DEI Vapor Block Sleeve - 1/2" x 24" 906647

Fuel vapor lock can cost you race wins and reliability. When extreme underhood heat causes fuel to vaporize in your lines, your engine stumbles, stalls, or fails to start—especially on hot days or high-performance applications. The DEI Vapor Block Sleeve solves this problem with proven thermal protection that wraps around fuel lines, keeping temperatures in the safe zone so your fuel stays liquid and your engine runs consistently.

This split-design sleeve installs in seconds without cutting or removing fuel lines. The adhesive flap wraps around your fuel system, and the laminated glass fiber-polyester core bonded to an aluminum outer layer reflects heat away from critical fuel delivery components. It's also versatile enough to protect any high-heat hose, cable, or line in your engine bay—just keep it away from direct exhaust contact.

• Diameter: 1/2"
• Length: 24"
• Design: Split with adhesive flap
• Material: Glass fiber/polyester + aluminum laminate
• Installation: Bolt-on, no tools required
• Cuttable to custom lengths
• Universal fitment
• Prevents fuel vapor lock
• Protects hoses and cables
• MPN: 906647