HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3402376 Power Steering Return Line Hose Assembly - From Gear
Part #: 3402376

Sunsong 3402376 Power Steering Return Line Hose Assembly - From Gear

From Gear
20 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: Buick and Pontiac, LeSabre, Park Avenue, Bonneville, and Riviera
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 3402376 power steering return line hose assembly is designed for reliable fluid return in select Buick and Pontiac models. Engineered to meet OEM specifications, this hose assembly ensures proper steering system function and durability.

  • Compatible with Buick Bonneville, LeSabre, Park Avenue, and Pontiac Riviera
  • Length: 122.3 inches (3106 mm) for precise fitment
  • End 1 fitting: 3/8 inch ID hose connection
  • End 2 fitting: 16 mm male o-ring type
  • Constructed with durable CSM hose material for resistance to heat and wear
  • No bracket included, designed for direct replacement
  • Part number 3402376 for accurate identification

Detailed Product Description

This Sunsong power steering return line hose assembly (part number 3402376) is manufactured using high-quality chlorosulfonated polyethylene (CSM) material, providing excellent resistance to heat, pressure, and fluid degradation. The hose measures 122.3 inches (3106 mm) in length, ensuring a proper fit for the steering systems of Buick Bonneville, LeSabre, Park Avenue, and Pontiac Riviera models. The assembly features a 3/8 inch inner diameter hose fitting on one end and a 16 mm male o-ring fitting on the other, designed to connect seamlessly with existing power steering components. This hose does not include a bracket or power steering switch port, focusing on a straightforward replacement solution.

Common Applications and Issues Addressed

  • Replacement of worn or leaking power steering return line hoses
  • Resolving low power steering fluid pressure due to hose damage
  • Eliminating fluid leaks that cause steering system inefficiency
  • Preventing contamination and maintaining proper fluid flow
  • Addressing hose swelling or cracking from heat exposure

Installation Notes and Tips

  • Ensure the vehicle is cool and pressure is relieved before removal
  • Verify hose length and fitting types match the original assembly
  • Use appropriate tools to avoid damaging fittings during installation
  • Check for leaks after installation and test steering response
  • Refer to technical tips Tt1000 and Tt1001 for additional guidance

Quality Assurance and Warranty

Sunsong power steering hoses are manufactured to meet or exceed OEM standards, ensuring durability and performance. The 3402376 hose assembly undergoes rigorous quality control to provide consistent reliability. Warranty coverage details should be confirmed with the distributor or retailer at the time of purchase.

BrandSunsong
Part Number3402376
End 1 Fitting Size (in)3/8
End 1 Fitting TypeID Hose
End 2 Fitting Size (mm)16
End 2 Fitting TypeMale O-Ring
Hose Material 1CSM
Length (in)122.3
Length (mm)3106
Tech TipTT1000|TT1001

This part fits 20 vehicles. Search below:

YearMakeModelPositionNotes
2005BuickLeSabreFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2005BuickPark AvenueFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2005PontiacBonnevilleFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2004BuickLeSabreFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2004BuickPark AvenueFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2004PontiacBonnevilleFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2003BuickLeSabreFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2003BuickPark AvenueFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2003PontiacBonnevilleFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2002BuickLeSabreFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2002BuickPark AvenueFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2002PontiacBonnevilleFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2001BuickLeSabreFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2001BuickPark AvenueFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2001PontiacBonnevilleFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2000BuickLeSabreFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2000BuickPark AvenueFrom Gearw/ Magnetic Variable Assist, w/ Cooler
2000PontiacBonnevilleFrom Gearw/ Magnetic Variable Assist, w/ Cooler
1999BuickPark AvenueFrom Gearw/ Magnetic Variable Assist, w/ Cooler
1999BuickRivieraFrom GearPower Steering Return Line Hose Assembly - With Cooler

* 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:

2572723036-3656543656548500992264979-5131

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