HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3402373 Power Steering Return Line Hose Assembly - Cooler To Reservoir
Part #: 3402373

Sunsong 3402373 Power Steering Return Line Hose Assembly - Cooler To Reservoir

Cooler To Reservoir
⚙️ 20 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick, Pontiac, Chevrolet, and Oldsmobile, Rendezvous, Montana, Aztek, Venture, and Silhouette
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Overview of Sunsong Power Steering Return Line Hose Assembly

The Sunsong 3402373 power steering return line hose assembly is designed for reliable fluid return in power steering systems. Compatible with select Buick, Oldsmobile, and Pontiac models, this hose assembly ensures proper steering performance and fluid flow.

  • Compatible with Buick Aztek, Oldsmobile Silhouette, Pontiac Montana, Rendezvous
  • Length: 29.6 inches (751 mm) for precise fitment
  • 3/8 inch inner diameter hose fittings on both ends
  • Constructed with durable CSM hose material for resistance to heat and wear
  • No bracket included, designed for direct hose-to-hose connection
  • Part number 3402373 for accurate identification and replacement

Detailed Product Description

This Sunsong power steering return line hose assembly (part number 3402373) features 3/8 inch inner diameter hose fittings on both ends, allowing for secure and leak-resistant connections within the power steering system. The hose is made from CSM (chlorosulfonated polyethylene) material, known for its durability and resistance to heat, ozone, and hydraulic fluids. Measuring 29.6 inches (751 mm) in length, this hose assembly is engineered to match the original equipment specifications for select Buick, Oldsmobile, and Pontiac vehicles, including the Aztek, Montana, Rendezvous, and Silhouette models.

Common Applications and Issues Addressed

  • Replacement of worn or cracked power steering return hoses
  • Elimination of fluid leaks causing low power steering fluid levels
  • Restoration of proper hydraulic pressure and steering response
  • Prevention of hose failure due to heat and chemical degradation
  • Resolution of steering noise or stiffness related to hose damage

Installation Notes and Tips

This power steering return line hose assembly does not include a mounting bracket and is designed for direct hose-to-hose installation. Ensure the 3/8 inch inner diameter fittings match the vehicle’s existing connections. Before installation, inspect the power steering system for any additional wear or damage. Follow manufacturer torque specifications and use proper tools to avoid damaging fittings or hose ends. The included tech tip (Tt1000) suggests verifying hose routing to prevent kinks or interference with other components.

Quality Assurance and Warranty

Sunsong power steering hoses are manufactured to meet or exceed OEM standards for durability and performance. The 3402373 hose assembly undergoes rigorous quality control to ensure resistance to heat, pressure, and hydraulic fluid exposure. While specific warranty details may vary, Sunsong products typically include a limited warranty against defects in materials and workmanship. Consult product documentation or supplier for exact warranty terms.

BrandSunsong
Part Number3402373
End 1 Fitting Size (in)3/8
End 1 Fitting TypeID Hose
End 2 Fitting Size (in)3/8
End 2 Fitting TypeID Hose
Hose Material 1CSM
Length (in)29.6
Length (mm)751
Tech TipTT1000

This part fits 20 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
2007BuickRendezvousCooler To Reservoir
2006BuickRendezvousCooler To Reservoir
2006PontiacMontanaAWDCooler To Reservoir
2005BuickRendezvousCooler To Reservoir
2005PontiacAztekCooler To Reservoir
2005PontiacMontanaAWDCooler To Reservoir
2004BuickRendezvousFWDCooler To Reservoir
2004BuickRendezvousAWDCooler To Reservoir
2004OldsmobileSilhouetteAWDCooler To Reservoir
2004PontiacAztekCooler To Reservoir
2004PontiacMontanaAWDCooler To Reservoir
2003BuickRendezvousCooler To Reservoir
2003OldsmobileSilhouetteAWDCooler To Reservoir
2003PontiacAztekCooler To Reservoir
2003PontiacMontanaAWDCooler To Reservoir
2002BuickRendezvousCooler To Reservoir
2002OldsmobileSilhouetteAWDCooler To Reservoir
2002PontiacAztekCooler To Reservoir
2002PontiacMontanaAWDCooler To Reservoir
2001PontiacAztekCooler To Reservoir

* 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:

157776201583916920027260739602608631736-36557536557592193

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