Description
Fuel vapor lock can kill engine performance and leave you stranded—especially during high-heat racing or street conditions where fuel system temperatures spike. The DEI Vapor Block Sleeve uses a multi-layer construction of glass fiber, polyester, and aluminum to insulate fuel lines and prevent boiling, keeping your fuel in liquid form and your engine running reliably. Split-design installation means no fuel system tear-down required; simply wrap it around your fuel line with the adhesive flap and you’re done.
- Dimensions: 1/2″ x 36″
- Material: Glass fiber/polyester laminate
- Outer layer: Aluminum
- Design: Split sleeve, adhesive flap
- Installation: Bolt-on, no fabrication
- Fitment: Universal (fuel lines, cables, hoses)
- Heat protection: Extreme temperature rated
- Customizable: Easily cut to length
- MPN: 10669
- Note: Do not apply to exhaust components






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