YSIL Fuel Line Hose 1" (25mm) ID 6.6ft — NBR Rubber, 300 PSI Oil & Heat Resistant

YSIL 1" (25mm) ID fuel line hose is a 6.6-foot NBR rubber push-lock line engineered for automotive fluid routing with high temperature, oil resistance, and up to 300 PSI working capability.

This durable fuel hose combines a nitrile-butadiene (NBR) rubber compound with fiber cord reinforcement to deliver flexible routing for fuel, oil-cooling, PCV, transmission and other under-hood systems. Sized with a 1" (25 mm) inner diameter and 1.35" (34.4 mm) outer diameter, the 6.6-foot length is convenient for cross-platform installs, and the hose can be trimmed to fit custom runs. Performance ratings include a continuous working environment to 217 PSI, a maximum working rating of 300 PSI, and a burst pressure measured up to 1200 PSI, with operational temperatures from -40°F to 257°F (-40°C to 125°C).

How does this hose handle heat, oil, and harsh under-hood conditions?

The NBR rubber formulation is selected for resistance to petroleum-based fluids, oils, and heat typical of engine bays. The braided fiber reinforcement adds structural stability under pressure and reduces expansion when the line is pressurized, maintaining consistent flow.

• Temperature range: -40°F to 257°F (-40°C to 125°C)
• Material: NBR rubber resists oil and fuel degradation
• Fiber braid reinforcement for pressure stability

What pressure and safety margins should I expect when using it?

This hose is rated for routine work up to 217 PSI and has a specified maximum working pressure of 300 PSI, providing a safety margin for many automotive applications. The burst pressure rating of approximately 1200 PSI indicates a high threshold before catastrophic failure, though actual performance depends on installation and fittings used.

• Normal working pressure: 217 PSI
• Maximum recommended working pressure: 300 PSI
• Burst pressure: ~1200 PSI (for safety context)

Will the hose fit my installation and is it easy to route?

The 1" (25 mm) inner diameter accommodates a broad range of fuel and oil flow requirements, and the 6.6-foot length gives flexibility for longer runs or multiple cuts. The hose is notably pliable, with a minimum bend radius of 4.7 inches (120 mm), making it simpler to navigate tight engine compartments without kinking.

• Inner diameter: 1" (25 mm); outer diameter: 1.35" (34.4 mm)
• Length: 6.6 feet, field-cuttable to size
• Minimum bend radius: 4.7 inches (120 mm) for tight routing

Which systems and vehicles is this hose suitable for?

Designed as a multi-purpose automotive line, this hose is compatible with fuel delivery, oil cooling circuits, PCV, steam or vapor routing, as well as transmission, clutch and some brake applications where NBR rubber is acceptable. It’s appropriate for passenger cars, light trucks, buses and many industrial machines that use petroleum-based fluids.

• Common uses: fuel systems, oil cooling, PCV, transmission and clutch lines
• Vehicle types: cars, trucks, buses, and compatible industrial equipment
• Cut-to-length flexibility for custom setups and repairs

Who is this for? Installers, mechanics and DIY enthusiasts looking for a resilient, oil-resistant 1" ID fuel line with a long usable length will find this YSIL hose suitable for retrofit, repair and custom routing projects. It’s aimed at users who need a balance of flexibility, pressure capability and chemical compatibility for under-hood fluid management, but should be paired with appropriate clamps and fittings rated for the system pressure and fluid type.

Note: Choose correct fittings and clamps, inspect compatibility with specific fuels or additives, and follow all safety guidelines for pressurized fuel and fluid lines. The product provides engineering ratings as described but installation factors influence overall system safety.