SAE 100R4 Oil Suction and Delivery Hose

SAE 100R4 is a specific hydraulic hose standard established by the Society of Automotive Engineers (SAE). This standard defines the requirements for a hydraulic hose designed for use in suction and return lines in hydraulic systems. SAE 100R4 hydraulic hoses are commonly used in applications where the hydraulic fluid needs to be drawn from one location and returned to another, such as in oil reservoirs or hydraulic reservoirs. Here’s a description of SAE 100R4 hydraulic hoses



  • Construction: SAE 100R4 hydraulic hoses are typically constructed with a two-layer structure, consisting of an inner tube and helical wire reinforcement with an outer cover.
  • Inner Tube: The inner tube of the hose is usually made of synthetic rubber or thermoplastic material, serving as a barrier to contain hydraulic fluid. It must be resistant to the type of fluid it will come into contact with.
  • Helical Wire Reinforcement: SAE 100R4 hoses feature a helical wire reinforcement, which provides both structural support and flexibility. This reinforcement allows the hose to maintain its shape and resist collapsing under vacuum conditions when used in suction applications.
  • Outer Cover: The outer cover of the hose is typically made of a synthetic rubber compound that is resistant to abrasion, weather, and environmental conditions. It protects the inner layers from external damage and helps prolong the hose’s lifespan.
  • Pressure Rating: SAE 100R4 hydraulic hoses are designed for low-pressure hydraulic systems and have a pressure rating that typically ranges from 250 to 300 psi (pounds per square inch).
  • Temperature Range: These hoses are designed to operate within a specific temperature range, typically from -40°C to 100°C (-40°F to 212°F), but the exact range may vary depending on the manufacturer and materials used.
  • Application: SAE 100R4 hoses are primarily used in suction and return lines in hydraulic systems where low-pressure hydraulic fluid transfer is required. They are commonly employed in applications where hydraulic fluid needs to be drawn from one location and returned to a reservoir.
  • Compatibility: SAE 100R4 hydraulic hoses are designed to work with a variety of hydraulic fluids, including mineral oils, water-based fluids, and some synthetic oils. Compatibility with the specific fluid being used is essential to ensure proper performance and longevity.

Additional information


1-1/2", 1-1/4", 1", 1/2", 1/4", 1/8", 2-1/2", 2-1/4", 2", 3, 3-1/2", 3", 3/16", 3/4", 3/8", 4-1/2", 4", 5/16", 5/8", 7/8"


Italy, Malaysia, USA, Canada, Germany, Australia, Austria, Japan, China


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