Sierra 16-368-0126 Shields Series 368 Low Permeation Marine Fuel Hose 1/2" x 50'

The Sierra Shields Series 368 Low Permeation Marine Fuel Hose (MPN: 16-368-0126) is a professional-grade, 50-foot fuel hose engineered for reliable fuel feed performance in marine applications. With a 1/2" inner diameter and a 13/16" outer diameter, this hose is built to handle the rigors of demanding marine fuel systems aboard outboards, inboards, and inboard/outboard (I/O) engines.

Constructed with a plastic barrier veneer and a Nitrile Butadiene Rubber (NBR) outer layer, the Series 368 hose minimizes fuel permeation while resisting weathering and UV exposure. The polyester-reinforced design allows the hose to make tight-radius bends without collapsing, making installation easier in tight engine compartment spaces.

Key Features:

• Inner Diameter: 1/2" (12.7mm) | Outer Diameter: 13/16" (20.83mm)
• Length: 50 feet — sold as a roll/carton
• Maximum Working Pressure: 100 PSI
• Temperature Range: -20°F to 212°F (-29°C to 100°C)
• Fuel Compatibility: Gasoline (up to E85 / 85% ethanol blends), diesel, and all bio-diesel blends
• Plastic barrier veneer with NBR outer layer for very low permeation
• Polyester reinforcement — maintains shape through tight-radius bends without collapsing
• Weather and UV resistant for long-term marine durability

Certifications & Compliance:

• Meets USCG Type A1-15 requirements for pleasure boats
• Compliant with SAE J1527 Type A1-15 standards
• Meets ISO 7840 Type A1 standards
• Complies with EPA and CARB very low permeation requirements
• NMMA/CE type accepted

The Sierra Shields 368 Series is the go-to choice for boaters and marine technicians who need a certified, low-permeation fuel line that meets all current regulatory standards. The 50-foot roll carton provides ample hose length for larger installations or shop/service use.