Continental 5/16" Fuel Hose 25 ft — SAE J30R7, 50 psi, nitrile tube with CPE cover

Continental 65127 is a 25-foot, 5/16" inner diameter multipurpose fuel hose rated for 50 psi working pressure and built for fuel, PCV and emission-control use.

This Continental Elite SAE J30R7 hose combines a nitrile fuel-resistant tube with a two-spiral synthetic reinforcement and a chlorinated polyethylene (CPE) cover to deliver a durable, heat-resistant line for fuel-system and emission-control plumbing. Designed and manufactured in the U.S.A., the hose is compatible with unleaded gasoline, diesel, E-10, E85 and sour gas, and is engineered to hold up under common automotive and small-engine conditions. It is not intended for fuel-injection high-pressure systems.

What applications is this hose suited for?

The 65127 is intended for low- to moderate-pressure fuel routing and emission plumbing tasks—things like fuel return lines, PCV connections and vapor or emission-control tubing. It’s a versatile replacement hose for many older and aftermarket systems where SAE J30R7 construction is specified.

• Fuel return lines and gravity-fed fuel lines
• PCV, crankcase ventilation and emission-control lines
• Diesel and gasoline fuel lines for non-pressurized or low-pressure systems
• Aftermarket repairs or custom fuel-routing on classic cars, small engines, and equipment

How does the hose handle fuel types and temperatures?

Material choices—nitrile tube and CPE cover—make the hose compatible with a broad range of fuels including ethanol blends and sour gas while resisting swelling and deterioration. Its published temperature range supports typical engine-bay extremes without rapid breakdown.

• Compatible with unleaded gasoline, diesel, E-10 and E85
• Temperature range: -40°F to 257°F (-40°C to 125°C)
• Resists chemical attack from common fuel blends and additives
• Maintains flow and shape across typical operating temperatures

What are the pressure and size specifications I should know?

The hose is sized for a 5/16" inner diameter and an outer diameter of approximately .56 inches, making it easy to fit many standard barbed fittings and clamps. It carries a 50 psi working pressure rating with a 250 psi burst pressure safety margin—adequate for return/vent lines but not for fuel-injection feed lines.

• Inner Diameter (ID): 5/16" (0.3125")
• Outer Diameter (OD): 0.56"
• Working Pressure: 50 psi
• Burst Pressure: 250 psi

How durable and serviceable is this Continental hose?

Continental engineered this hose for lifespan and reliability: the two-spiral synthetic reinforcement resists collapse and elongation, and the CPE cover provides abrasion and heat resistance for use in engine compartments. The 25-foot coil gives installers flexibility to cut custom lengths and make quick repairs or runs without repeatedly joining short pieces.

• Two-spiral reinforcement reduces kinking and improves pull strength
• CPE cover offers abrasion and heat resistance in engine bays
• 25-foot length for multiple repairs or long custom runs
• Precision manufactured and quality-tested in the U.S.A.

Who this is for: technicians, restoration hobbyists, and DIY mechanics who need a dependable, fuel-compatible hose for non-pressurized fuel circuits, PCV and emission plumbing. Avoid using this hose on high-pressure fuel-injection feed lines; for those applications, choose OEM-recommended high-pressure tubing instead. If you need a long, U.S.-made SAE J30R7-rated hose that tolerates ethanol blends and engine-bay heat while maintaining flow, the Continental 65127 is a practical choice.