Sierra 16-368-0566 5/16" x 50 ft Marine Hose Roll

The Sierra Shields Series 368 Low Permeation Marine Fuel Hose is a professional-grade fuel feed hose engineered for reliable performance in demanding marine environments. This 50-foot bulk carton features a 5/16" inside diameter and 5/8" outside diameter, making it a versatile choice for outboard, inboard, and I/O boat fuel systems.

Constructed with a plastic barrier veneer and NBR outer layer tube, this hose is designed to effectively limit fuel permeation — a critical requirement for both environmental compliance and onboard safety. Polyester reinforcement adds strength and durability, while the weather- and UV-resistant outer layer ensures long-lasting performance in harsh marine conditions.

Key Features:

• 5/16" ID / 5/8" OD — 50-foot bulk roll carton
• Compatible with gasoline, ethanol-blended fuels (up to E85), diesel, and all bio-diesel blends
• Plastic barrier veneer with NBR outer layer to prevent permeation
• Polyester reinforced construction for added strength
• Weather and UV resistant outer layer for marine durability
• Operating temperature range: -20°F to 212°F
• Maximum working pressure: 100 PSI
• Color: Black

Certifications & Standards:

• USCG Type A1-15 — meets requirements for pleasure boats
• SAE J1527 Type A1-15
• ISO 7840 Type A1
• EPA and CARB very low permeation compliant
• NMMA/CE type accepted

Sold as a 50-foot roll-off carton, this fuel hose is ideal for boatyards, marine service centers, and do-it-yourself boaters needing bulk fuel line for repowering or refitting projects.