HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3401523 Power Steering Return Line Hose Assembly
Part #: 3401523

Sunsong 3401523 Power Steering Return Line Hose Assembly

⚙️ 18 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Oldsmobile, Pontiac, and Buick, Delta 88, Bonneville, Electra, LeSabre, and 98
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Overview of Sunsong Power Steering Return Line Hose Assembly

The Sunsong 3401523 power steering return line hose assembly is designed for reliable fluid return in select Buick, Oldsmobile, and Pontiac vehicles. This hose assembly ensures proper hydraulic function in power steering systems for models such as the Buick LeSabre, Oldsmobile Delta 88, and Pontiac Bonneville.

  • Length: 191.5 inches (4864 mm) for extended reach
  • End 1 fitting: 3/8 inch ID hose connection
  • End 2 fitting: 16 mm male o-ring type
  • Constructed with durable CSM hose material
  • No bracket included
  • No power steering switch port

Detailed Product Description

This power steering return line hose assembly (part number 3401523) from Sunsong is engineered to meet the specifications required for proper fluid return in power steering systems of Buick, Oldsmobile, and Pontiac vehicles. The hose features a 3/8 inch internal diameter hose fitting on one end and a 16 mm male o-ring fitting on the other, providing secure and leak-resistant connections. Made from CSM (chlorosulfonated polyethylene) material, the hose offers resistance to heat, oil, and abrasion, which is critical for maintaining system integrity under demanding operating conditions.

With a length of 191.5 inches (4864 mm), this return line hose assembly is suitable for routing in the engine bay of compatible vehicles without the need for modifications. The absence of a bracket and power steering switch port simplifies installation and reduces potential failure points.

Compatible Vehicles and Applications

  • Buick LeSabre
  • Oldsmobile Delta 88
  • Pontiac Bonneville
  • Buick 98

This part is specifically designed for power steering systems in these models, ensuring proper fit and function.

Common Issues Addressed by This Hose Assembly

  • Leaking or cracked power steering return lines
  • Reduced power steering fluid flow causing steering difficulty
  • Hose deterioration due to heat and chemical exposure
  • Loose or damaged fittings causing fluid loss
  • Replacement of worn or aged return line hoses to maintain system performance

Installation Notes and Tips

  • Verify compatibility with your vehicle’s make and model before installation
  • Ensure all fittings are clean and free of debris prior to assembly
  • Use proper tools to avoid damaging the male o-ring fitting
  • Check for leaks after installation by running the engine and turning the steering wheel
  • Refer to technical tips Tt1000, tt1002, and tt1003 for additional guidance

Quality Assurance and Warranty

Sunsong power steering hoses are manufactured to meet industry standards for durability and performance. The 3401523 hose assembly undergoes rigorous quality control to ensure leak-free operation and long service life. While specific warranty details may vary, Sunsong products typically come with a limited warranty against defects in materials and workmanship.

BrandSunsong
Part Number3401523
End 1 Fitting Size (in)3/8
End 1 Fitting TypeID Hose
End 2 Fitting Size (mm)16
End 2 Fitting TypeMale O-Ring
Hose Material 1CSM
Length (in)191.5
Length (mm)4864
Tech TipTT1000|TT1002|TT1003

This part fits 18 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
1991OldsmobileDelta 88N/AExc. Finned Cooler
1991PontiacBonnevilleN/AExc. Finned Cooler
1990BuickLeSabreFWDN/A
1990Oldsmobile98N/AExc. Finned Cooler
1990OldsmobileDelta 88N/AExc. Finned Cooler
1990PontiacBonnevilleN/AExc. Finned Cooler
1989BuickLeSabreFWDN/A
1989Oldsmobile98N/A
1989OldsmobileDelta 88N/A
1989PontiacBonnevilleN/A
1988BuickLeSabreFWDN/A
1988Oldsmobile98N/A
1988OldsmobileDelta 88N/A
1988PontiacBonnevilleN/A
1987BuickLeSabreFWDN/A
1987Oldsmobile98N/A
1987OldsmobileDelta 88N/A
1987PontiacBonnevilleN/A

* 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:

255288282601428436-3699203699207005391784979-4012

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