Tygon Fuel Line F4040-A formulation for gasoline. This Tygon Fuel line is the good stuff that is highly resistant to abrasion, heat, and fuel hardening. Tygon Fuel Line F4040-A formulation for gasoline.

This fuel line stays softer longer than any other fuel line on the market. It is recommend to change your fuel line once a year. Brittle fuel line will increase the chances of an air leak, which is bad news for your engine.