HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3402665 Power Steering Pressure Line Hose Assembly - Pump To Hydroboost
Part #: 3402665

Sunsong 3402665 Power Steering Pressure Line Hose Assembly - Pump To Hydroboost

Pump To Hydroboost
⚙️ 6 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$41.09Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ 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: Chevrolet and GMC, P30 and P3500
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Sunsong Power Steering Pressure Line Hose Assembly

The Sunsong 3402665 power steering pressure line hose assembly is designed for reliable hydraulic fluid transfer in Chevrolet and GMC P30 and P3500 vehicles. Engineered with durable CSM hose material and precise fittings, this hose assembly supports efficient power steering system performance.

  • Compatible with Chevrolet P30 and GMC P3500 models
  • Length: 46.5 inches (1181 mm) for optimal fitment
  • End 1 fitting: 16 mm male o-ring
  • End 2 fitting: 18 mm male o-ring
  • Constructed with CSM hose material for durability and flexibility
  • No bracket included
  • Part number: 3402665

Detailed Product Description

The Sunsong 3402665 power steering pressure line hose assembly is built to meet the specifications required by Chevrolet and GMC heavy-duty vehicles, specifically the P30 and P3500 models. The hose features a 46.5-inch length, providing the necessary reach for proper routing within the power steering system. Both ends of the hose are equipped with male o-ring fittings—16 mm on one end and 18 mm on the other—ensuring a secure, leak-resistant connection to the power steering pump and steering gear. The hose material is CSM (chlorosulfonated polyethylene), known for its resistance to heat, oil, and abrasion, which contributes to the longevity and reliability of the assembly under demanding operating conditions.

Common Applications and Issues Addressed

  • Replacement of worn or leaking power steering pressure hoses in Chevrolet P30 and GMC P3500
  • Resolving power steering fluid leaks that cause steering difficulty or noise
  • Addressing hose damage from heat exposure or abrasion
  • Restoring proper hydraulic pressure for smooth steering response
  • Preventing contamination and maintaining system integrity

Installation Notes and Tips

When installing the Sunsong 3402665 power steering pressure line hose assembly, ensure the vehicle is safely supported and the power steering system is depressurized. Verify the correct orientation of the 16 mm and 18 mm male o-ring fittings to match the pump and steering gear connections. Avoid twisting or kinking the hose during installation to maintain fluid flow and prevent premature wear. The hose does not include a bracket, so use existing mounting points for secure routing. Follow manufacturer torque specifications for fittings to prevent leaks.

Quality Assurance and Warranty

Sunsong power steering hoses are manufactured to meet or exceed OEM standards for durability and performance. The 3402665 hose assembly undergoes rigorous testing to ensure resistance to heat, pressure, and fluid compatibility. While specific warranty details are not provided, Sunsong products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or supplier for exact warranty terms.

BrandSunsong
Part Number3402665
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)46.5
Length (mm)1181
PS Switch Port (Y/N)N
Tech TipTt1000

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
1999ChevroletP30Pump To Hydroboostw/ Hydroboost, w/o Brake Warning System
1999GMCP3500Pump To Hydroboostw/o Brake Warning System
1998ChevroletP30Pump To Hydroboostw/ Hydroboost, w/o Brake Warning System
1998GMCP3500Pump To Hydroboostw/o Brake Warning System
1997ChevroletP30Pump To Hydroboostw/ Hydroboost, w/o Brake Warning System
1997GMCP3500Pump To Hydroboostw/o Brake Warning System

* 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:

13302604674235209636-35209680540

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