineering Heat Sheath |
| Item Weight | 3.2 ounces |
| Item model number | 10403 |
| Is Discontinued By Manufacturer | No |
| Exterior | Design Engineering Heat Sheath-Aluminized Sleeving 3/4"X36" - Sewn |
| Manufacturer Part Number | 10403 |
| OEM Part Number | 010403 |
| Position | Center |

## Images

![Heat Sheath™ Aluminized Sleeving – 3/4" I.D. x 3 ft High-Temperature Heat & Abrasion Protection for Hoses, Lines & Wires | Reflects Up to 2000°F - Image 1](https://m.media-amazon.com/images/I/717FqCWEkOL.jpg)
![Heat Sheath™ Aluminized Sleeving – 3/4" I.D. x 3 ft High-Temperature Heat & Abrasion Protection for Hoses, Lines & Wires | Reflects Up to 2000°F - Image 2](https://m.media-amazon.com/images/I/71jqaMHJ5hL.jpg)
![Heat Sheath™ Aluminized Sleeving – 3/4" I.D. x 3 ft High-Temperature Heat & Abrasion Protection for Hoses, Lines & Wires | Reflects Up to 2000°F - Image 3](https://m.media-amazon.com/images/I/71qTajlOTIL.jpg)
![Heat Sheath™ Aluminized Sleeving – 3/4" I.D. x 3 ft High-Temperature Heat & Abrasion Protection for Hoses, Lines & Wires | Reflects Up to 2000°F - Image 4](https://m.media-amazon.com/images/I/81menqT8NbL.jpg)
![Heat Sheath™ Aluminized Sleeving – 3/4" I.D. x 3 ft High-Temperature Heat & Abrasion Protection for Hoses, Lines & Wires | Reflects Up to 2000°F - Image 5](https://m.media-amazon.com/images/I/91SNugRjH1L.jpg)

## 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

### ⭐⭐⭐⭐⭐ It's DEI Heat sheath - great stuff but expensive
*by P***L on April 21, 2021*

Look, when you need this stuff, it's worth the price. It works, and does the job of protecting the wires or hoses it's supposed to. I think it's a bit expensive, but you buy this for reliable protection, and that's what you get. Sure, there are off brand stuff similar, but I paid for the peace of mind DEI provides. Used to protect 1/0 starter cable on my LS truck motor from header heat.

### ⭐⭐⭐⭐⭐ Worked great
*by T***S on December 25, 2024*

Had to run a starter wire on my Mustang an inch from the headers. Was uncomfortable with leaving it unprotected so I did this. Been running 2 months no problem

### ⭐⭐⭐⭐⭐ Manages heat well
*by J***N on July 17, 2025*

Excellent heat wrap. Just wear thick gloves the fibers get stuck in your hands

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**Shop now:** [https://www.desertcart.co.za/products/7124081-heat-sheath-aluminized-sleeving-3-4-i-d-x-3](https://www.desertcart.co.za/products/7124081-heat-sheath-aluminized-sleeving-3-4-i-d-x-3)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-07*