Construction:
The series 337 fuel lines (Silverado 4000) is the best B1 fuel line in the market place. Utilising a complex construction technique involving a THV500 barrier layer, a Nitrile jacket, Polyester reinforcement and a CPE cover; we are able to offer a hose that outperforms all competitors. The Silverado 4000 hose has a small O.D., is extremely flexible and easy to clamp. Not only does the Silverado 4000 meet all requirements it has become the only fuel line worthy to be utilised in Sierra’s fuel line assemblies.

Silverado 4000 Outboard Fuel Line is resistant to ethanol blended fuels. This hose is EPA and CARB compliant. Silverado 4000 has a THV barrier layer to prevent permeation, polyester reinforcement for strength and a weather and UV resistant CPE cover. The gray colour keeps hose cooler and helps prevent vapor lock. This hose is for above deck applications, and is not fire retardant.