How is this sleeve measured? Are the listed sizes diameters or are they the measurements of the sleeve when layed flat?

Actually, the perimeter of a 3/4" diameter pipe is 2-3/8".

Will the 1.5 inch sleeve fit over a 1.5 inch radiator hose, or will it be too snug?

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.

What is the inside diameter

The product is in a roll. The diameter is what ever you make it.

Can this be used on the egr valve tube

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.

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Design Engineering Heat Sheath Aluminized Sleeving – 3/4" I.D. x 3 ft

Design Engineering Heat Sheath Aluminized Sleeving – 3/4" I.D. x 3 ft

Product ID: 7124081

Details

Brand
Design
Item Thickness
1 inches
Material
Aluminum
Product Dimensions
10"L x 4"W
Recommended Uses For Product
auto racing

🔥Reflects radiant heat up to 2000°F

⚙️Easy slip-on installation, no tools needed

🛡️Heavy-duty abrasion & chemical resistance

HK$238

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Description

🔥 Shield your gear with the heat-proof armor pros trust!

BUILT TO LAST - Constructed with 19 oz high-temp fiberglass and durable aluminized outer layer for unmatched abrasion and flame resistance.
MADE IN THE USA - Crafted with precision and quality assurance, trusted by professionals who demand reliability.
ULTIMATE HEAT DEFENSE - Reflects intense radiant heat up to 2000°F while withstanding direct heat up to 500°F, keeping your components cool under pressure.
EFFORTLESS INSTALLATION - Slip-on design requires no special tools—cut to length, slide on, and secure for instant protection.
CHEMICAL DEBRIS SHIELD - Protects hoses and wiring from oil, fuel, chemicals, dirt, and road grime—perfect for demanding automotive and industrial environments.

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 resist direct heat up to 500°F. Made from 19 oz high-temperature fiberglass insulation bonded to a durable aluminum outer layer, it offers superior abrasion, chemical, and flame resistance. Designed for easy slip-on installation without tools, it safeguards hoses, wires, and cables in automotive and industrial settings, ensuring long-lasting performance and durability—all proudly made in the USA.

Specifications

ASIN	B000E267M4
Best Sellers Rank	#5,496 in Automotive ( See Top 100 in Automotive ) #7 in Automotive Replacement Exhaust Heat Wrap, Matting & Sleeving
Brand	Design Engineering
Brand Name	Design Engineering
Customer Reviews	4.7 out of 5 stars 1,215 Reviews
Global Trade Identification Number	00607078104038
Included Components	Design Engineering 010403 Heat Sheath 3/4" I.D. x 3ft Aluminized Sleeving for Ultimate Hi-Temp Protection
Item Dimensions L x W	10"L x 4"W
Item Highlight	High-Temperature Heat & Abrasion Protection for Hoses, Lines & Wires \| Reflects Up to 2000°F \| Made in USA
Item Thickness	1 inches
Item Type Name	Aluminized Sleeving for Ultimate Hi-Temp Protection
Item Weight	3.2 ounces
Manufacturer	Design Engineering, Inc.
Manufacturer Part Number	10403
Manufacturer Warranty Description	Warranty
Material	Aluminum
Material Type	Aluminum
Model Number	10403
Number of Items	1
Number of Packs	1
Part Interchange Info	010403
Product Dimensions	10"L x 4"W
Recommended Uses For Product	auto racing
UPC	607078104038
Unit Count	3 Feet

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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HK$238

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

2 days ago

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Excellent communication throughout the order process. Product is perfect.

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