HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3402258 Power Steering Pressure Line Hose Assembly - Pump To Hydroboost
Part #: 3402258

Sunsong 3402258 Power Steering Pressure Line Hose Assembly - Pump To Hydroboost

Pump To Hydroboost
19 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet and GMC, Express 1500, Express 2500, Express 3500, Silverado 2500, Savana 1500, Savana 2500, Savana 3500, and Cargo Van
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Power Steering Pressure Line Hose Assembly Overview

The Sunsong 3402258 power steering pressure line hose assembly is designed for reliable hydraulic fluid transfer in select Chevrolet and GMC vehicles. Engineered to meet OEM specifications, this hose assembly ensures consistent steering performance for models like the Chevrolet Express 1500 and GMC Savana 3500.

  • Compatible with Chevrolet Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500, Silverado 2500
  • Length: 59.2 inches (1504 mm) for precise fitment
  • End fittings: Male o-ring type, 16 mm on one end and 18 mm on the other
  • Constructed with durable CSM hose material for resistance to heat and pressure
  • Includes power steering switch port for integration with vehicle systems

Detailed Product Description

The Sunsong 3402258 power steering pressure line hose assembly is built to maintain hydraulic pressure within the power steering system of compatible Chevrolet and GMC trucks and vans. Its 59.2-inch length and dual male o-ring fittings (16 mm and 18 mm) provide a secure, leak-resistant connection between the power steering pump and steering gear. The hose material, chlorosulfonated polyethylene (CSM), offers enhanced durability against heat, abrasion, and chemical exposure, which is critical for maintaining system integrity under demanding driving conditions. Additionally, the integrated power steering switch port allows for proper sensor function and system monitoring.

Common Applications and Issues Addressed

  • Replacement for worn or leaking power steering pressure hoses
  • Restores proper hydraulic pressure to improve steering response
  • Eliminates fluid leaks that can cause steering system damage
  • Prevents hose failure due to heat and abrasion in Chevrolet Express and GMC Savana models
  • Ensures compatibility with power steering switch sensors for accurate system feedback

Installation Notes and Tips

  • Verify hose length and fitting sizes (16 mm and 18 mm male o-ring) before installation
  • Ensure the power steering switch port is properly connected to maintain sensor functionality
  • Follow vehicle manufacturer torque specifications for fittings to prevent leaks
  • Inspect surrounding components for wear or damage during installation
  • Bleed the power steering system after installation to remove air and ensure optimal performance

Quality Assurance and Warranty

Sunsong power steering hoses are manufactured to meet or exceed OEM standards for durability and performance. The 3402258 hose assembly undergoes rigorous testing to ensure resistance to pressure, heat, and chemical exposure. While specific warranty details may vary, Sunsong products typically include coverage against defects in materials and workmanship. Consult product documentation or your supplier for exact warranty terms.

BrandSunsong
Part Number3402258
End 1 Fitting Size (mm)16
End 1 Fitting TypeMale O-Ring
End 2 Fitting Size (mm)18
End 2 Fitting TypeMale O-Ring
Hose Material 1CSM
Length (in)59.2
Length (mm)1504
PS Switch Port (Y/N)Y
Tech TipTT1000|TT1001|TT1004|TT1008

This part fits 19 vehicles. Search below:

YearMakeModelPositionNotes
2005ChevroletExpress 1500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2005ChevroletExpress 2500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2005ChevroletExpress 3500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2005ChevroletSilverado 2500Pump To Hydroboost
2005GMCSavana 1500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2005GMCSavana 2500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2005GMCSavana 3500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2004ChevroletExpress 1500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2004ChevroletExpress 2500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2004ChevroletExpress 3500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2004GMCSavana 1500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2004GMCSavana 2500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2004GMCSavana 3500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2003ChevroletExpress 1500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2003ChevroletExpress 2500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2003ChevroletExpress 3500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2003GMCSavana 1500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2003GMCSavana 2500Pump To Hydroboostw/ Hydroboost, w/ Switchport
2003GMCSavana 3500Pump To Hydroboostw/ Hydroboost, w/ Switchport

* 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:

2575847936-365687365687552029229492294E

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