Sunsong 3403720 Power Steering Reservoir Hose

Brand Sunsong 3403720
End 1 Fitting Size (mm) 16
End 1 Fitting Type Id hose
End 2 Fitting Size (mm) 16
End 2 Fitting Type Id hose
Hose Material 1 Cpe
Length (in) 26.6
Length (mm) 662
Tech Tip Tt1000
Fits Subaru · 2 vehicles

Exact-fit hose. Precision engineered to restore original condition.

Zinc-coated tubing. Helps resist corrosion and rust in harsh conditions.

High-pressure rated. Built for low-pressure, high-temperature operation.

Cross-references ACI 81641, Sunsong 3403720 and 34611SC020 for the same application. See all 3.

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Power Steering Reservoir Hose for Subaru Forester

Sunsong 3403720 is a power steering reservoir hose built for low-pressure, high-temperature return-line service. It is engineered for a precise OE-style fit on the 2011-2012 Subaru Forester and uses CPE hose material with 16 mm ID hose fittings at both ends.

For Subaru Forester owners replacing a worn return hose, this part number 3403720 provides a direct replacement path with the dimensions and construction needed for a clean, factory-style repair.

Key Features

  • Fits 2011-2012 Subaru Forester, N/A
  • Power steering reservoir return hose
  • 16 mm ID hose fittings on End 1 and End 2
  • 26.6 in. overall length; 662 mm overall length
  • CPE hose construction for steering return service
  • Rated for a maximum working pressure of 250 psi
  • Built for low-pressure, high-temperature operation

Detailed Description

Sunsong 3403720 is a replacement power steering reservoir hose designed for the return side of the steering system. The hose is 26.6 inches long and uses 16 mm ID hose connections at both ends, making it a fit-focused solution for the 2011-2012 Subaru Forester. The CPE hose material is selected for steering fluid return service, while the hose design supports low-pressure operation up to 250 psi.

This part cross-references ACI 81641 for the same application. If you are searching for a 2011 Subaru Forester power steering reservoir hose or a 2012 Subaru Forester return hose, Sunsong 3403720 is the direct replacement part number to reference.

Common Problems This Hose Can Address

  • Cracked or hardened power steering return hose
  • Fluid seepage at the reservoir hose connection
  • Loss of steering fluid from a deteriorated hose line
  • Noise caused by low fluid level in the steering system
  • Service replacement for a hose with incorrect length or fit

Installation Notes and Tips

Verify the hose routing and connection sizes before installation. This hose uses 16 mm ID hose ends and is intended for the return side of the power steering system, not high-pressure pump output. Inspect adjacent clamps, seals, and mounting points during service so the replacement restores the system to proper condition.

Quality Assurance

Sunsong manufactures this hose with high-grade steel tubing and a zinc electroplated finish to improve resistance to corrosion, rust, humidity, road salt, water, and grime. The design is precision engineered for exact fit and may include required support components as part of the application-specific construction.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2012SubaruForesterN/A—
2011SubaruForesterN/A—
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACI — 81641Sunsong — 340372034611SC020