Attwood Johnson/Evinrude Fuel Line Kit - 3/8" Diameter x 6' Length w/Fuel Demand Valve

The Attwood Johnson/Evinrude Fuel Line Kit with 3/8" diameter and 6' length is purpose-built for marine engine builders and boat mechanics who demand EPA-certified fuel delivery systems that won't fail under load. Whether you're restoring a classic outboard, upgrading fuel routing on a performance build, or replacing a deteriorated original line, this kit bridges the gap between OEM reliability and modern fuel system standards. The inclusion of a fuel demand valve ensures consistent pressure regulation across varying engine speeds and load conditions, a critical component for engines that experience the dynamic RPM swings inherent in marine operation.

The 3/8" diameter tubing accommodates the fuel flow requirements of mid-range Johnson and Evinrude outboards without restriction, while the 6' length provides flexibility in routing from tank to carburetor or fuel rail without unnecessary compression or kinks. The fuel demand valve regulates backpressure and prevents fuel siphoning when the engine is off, protecting against carburetor flooding and vapor lock—two issues that plague poorly specified fuel systems in warm climates. Attwood's EPA certification guarantees chemical resistance to modern ethanol-blended fuels and ensures compatibility with the materials and seals used throughout your fuel system, eliminating the risk of degradation that occurs with non-approved hose.

This kit is ideal for Johnson and Evinrude engine platforms spanning multiple generations, making it a universal choice for outboard technicians maintaining mixed fleets. Install this fuel line kit during any fuel system overhaul, tank replacement, or performance carburetor upgrade where fuel integrity and pressure stability directly impact idle quality, acceleration response, and long-term engine health. The compact 1 lb weight and straightforward hose-and-valve assembly make this a bolt-on upgrade that requires no special tools or fabrication, saving labor time while eliminating the risk of improper fuel routing.