HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3401572 Power Steering Pressure Line Hose Assembly
Part #: 3401572

Sunsong 3401572 Power Steering Pressure Line Hose Assembly

⚙️ 9 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick and Cadillac, Commercial Chassis, Roadmaster, and Fleetwood
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Overview of Sunsong Power Steering Pressure Line Hose Assembly

The Sunsong 3401572 power steering pressure line hose assembly is designed for reliable hydraulic performance in select Buick and Cadillac vehicles. Engineered to meet the specifications of commercial chassis, Fleetwood, and Roadmaster models, this hose assembly ensures proper fluid flow and pressure management within the power steering system.

  • Compatible with Buick Commercial Chassis, Cadillac Fleetwood, and Roadmaster models
  • Length: 49.5 inches (1257 mm) for precise fitment
  • End 1 fitting: 16 mm male o-ring
  • End 2 fitting: 18 mm male o-ring
  • Constructed with durable CSM hose material
  • Includes power steering switch port for system integration
  • Part number: 3401572 for accurate identification

Detailed Product Description and Specifications

This Sunsong power steering pressure line hose assembly (part number 3401572) is manufactured using high-quality chlorosulfonated polyethylene (CSM) hose material, known for its resistance to heat, oil, and abrasion. The assembly measures 49.5 inches (1257 mm) in length, providing an exact replacement for the original equipment in compatible Buick and Cadillac vehicles. Both ends feature male o-ring fittings, with the first end sized at 16 mm and the second at 18 mm, ensuring a secure and leak-free connection within the power steering system. Additionally, the hose includes a power steering switch port, allowing for integration with the vehicle’s pressure monitoring components.

Compatible Vehicles and Applications

This power steering pressure line hose assembly is specifically designed for use in the following vehicles:

  • Buick Commercial Chassis
  • Cadillac Fleetwood
  • Cadillac Roadmaster

It is intended to replace worn or damaged pressure line hoses that can cause steering performance issues or fluid leaks.

Common Issues Addressed by This Hose Assembly

  • Power steering fluid leaks due to cracked or deteriorated hoses
  • Reduced steering responsiveness caused by pressure loss
  • Noise or whining from the power steering pump due to improper fluid flow
  • Failure of the power steering switch port connection
  • Hose damage from heat or abrasion in the engine compartment

Installation Notes and Technical Tips

When installing the Sunsong 3401572 power steering pressure line hose assembly, ensure that the fittings are properly seated and the o-rings are intact to prevent leaks. The hose length of 49.5 inches (1257 mm) should match the original equipment for correct routing. The included power steering switch port must be connected according to the vehicle’s service manual. Refer to technical tips TT1000 and TT1001 for additional guidance on installation and maintenance.

Quality Assurance and Warranty Information

Sunsong power steering components are manufactured to meet or exceed OEM standards for durability and performance. The 3401572 hose assembly undergoes rigorous quality control to ensure resistance to heat, pressure, and fluid exposure. While specific warranty details may vary, Sunsong products typically include coverage against manufacturing defects. Consult the product documentation or supplier for exact warranty terms.

BrandSunsong
Part Number3401572
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)49.5
Length (mm)1257
PS Switch Port (Y/N)Y
Tech TipTT1000|TT1001

This part fits 9 vehicles. Search below:

YearMakeModelPositionNotes
1996BuickRoadmasterN/Aw/ Variable Assist, Pressure Fitting Of Pump Is Equipped With An Electronic Sender On Vehicles With Variable Assist
1996CadillacCommercial ChassisN/A
1996CadillacFleetwoodN/A
1995BuickRoadmasterN/Aw/ Variable Assist, Pressure Fitting Of Pump Is Equipped With An Electronic Sender On Vehicles With Variable Assist
1995CadillacCommercial ChassisN/A
1995CadillacFleetwoodN/A
1994BuickRoadmasterN/Aw/ Variable Assist, Pressure Fitting Of Pump Is Equipped With An Electronic Sender On Vehicles With Variable Assist
1994CadillacCommercial ChassisN/A
1994CadillacFleetwoodN/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:

1822603474336-36855036855091779979-2405

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