HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3402029 Power Steering Pressure Line Hose Assembly
Part #: 3402029

Sunsong 3402029 Power Steering Pressure Line Hose Assembly

2 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Oldsmobile, Toronado
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OE-Style Power Steering Pressure Hose

Sunsong 3402029 is a power steering pressure line hose assembly built for direct replacement on the 1977-1978 Oldsmobile Toronado. It is engineered to match OEM specifications and restore proper steering system pressure routing for a clean, serviceable repair.

For shoppers searching for a 1977-1978 Oldsmobile Toronado power steering pressure hose, this assembly is designed around the original application and the required hose-end dimensions. The Sunsong 3402029 part number is also a useful reference when comparing replacement options for the same vehicle.

Key Features

  • Power steering pressure line hose assembly for steering system repair
  • Fits 1977-1978 Oldsmobile Toronado, N/A
  • End 1 fitting: 5/8 in. male inverted flare
  • End 2 fitting: 11/16 in. male inverted flare
  • 35.5 in. hose length for application-specific routing
  • CSM hose material for fluid resistance and durability
  • Built to OEM specifications for direct-fit replacement
  • Part number: 3402029

Detailed Description

This Sunsong pressure hose is designed for the steering system on the Oldsmobile Toronado and follows the original equipment layout for the 1977-1978 model years. The hose assembly uses high-grade steel tubing with zinc electroplating to improve resistance to corrosion from humidity, road salt, water, and grime. Sunsong 3402029 is also pressure tested before it leaves the factory to verify performance and help ensure trouble-free operation after installation.

For buyers comparing replacement steering hoses, this part cross-references Dayco 70859 and Gates 353790 for the same application. If you need a 1977 Oldsmobile Toronado power steering pressure line hose assembly or a 1978 Oldsmobile Toronado steering pressure hose, this OE-style replacement is built to match the original fit and connection points.

Common Problems This Part Can Address

  • Leaking power steering pressure line
  • Cracked or worn hose material
  • Corrosion on steel tubing or fittings
  • Loss of steering assist from pressure loss
  • Noise or fluid seepage at hose connections

Installation Notes and Tips

Verify the hose-end sizes, routing, and connection style before installation. This assembly uses male inverted flare fittings at both ends and does not include a bracket or power steering switch port. Inspect adjacent steering components, seals, and mounting points for wear before completing the repair on your Oldsmobile Toronado.

Quality Assurance

Each Sunsong 3402029 hose is pressure tested at the factory to confirm function before shipment. The construction uses corrosion-resistant steel tubing and application-specific engineering to support consistent steering system performance on the 1977-1978 Oldsmobile Toronado.

BrandSunsong
Part Number3402029
Bracket (Y/N)N
End 1 Fitting Size (in)5/8
End 1 Fitting TypeMale inverted flare
End 2 Fitting Size (in)11/16
End 2 Fitting TypeMale inverted flare
Hose Material 1Csm
Length (in)35.5
Length (mm)901
PS Switch Port (Y/N)N
Tech TipTt1000

This part fits 2 vehicles. Search below:

YearMakeModelPositionNotes
1978OldsmobileToronadoN/APower Steering Pressure Line Hose Assembly designed to OEM specifications.
1977OldsmobileToronadoN/APower Steering Pressure Line Hose Assembly designed to OEM specifications.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

321594532165203219353322339732240233228249323342635379036-353790459708597816968979-2352

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.