HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3401139 Power Steering Return Line Hose Assembly - Cooler To Reservoir
Part #: 3401139

Sunsong 3401139 Power Steering Return Line Hose Assembly - Cooler To Reservoir

Cooler To Reservoir
⚙️ 21 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Volkswagen and Audi, Passat, A4, and A4 Quattro
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Power Steering Return Line Hose Assembly Overview

The Sunsong 3401139 power steering return line hose assembly is designed for reliable fluid return in select Audi and Volkswagen models. Engineered with durable CSM hose material and precise 3/8 inch ID hose fittings, this 17.8-inch hose ensures proper fit and function for your vehicle's power steering system.

  • Compatible with Audi A4, A4 Quattro, and Volkswagen Passat models
  • Part number 3401139 for accurate identification
  • 3/8 inch inner diameter hose fittings on both ends
  • Constructed from CSM (chlorosulfonated polyethylene) for durability and resistance
  • Length of 17.8 inches (452 mm) for exact fitment

Detailed Product Description

This Sunsong power steering return line hose assembly (part number 3401139) is specifically designed to meet the requirements of Audi A4, A4 Quattro, and Volkswagen Passat vehicles. The hose features 3/8 inch ID fittings on both ends, allowing for secure connections within the power steering system. Made from CSM material, the hose offers resistance to heat, oil, and abrasion, which is critical for maintaining system integrity under operating conditions. With a length of 17.8 inches (452 mm), this hose assembly fits precisely, ensuring proper fluid flow and preventing leaks.

Common Applications and Issues Addressed

  • Replacement of worn or cracked power steering return hoses
  • Resolving power steering fluid leaks that cause steering difficulty
  • Eliminating hose swelling or softening due to heat exposure
  • Preventing contamination of power steering fluid from external debris
  • Maintaining consistent hydraulic pressure for smooth steering response

Installation Notes and Tips

When installing the Sunsong 3401139 power steering return line hose assembly, ensure the vehicle is safely lifted and the power steering system is depressurized. Verify the hose length and fitting sizes match the original equipment. Use appropriate clamps and torque specifications to avoid leaks. The Tech Tip TT1000 can be referenced for additional installation guidance. Inspect the surrounding components for wear or damage during replacement.

Quality Assurance and Warranty

Sunsong power steering hoses are manufactured to meet or exceed OEM standards for durability and performance. The CSM hose material provides resistance to common automotive fluids and environmental factors. While specific warranty details are not provided here, Sunsong products typically come with a limited warranty against defects in material and workmanship. Consult product documentation or supplier information for exact warranty terms.

BrandSunsong
Part Number3401139
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)17.8
Length (mm)452
Tech TipTT1000

This part fits 21 vehicles. Search below:

YearMakeModelPositionNotes
2005VolkswagenPassatCooler To Reservoir
2004VolkswagenPassatCooler To Reservoir
2003VolkswagenPassatCooler To Reservoir
2002AudiA4Cooler To ReservoirThrough Chassis # 8D-W-007800
2002VolkswagenPassatCooler To Reservoir
2001AudiA4Cooler To Reservoir
2001AudiA4 QuattroCooler To Reservoir
2001VolkswagenPassatCooler To Reservoir
2000AudiA4Cooler To Reservoir
2000AudiA4 QuattroCooler To Reservoir
2000VolkswagenPassatCooler To Reservoir
1999AudiA4Cooler To Reservoir
1999AudiA4 QuattroCooler To Reservoir
1999VolkswagenPassatCooler To Reservoir
1998AudiA4Cooler To Reservoir
1998AudiA4 QuattroCooler To Reservoir
1998VolkswagenPassatCooler To Reservoir
1997AudiA4Cooler To Reservoir
1997AudiA4 QuattroCooler To Reservoir
1996AudiA4Cooler To Reservoir
1996AudiA4 QuattroCooler 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:

34011393527675738811408D0422891C979-005PSH0148

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