Design Engineering Heat Sheath™ Aluminized Sleeving – 3/4-in I.D. x 3 ft, High-Temp Heat & Abrasion Protection
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Description
xWhen hoses, lines, and fluid conduits face extreme heat and wear in automotive and industrial environments, Design Engineering Heat Sheath offers a resilient shield. The sleeving combines 19 oz high-temperature fiberglass insulation with a durable aluminized outer layer to reflect radiant heat and stand up to direct heat up to 500°F.
The design blends inner insulation with a reflective exterior to minimize heat transfer while helping keep components cooler and more flexible over time. Reinforced with aramid fiber, it resists abrasion and supports long-term durability, while a flame-retardant profile adds another layer of protection in demanding settings. In addition, the sleeving helps guard against oils, fuels, chemicals, dirt, grease, and road grime that can degrade lines and hoses.
Installation is straightforward and tool-free: simply disconnect the line or hose, cut to length, slip on, and reconnect. While it’s designed for easy serviceability, it should not be applied directly to exhaust components. With a 3/4 inch inside diameter and a 3 ft length, Heat Sheath fits many automotive hoses and wiring runs, sensor cables, and fluid lines.
Why it matters in real-world use
In real-world settings, users often notice cooler-feeling lines and maintained flexibility in hot zones. The combination of radiant heat reflection, abrasion resistance, and chemical protection supports longer uptime in tough environments. Proudly made in the USA, Heat Sheath emphasizes durability and practical, field-ready performance.
What you get
- Superior heat and abrasion defense for hoses, fuel lines, wiring, and cables
- Reflects radiant heat up to 2000°F while tolerating direct heat up to 500°F
- Protects against oil, chemicals, dirt, grease, and road grime
- Slip-on installation—no special tools required
- Heavy-duty fiberglass insulation with aluminized outer layer for long-term protection
Manufactured in the USA, Heat Sheath is designed for automotive and industrial use with a strong emphasis on durability and practicality.
Important note
Do not apply Heat Sheath directly to exhaust components.
FAQ
Q: What does Design Engineering Heat Sheath protect against?
A: It shields hoses, fuel lines, and wiring from heat, abrasion, oil, chemicals, and debris in harsh environments.
Q: How do I install Heat Sheath?
A: Slip-on installation: disconnect the line, cut to length, slide on, and reconnect—no special tools required.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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