HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3401645 Power Steering Pressure Line Hose Assembly
Part #: 3401645

Sunsong 3401645 Power Steering Pressure Line Hose Assembly

⚙️ 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: Buick, Chevrolet, Oldsmobile, and Pontiac, 6000, Celebrity, Century, and Cutlass Ciera
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Reliable Power Steering Pressure Line Hose Assembly

The Sunsong 3401645 power steering pressure line hose assembly is engineered for precise fitment and durability. Designed specifically for select Buick, Chevrolet, Oldsmobile, and Pontiac models, this hose assembly ensures consistent hydraulic pressure for smooth steering performance.

  • Compatible with Buick Century, Chevrolet Celebrity, Oldsmobile Cutlass Ciera, and Pontiac 6000
  • Length of 49.9 inches (1267 mm) for exact fit
  • End 1 fitting: 16 mm male o-ring
  • End 2 fitting: 18 mm male o-ring
  • Constructed with CSM hose material for resistance to heat and wear
  • Includes power steering switch port for system monitoring
  • No bracket included

Detailed Product Description

The Sunsong 3401645 power steering pressure line hose assembly is built with high-quality chlorosulfonated polyethylene (CSM) hose material, providing excellent resistance to heat, oil, and abrasion. The hose measures 49.9 inches (1267 mm) in length, making it suitable for the specified vehicle models. Both ends feature male o-ring fittings—16 mm on one end and 18 mm on the other—ensuring a secure, leak-free connection within the power steering system. Additionally, this assembly includes a power steering switch port, allowing for integration with the vehicle’s steering pressure monitoring system. This part is designed without a bracket, so verify mounting requirements before installation.

Compatible Vehicles and Applications

  • Buick Century power steering hose replacement
  • Chevrolet Celebrity power steering pressure line
  • Oldsmobile Cutlass Ciera hydraulic steering hose
  • Pontiac 6000 power steering pressure hose assembly

Common Issues Addressed by This Hose Assembly

  • Leaking or cracked power steering pressure lines causing fluid loss
  • Reduced steering responsiveness due to pressure line failure
  • Power steering pump damage from inadequate fluid flow
  • Noise or whining from air entering the steering system
  • Faulty power steering switch port affecting system diagnostics

Installation Notes and Tips

Before installation, ensure the vehicle is safely supported and the power steering system is depressurized. Confirm the hose length and fitting sizes (16 mm and 18 mm male o-ring) match your vehicle’s specifications. The included power steering switch port requires proper connection to maintain system functionality. Since this assembly does not include a bracket, verify existing mounting points and hardware compatibility. Follow manufacturer torque specifications when tightening fittings to prevent leaks.

Quality Assurance and Warranty

Sunsong power steering components are manufactured to meet or exceed OEM standards for durability and performance. The 3401645 hose assembly undergoes rigorous testing to ensure resistance to heat, pressure, and wear. While specific warranty details are not provided, Sunsong products typically come with limited warranties covering defects in materials and workmanship. Consult product documentation or your supplier for exact warranty terms.

BrandSunsong
Part Number3401645
Bracket (Y/N)N
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)49.9
Length (mm)1267
PS Switch Port (Y/N)Y
Tech TipTt1000|tt1001

This part fits 21 vehicles. Search below:

YearMakeModelSubmodelBody TypeDrive TypePositionNotes
1991Pontiac6000N/A
1990BuickCenturyN/A
1990ChevroletCelebrityN/A
1990Pontiac6000FWDN/A
1989BuickCenturyN/A
1989ChevroletCelebrityN/A
1989OldsmobileCutlass CieraSLSedanN/A
1989OldsmobileCutlass CieraSLCoupeN/A
1989OldsmobileCutlass CieraBaseSedanN/A
1989OldsmobileCutlass CieraBaseCoupeN/A
1989Pontiac6000FWDN/A
1989Pontiac6000N/A
1988BuickCenturyN/A
1988ChevroletCelebrityN/A
1988OldsmobileCutlass CieraSLCoupeN/A
1988OldsmobileCutlass CieraSCoupeN/A
1988OldsmobileCutlass CieraLSSedanN/A
1988OldsmobileCutlass CieraBroughamSedanN/A
1988OldsmobileCutlass CieraBaseCoupeN/A
1988Pontiac6000FWDN/A
1988Pontiac6000N/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:

26006212260154293025436-36655036655091658979-2424

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