HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3401257 Power Steering Return Line Hose Assembly - Cooler To Reservoir
Part #: 3401257

Sunsong 3401257 Power Steering Return Line Hose Assembly - Cooler To Reservoir

Cooler To Reservoir
14 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus and Toyota, GX470 and 4Runner
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Power Steering Return Line Hose Assembly Overview

The Sunsong 3401257 power steering return line hose assembly is designed specifically for Lexus and Toyota vehicles, including the 4Runner and GX470 models. This hose assembly ensures reliable fluid return flow within the power steering system, maintaining optimal steering performance.

  • Compatible with Lexus 4Runner and Toyota GX470 power steering systems
  • End 1 and End 2 fitting size: 3/8 inch ID hose
  • Durable CSM (chlorosulfonated polyethylene) hose material for enhanced resistance
  • Overall length of 41.8 inches (1062 mm) for precise fitment
  • Part number 3401257 for accurate identification and replacement

Detailed Product Description

This Sunsong power steering return line hose assembly (part number 3401257) is engineered with CSM hose material, known for its resistance to heat, ozone, and hydraulic fluids, which helps extend the service life of the hose. Both ends feature 3/8 inch inner diameter hose fittings, ensuring a secure and leak-free connection within the power steering system. With a length of 41.8 inches (1062 mm), this hose assembly is tailored to fit the power steering return line routing on Lexus 4Runner and Toyota GX470 models, providing a direct replacement that meets OEM specifications.

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 in the power steering system
  • Prevention of steering noise or stiffness due to hose failure
  • Maintenance of safe and responsive steering performance

Installation Notes and Tips

  • Ensure the vehicle is cooled down before beginning installation to avoid injury from hot fluids
  • Drain power steering fluid to prevent spills during hose removal
  • Verify the hose length and fitting sizes match the original part before installation
  • Use appropriate clamps and fittings to secure the hose ends firmly
  • After installation, refill and bleed the power steering system to remove air pockets

Quality Assurance and Warranty

The Sunsong 3401257 power steering return line hose assembly is manufactured to meet industry standards for durability and performance. While specific warranty details are not provided, Sunsong products typically undergo rigorous quality control to ensure reliable operation in compatible Lexus and Toyota vehicles. Always consult vehicle service manuals and follow recommended maintenance procedures when replacing power steering components.

BrandSunsong
Part Number3401257
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)41.8
Length (mm)1062
Tech TipTT1000

This part fits 14 vehicles. Search below:

YearMakeModelPositionNotes
2009LexusGX470Cooler To Reservoir
2009Toyota4RunnerCooler To Reservoir
2008LexusGX470Cooler To Reservoir
2008Toyota4RunnerCooler To Reservoir
2007LexusGX470Cooler To Reservoir
2007Toyota4RunnerCooler To Reservoir
2006LexusGX470Cooler To Reservoir
2006Toyota4RunnerCooler To Reservoir
2005LexusGX470Cooler To Reservoir
2005Toyota4RunnerCooler To Reservoir
2004LexusGX470Cooler To Reservoir
2004Toyota4RunnerCooler To Reservoir
2003LexusGX470Cooler To Reservoir
2003Toyota4RunnerCooler 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:

340125744417350104441735011PSH0517

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