Design Engineering, Inc. (010669): Vapor Lock™ Fuel Line Sleeve

The Vapor Lock™ fuel line sleeve from Design Engineering, Inc. prevents fuel and other fluids from boiling due to extreme heat and causing a vapor lock situation—along with the rough idling and difficult starting that accompany it. Made from glass fiber and polyester laminated to an aluminum outer layer, Vapor Lock™ fuel line sleeves (PN 010669) work by greatly reducing heat in the line to keep fuel cooler (340 degrees of direct heat resistance). Plus, thanks to its split design and adhesive flap, this DEI product installs easily without having to disconnect the fuel line.


  • Use on fuel lines to prevent vapor lock
  • Or use on any cable, hose, or line for added heat protection
  • 5/8” (16 mm) interior diameter x 36”; easily cuts to size
  • Split design with adhesive flap
Design Engineering Inc Vapor Block Fuel Line Sleeve 010669

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Though this is not a paid review, this content has been produced by The AAM Group™ in support of manufacturers with whom it has a business relationship.

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