Flexible Fit. Serious Heat Protection.
Personalized Custom Solutions
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.

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.
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.
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.
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.
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.
Hot Rod Sleeve can expand up to 10 percent over its nominal inside diameter.
Personalized Custom Solutions
Simple installation – in minutes