A power steering hose serves as a crucial artery in vehicle hydraulic steering systems. Its primary function is to channel pressurized hydraulic fluid seamlessly between the power steering pump, steering gear/rack, and reservoir. These hoses, celebrated for their flexibility and robustness, endure constant high-pressure conditions (ranging from 150 to 1,500 PSI) and withstand the rigors of extreme temperature variations, from a chilling -40°F to a blistering +300°F.

Crafted with precision, most hoses boast an intricate construction comprising multiple layers, each serving a distinct purpose:
- An inner tube of synthetic rubber or thermoplastic, meticulously designed to resist degradation from hydraulic fluids
- Fortification layers, which may include braided steel wire, textile mesh, or spiral-wound fibers, ensure steadfast pressure containment
- An outer cover, resilient to weather, often made of EPDM or CR rubber, to guard against abrasion, harmful ozone, and environmental hazards