HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3401772 Power Steering Pressure Line Hose Assembly
Part #: 3401772

Sunsong 3401772 Power Steering Pressure Line Hose Assembly

24 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, C10, C10 Suburban, C20, C20 Suburban, C30, C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, K3500, K20, C15, C15 Suburban, C25, C25 Suburban, C35, K25, K30, and K25 Suburban
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Overview of Sunsong Power Steering Pressure Line Hose Assembly

The Sunsong 3401772 power steering pressure line hose assembly is designed for reliable hydraulic performance in select Chevrolet and GMC trucks and SUVs. Engineered to meet OEM specifications, this hose assembly ensures proper fluid transfer under high pressure for smooth steering operation.

  • Compatible with Chevrolet and GMC C10, C20, C30, K20, K30, and C1500 to C3500 models including Suburban variants
  • 27.5 inches (698 mm) in length for precise fitment
  • Constructed with durable CSM hose material for resistance to heat and wear
  • Features male inverted flare fittings: 11/16 inch on end 1 and 5/8 inch on end 2
  • Does not include bracket or power steering switch port

Detailed Product Description

The Sunsong 3401772 power steering pressure line hose assembly is built to maintain hydraulic pressure in the power steering system of Chevrolet and GMC trucks such as the C10, C20, C30, K20, and their Suburban and heavy-duty variants. The hose is made from chlorosulfonated polyethylene (CSM), a material known for its durability and resistance to heat, oil, and abrasion, which is critical for the demanding environment of power steering systems.

This assembly measures 27.5 inches (698 mm) in length, providing an exact fit for the specified vehicle models. Both ends feature male inverted flare fittings, with the first end sized at 11/16 inch and the second at 5/8 inch, ensuring secure and leak-free connections. The absence of a bracket or power steering switch port simplifies installation and compatibility with factory mounting points.

Common Applications and Issues Addressed

  • Replacement of worn or leaking power steering pressure hoses on Chevrolet C10 and C20 trucks
  • Restoring proper hydraulic pressure in GMC K20 and K30 power steering systems
  • Eliminating fluid leaks that cause steering difficulty or noise
  • Addressing hose damage from heat exposure or abrasion
  • Upgrading aging hoses to maintain steering responsiveness in C1500 and C3500 models

Installation Notes and Tips

  • Verify hose length and fitting sizes before installation to ensure compatibility
  • Use proper tools to avoid damaging inverted flare fittings during removal and installation
  • Inspect power steering fluid levels and system for leaks after installation
  • Follow vehicle manufacturer torque specifications for fittings
  • Bleed the power steering system to remove air and restore proper function

Quality Assurance and Warranty

Sunsong power steering hoses are manufactured to meet or exceed OEM standards for durability and performance. The 3401772 hose assembly undergoes rigorous testing to ensure resistance to pressure, heat, and fluid compatibility. While specific warranty details may vary, Sunsong products typically include a limited warranty against defects in materials and workmanship, providing confidence in long-term reliability.

BrandSunsong
Part Number3401772
End 1 Fitting Size (in)11/16
End 1 Fitting TypeMale Inverted Flare
End 2 Fitting Size (in)5/8
End 2 Fitting TypeMale Inverted Flare
Hose Material 1CSM
Length (in)27.5
Length (mm)698
Tech TipTT1000

This part fits 24 vehicles. Search below:

YearMakeModelPositionNotes
1979ChevroletC10N/AExclude fitment for vehicles equipped with Hydroboost.
1979ChevroletC10 SuburbanN/A
1979ChevroletC20N/AExclude fitment for vehicles equipped with Hydroboost.
1979ChevroletC20 SuburbanN/A
1979ChevroletC30N/AExclude fitment for vehicles equipped with Hydroboost.
1979GMCC1500N/A
1979GMCC1500 SuburbanN/A
1979GMCC2500N/A
1979GMCC2500 SuburbanN/A
1979GMCC3500N/A
1979GMCK3500N/A
1978ChevroletC10N/AExclude fitment for vehicles equipped with Hydroboost.
1978ChevroletC10 SuburbanN/A
1978ChevroletC20N/AExclude fitment for vehicles equipped with Hydroboost.
1978ChevroletC20 SuburbanN/A
1978ChevroletC30N/AExclude fitment for vehicles equipped with Hydroboost.
1978ChevroletK20N/AExclude fitment for vehicles equipped with Hydroboost.
1977ChevroletC10N/A
1977ChevroletC10 SuburbanN/A
1977ChevroletC20N/A
1977ChevroletC20 SuburbanN/A
1977ChevroletC30N/A
1977ChevroletK20N/A
1977ChevroletK30N/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:

36-3616203616205106710327827948979-1141

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