Sunsong 3402029 Power Steering Pressure Line Hose Assembly

Brand Sunsong 3402029
Bracket (Y/N) N
End 1 Fitting Size (in) 5/8
End 1 Fitting Type Male inverted flare
End 2 Fitting Size (in) 11/16
End 2 Fitting Type Male inverted flare
Hose Material 1 Csm
Length (in) 35.5
Length (mm) 901
PS Switch Port (Y/N) N
Tech Tip Tt1000
Fits Oldsmobile · 31 vehicles

Exact-fit engineering. Precision-built for trouble-free installation and operation.

Zinc-coated steel tubing. Helps resist corrosion from humidity, road salt, water, and grime.

Pressure-tested hose assembly. Exceeds original equipment performance standards for durability.

Cross-references Dayco 70859, Gates 353790 and Hayden 459 for the same application. See all 13.

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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.

This part fits 31 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelNotes
1979American MotorsConcordPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1979American MotorsSpiritPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1978American MotorsAMXPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1978American MotorsConcordPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1978American MotorsMatadorPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1978OldsmobileToronadoPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1977American MotorsHornetPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1977American MotorsMatadorPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1977OldsmobileToronadoPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1976American MotorsGremlinPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1976American MotorsHornetPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1976American MotorsMatador—
1976American MotorsMatadorPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1975American MotorsGremlinPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1975American MotorsHornetPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1975American MotorsMatador—
1975American MotorsMatadorPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1974American MotorsAmbassadorPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1974American MotorsGremlinPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1974American MotorsHornetPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1974American MotorsJavelinPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1974American MotorsMatadorPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1973American MotorsAmbassadorPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1973American MotorsGremlinPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1973American MotorsHornetPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1973American MotorsJavelinPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1973American MotorsMatadorPower Steering Pressure Line Hose Assembly designed to OEM specifications.
1972American MotorsAmbassadorw/ Saginaw Power Steering Pump, OEM Design
1972American MotorsGremlinw/ Saginaw Power Steering Pump, OEM Design
1972American MotorsJavelinw/ Saginaw Power Steering Pump, OEM Design
1972American MotorsMatadorw/ Saginaw Power Steering Pump, OEM Design
Directly replaces or cross-references 13 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dayco — 70859Gates — 353790Hayden — 45936-353790979-235232159453216520321935332233973224023322824932334267816968