Believe it or not, but only a fraction of the parts that make up your car were manufactured by the automaker. It is much more common for a number of manufacturers who specialize in a certain automotive part of system to build components used by that automaker. These companies are known as OE Suppliers, and it is their job to manufacture parts for automakers to use in their factories when their vehicles are assembled. Reproduction parts are good, but original equipment parts are the best at bringing your vehicle back to perfect form and functionality. Some of the largest OE suppliers include companies like VDO/Seimens, Continental, and Victor Reinz.
Contained insde of your power steering system is two sides, the high side and the low side. From those two systems, the high side is the more common side to fail due to the high pressures it encounters on a day to day basis. Eventually the rubber hoses dry out and begin to harden and crack. When you are needing a replacement, check out OE Supplier power steering pressure lines.
OEM: 94434744702, Item: 446108
OEM: 32 41 6 758 959, Item: 498990
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OEM: 92834744500, Item: 446109
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OEM: 57510-3J000, Item: 1386742