American Made Since 1985

Hot Rod Sleeve®

Flexible Fit. Serious Heat Protection.

This is how you can fix vapor lock, protect oil lines, and prevent wires from melting, install the Hot Rod Sleeve. This lightweight flexible sleeve expands in diameter up to 10% to go over fittings and terminals.

  • Expands to fit over fittings and bends.
  • Prevents vapor lock by keeping fuel lines cooler and insulated.
  • Shields wires and fluid lines like brake, oil, and transmission hoses.
  • Non-flammable for safe, high-temp heat protection.
  • Reflects up to 60% of radiant heat to reduce under-hood temps.
  • HP Builder’s Kits available for smaller projects or custom-length installations.
  • Proudly made in the USA with premium materials and proven performance.
Continuous
1100°F
593 °C
Continuous
Intermittent
2000°F
1093 °C
Intermittent

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Hot Rod Sleeve®

Product Types
SKU
Description
#
204011
3/8 id x 10 ft Roll
204012
1/2 id x 10 ft Roll
204013
1/4 id x 10 ft Roll
204014
3/4 id x 10 ft Roll
204015
5/8 id x 10 ft roll
204018
1 id x 10 ft Roll
204020
1-1/4 id x 10 ft Roll
204022
1-1/2 id x 10 ft Roll
204101
3/8 id x 100 ft Roll
204102
1/2 id x 100 ft Roll
204104
3/4 id x 100 ft Roll
204108
1 id x 100 ft Roll
204001
1/4 id x 2 ft Roll - HP Builder's Kit
204002
1/2 id x 2 ft Roll - HP Builder's Kit
204003
5/16 id x 2 ft Roll - HP Builder's Kit
204004
3/8 id x 2 ft Roll - HP Builder's Kit
204008
5/8 id x 2 ft Roll - HP Builder's Kit
204009
5/8 id x 6 ft Roll - HP Builder's Kit
204010
3/4 id x 2 ft Roll - HP Builder's Kit
204016
1 id x 2 ft Roll - HP Builder's Kit
Product Types
SKU
Description
204011
3/8 id x 10 ft Roll
204012
1/2 id x 10 ft Roll
204013
1/4 id x 10 ft Roll
204014
3/4 id x 10 ft Roll
204015
5/8 id x 10 ft roll
204018
1 id x 10 ft Roll
204020
1-1/4 id x 10 ft Roll
204022
1-1/2 id x 10 ft Roll
204101
3/8 id x 100 ft Roll
204102
1/2 id x 100 ft Roll
204104
3/4 id x 100 ft Roll
204108
1 id x 100 ft Roll
204001
1/4 id x 2 ft Roll - HP Builder's Kit
204002
1/2 id x 2 ft Roll - HP Builder's Kit
204003
5/16 id x 2 ft Roll - HP Builder's Kit
204004
3/8 id x 2 ft Roll - HP Builder's Kit
204008
5/8 id x 2 ft Roll - HP Builder's Kit
204009
5/8 id x 6 ft Roll - HP Builder's Kit
204010
3/4 id x 2 ft Roll - HP Builder's Kit
204016
1 id x 2 ft Roll - HP Builder's Kit

Flexible, Strong, and Versatile

The unique weave of this expandable heat shield sleeve allows it to expand and contract over fittings and terminals. The diameter can expand up to 10% of the nominal inside diameter. This flexibility makes installation easier, especially in tight engine bays where removing lines or components is not practical. Hot Rod Sleeve is a proven solution for vapor lock and heat-related performance issues. This high-performance sleeve is also ideal for clutch cables and lines. In addition, this sleeve works great for wire looms, transmission lines, and other heat-sensitive components that require reliable thermal protection.

Designed for both professional builders and DIY enthusiasts, Hot Rod Sleeve offers a simple and effective way to control heat without complex installation. Its expandable design, high-temperature resistance, and durable construction make it a go-to solution for managing heat in demanding automotive environments.

1967 F100 Patina Truck

No More Vapor Lock No More Trouble

Fix vapor lock and protect critical components with this sleeve. It helps shield wire harnesses and clutch cables from extreme radiant heat. Hot Rod Sleeve is thermal sleeving capable of withstanding 1100°F continuous temperatures and 2000°F intermittent heat exposure. This non-flammable sleeve features a special weave that expands over fittings and terminals without fraying or losing structure. It also delivers a classic hot rod appearance while incorporating modern Heatshield technology for improved durability and performance.

This sleeve is commonly used in performance builds, restorations, and off-road applications where heat management is critical. It helps reduce heat soak, improve reliability, and extend the life of components exposed to exhaust heat. Whether you are routing fuel lines near headers or protecting wiring near turbo components, this expandable heat shield sleeve provides consistent and dependable protection. For step-by-step installation, watch our Hot Rod Sleeve install video on YouTube.

FAQ

What is the best way to fix and stop vapor lock?

We like the Hot Rod Sleeve to fix and prevent vapor lock issues. Its ability to expand on the inside diameter means it can be used on metal fuel lines as well as a heat shield for metal lines.


My wiring harness melted, how can I fix it?

Using a heat shield sleeve like our Hot Rod Sleeve will stop melting of wire and engine harnesses and it will also act as fire protection in case of a critical failure in the engine compartment. This heat shield sleeve is far superior to the split wire looms you see. You can even slide the Hot Rod Sleeve over these looms to protect them.


How do I get the sleeve to expand over fittings and terminals?

Shorten or “bunch” the sleeve length wise, and stretch the opening of the sleeve then slide over. It may also help to coat fitting or terminal with silicone or dry graphite spray before sliding over. To decrease the id of sleeve after it slides over fitting/terminal pull on both ends of the sleeve to stretch the length.


How much does the Hot Rod Sleeve expand?

Hot Rod Sleeve can expand up to 10 percent over its nominal inside diameter.

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