Sunsong 3604978 Power Steering Return Line Hose Assembly - Intermediate Pipe

Brand Sunsong 3604978
Position Intermediate Pipe
Material Steel
Length 12.99
Length 330.00
Bracket Included No
End 1 Fitting Size 11.5
End 1 Fitting Type Beaded tube
End 2 Fitting Size 11.5
End 2 Fitting Type Beaded tube
Switch Port Included No
Fits Acura · 3 vehicles

OE-style replacement. Precision-engineered hose assembly for original routing and fit.

Corrosion-resistant finish. Zinc coating helps protect steel tubing from rust and grime.

Return-line service. Built for low-pressure, high-temperature steering fluid flow.

Cross-references Dorman - HELP 81406, Gates 353051 and Hayden 5987 for the same application. See all 4.

$21.92Free shipping
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Power Steering Return Line Hose

This Sunsong power steering return line hose assembly is built for direct replacement on the steering return circuit. It is engineered for exact fit and corrosion resistance, making it a practical choice for restoring proper fluid routing on the Acura MDX.

Key Features

  • Steel tubing construction with zinc plating for added resistance to rust and corrosion.
  • Rated for low-pressure, high-temperature return line operation.
  • Beaded tube ends for secure hose connection points.
  • Precision-engineered to match original fit and restore worn components.
  • Part number 3604978 for accurate ordering and identification.

Detailed Description

Sunsong 3604978 is a power steering return line hose assembly made from steel and finished with zinc plating to help protect against moisture, road salt, grime, and other corrosive exposure. It is designed for low-pressure return service and is rated up to 250 psi working pressure. The beaded tube ends support a secure connection, while the exact-fit design helps restore the steering fluid path to original routing on the Acura MDX.

This part cross-references Dorman - HELP 81406 for the same application.

For buyers searching for a 2007-2009 Acura MDX power steering return line hose assembly, 3604978 provides a direct-fit replacement option. It is also relevant for Acura MDX steering repair work where corrosion, leakage, or damaged tubing has affected return-line performance.

What It Is Used For

  • Replacing a corroded or rusted steering return hose.
  • Restoring fluid flow in a leaking power steering return line.
  • Repairing damaged steel tubing in the steering circuit.
  • Addressing worn connection points at the beaded tube ends.

Installation Notes and Tips

Fits 2007-2009 Acura MDX, Intermediate Pipe. Verify the routing, end fitting size, and connection style before installation. The hose assembly uses beaded tube ends and is intended for the return side of the power steering system. Part number 3604978 should be matched to the vehicle application before service begins.

Quality Assurance

Sunsong manufactures this hose assembly to exceed original equipment performance standards. The steel tubing and zinc-coated finish are selected to improve resistance to corrosion in demanding underhood and road conditions.

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2009AcuraMDXIntermediate Pipe—
2008AcuraMDXIntermediate Pipe—
2007AcuraMDXIntermediate Pipe—
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - HELP — 81406Gates — 353051Hayden — 598753779STXA11