Sunsong 3403728 Power Steering Reservoir Hose
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Sunsong

Sunsong 3403728 Power Steering Reservoir Hose

Brand Sunsong 3403728
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) 19
Length (mm) 482
Tech Tip TT1000
Fits Subaru · 7 vehicles

Exact-fit engineering. Precision-built to restore original condition with no modifications needed.

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

High-pressure return hose. Rated for 250 psi and low-pressure, high-temperature operation.

Cross-references Dorman - HELP 81642, Sunsong 3403728 and 34611XA00A for the same application. See all 3.

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Sunsong 3403728 Power Steering Reservoir Hose

Sunsong 3403728 is a power steering reservoir return hose built for low-pressure, high-temperature service. It is engineered for direct replacement on select Subaru Tribeca and Subaru B9 Tribeca applications, with fitment matched to the original routing and connection points.

  • 16 mm ID hose ends on both sides for a direct-fit connection
  • 19 in. (482 mm) hose length for the specified Subaru routing
  • CPE hose material for power steering return service
  • Maximum working pressure of 250 psi
  • Precision-engineered replacement for 2006-2007 Subaru B9 Tribeca and 2008-2012 Subaru Tribeca

Built for Return-Line Service

This Sunsong power steering reservoir hose is made to replace the return side of the steering system, where fluid moves under lower pressure but can still see elevated temperatures. The hose construction and exact-fit design help restore proper fluid transfer on 2006-2007 Subaru B9 Tribeca and 2008-2012 Subaru Tribeca models. Part number 3403728 is also referenced by Dorman - HELP 81642 and Subaru OE number 34611XA00A for the same application.

Common Problems This Hose Can Address

  • Cracked or hardened return hose material
  • Power steering fluid seepage at the hose connection
  • Restricted fluid return caused by aged tubing
  • Noise or uneven steering feel related to fluid loss
  • Corrosion-related deterioration on exposed steering hose routing

Installation Notes and Tips

Verify end sizes, hose length, and routing before installation. This hose uses 16 mm ID hose fittings at both ends and measures 19 inches long, so matching the original path and connection style is important for proper fitment. Inspect nearby brackets, grommets, heat shields, bushings, and protective sleeves during service and replace worn components as needed to restore the original routing condition.

Quality Assurance

Sunsong manufactures this hose to exceed original equipment performance standards for return-hose service. The steel tubing is electroplated with a zinc coating to improve resistance to rust and corrosion from humidity, road salt, water, and grime.

Related reading

This part fits 7 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2012SubaruTribecaN/A—
2011SubaruTribecaN/A—
2010SubaruTribecaN/A—
2009SubaruTribecaN/A—
2008SubaruTribecaN/A—
2007SubaruB9 TribecaN/A—
2006SubaruB9 TribecaN/A—
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - HELP — 81642Sunsong — 340372834611XA00A