Sunsong 3402523 Power Steering Reservoir Hose

Sunsong 3402523 Power Steering Reservoir Hose

Sunsong 3402523 is a molded power steering reservoir return hose built for low-pressure, high-temperature steering return service. It is a direct-fit replacement for select BMW applications, including 1996-1999 BMW 328i, 1996-1999 BMW 328is, 1997-1999 BMW 323i, 1998-1999 BMW 323is, and 1997-1998 BMW Z3 models.

Key Features

• 5/8 in. ID hose connections at both ends
• 12.3 in. (312 mm) overall length
• CPE hose material for steering return service
• Rated for a maximum working pressure of 250 psi
• Precision-engineered molded reservoir hose fitment
• Built for low-pressure, high-temperature operation
• Cross-references Dorman HELP 80599 and Gates 352162 for the same application

Detailed Description

This power steering reservoir hose is engineered to restore the return-side fluid path between the reservoir and steering system on select BMW 3 Series and Z3 applications. Sunsong 3402523 uses CPE hose construction and 5/8 in. ID hose ends to match the specified reservoir hose configuration, while the molded design supports exact-fit replacement on vehicles such as the BMW 328i, 328is, 323i, 323is, and Z3. The hose is specified for return-hose duty, where low pressure and elevated fluid temperatures are common.

For buyers searching for a BMW 328i power steering reservoir hose, BMW 323i molded reservoir hose, or BMW Z3 steering return hose, this part number provides a direct replacement option with the listed dimensions and fitment. The Sunsong 3402523 part number is also useful when matching interchange references during steering system repair.

What It Helps Address

• Power steering fluid seepage at the reservoir return line
• Cracked or hardened hose material from heat exposure
• Restricted steering fluid return flow
• Noise or aeration caused by a deteriorated return hose
• Incorrect hose length or end size during replacement

Installation Notes and Tips

Verify the hose end size, molded routing, and overall length before installation. This hose uses 5/8 in. ID hose connections at both ends and is intended for return-side steering service, not high-pressure pump output. Confirm vehicle application by year and model before ordering, especially on BMW 323i, 328i, 328is, 323is, and Z3 platforms. Inspect adjacent steering components for wear, contamination, or heat damage before completing the repair.

Quality Assurance

Sunsong states that this return hose exceeds original equipment performance standards for its intended low-pressure application and is manufactured for corrosion and rust resistance in demanding underhood and road environments. The part is precision engineered for exact fit and original-condition restoration of the related wearable components.