Sunsong 3603008 Power Steering Pressure Line Hose Assembly - Tube - Tee to Gear

Brand Sunsong 3603008
Position Tube - Tee to Gear
End 1 Fitting Size (mm) 16
End 1 Fitting Type Male O-Ring
End 2 Fitting Size (mm) 18
End 2 Fitting Type Male O-Ring
Hose Material 1 Steel
Length (in) 4.875
Length (mm) 124
Tech Tip TT1000
Fits Chevrolet, Buick, GMC, Oldsmobile, and Pontiac · 37 vehicles

Exact-fit assembly. Precision engineered to restore original-condition performance.

Zinc-coated steel. Helps resist corrosion and rust from humidity, salt, water, and grime.

Pressure-tested quality. Built to exceed OE performance standards for dependable operation.

Cross-references Four Seasons 39138, Gates 349860 and 966 for the same application. See all 5.

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Power Steering Pressure Line Hose for GM Applications

Sunsong 3603008 is a power steering pressure line hose assembly built for select Chevrolet, GMC, Buick, Oldsmobile, and Pontiac vehicles from 1985-1988. It is engineered for the tube-to-gear position and uses male O-ring fittings for a direct replacement on listed applications.

With steel tubing, corrosion-resistant zinc plating, and pressure testing before shipment, this hose is built for demanding steering systems. It is a fitment-based replacement for vehicles such as the Chevrolet Caprice, Monte Carlo, Camaro, and GMC C/K trucks in the listed configurations.

Key Features

  • Part number: Sunsong 3603008
  • Power steering pressure line hose assembly for tube-to-gear routing
  • 16 mm male O-ring end 1 and 18 mm male O-ring end 2
  • Steel hose material with zinc-coated tubing for rust and corrosion resistance
  • Max working pressure: 1,500 psi
  • Burst pressure rating: 8,700 psi
  • Tensile strength: 1,600 lb
  • Precision-engineered to match listed vehicle applications

Detailed Description

Sunsong 3603008 is a replacement power steering pressure line hose assembly for select GM rear-wheel-drive platforms and trucks. It is designed around exact-fit dimensions, including a 4.875-inch overall length, male O-ring fittings, and steel tubing that helps maintain pressure integrity in the steering circuit. The zinc-plated construction adds resistance against humidity, road salt, water, and grime, which is important for vehicles exposed to harsh road conditions. This part cross-references Four Seasons 39138 and Gates 349860 for the same application.

What It Helps Fix

  • Power steering fluid leaks at the pressure line
  • Cracked, corroded, or fatigued steering hose tubing
  • Loss of steering assist from pressure loss in the line
  • Noise or stiffness caused by a failing pressure hose assembly
  • Fitment issues when replacing the original tube-to-gear hose on listed vehicles

Installation Notes and Tips

Verify the end fitting sizes, routing, and position before installation. This hose is listed for tube-to-gear applications and includes fitment-specific notes for certain vehicles, including air conditioning and non-air-conditioning configurations. Confirm the vehicle year, make, model, and steering layout before ordering. For best results, inspect related steering components and replace any worn seals or damaged lines during service.

Quality Assurance

Each Sunsong pressure hose is high-pressure tested before leaving the factory to help ensure proper operation and straightforward installation. The manufacturer states that these hoses are built to exceed original equipment performance standards in pressure capacity and durability.

Compatible Vehicles

  • Fits 1985-1988 Chevrolet Caprice, Tube - Tee to Gear, for vehicles with air conditioning
  • Fits 1986-1988 Chevrolet Monte Carlo, Tube - Tee to Gear, for vehicles with air conditioning
  • Fits 1986-1987 Buick Regal, Tube - Tee to Gear, for vehicles with air conditioning
  • Fits 1987 Chevrolet Camaro, Tube - Tee to Gear, for vehicles with air conditioning
  • Fits 1986-1987 Chevrolet El Camino, Tube - Tee to Gear, for vehicles with air conditioning
  • Fits 1986-1987 Oldsmobile Cutlass, Tube - Tee to Gear, for vehicles with air conditioning
  • Fits 1986-1987 Oldsmobile Cutlass Supreme, Tube - Tee to Gear, for vehicles with air conditioning
  • Fits 1986-1987 Pontiac Firebird, Tube - Tee to Gear, for vehicles with air conditioning
  • Fits 1986-1987 Pontiac Grand Prix, Tube - Tee to Gear, for vehicles with air conditioning
  • Fits 1985-1986 Chevrolet C10, Tube - Tee to Gear
  • Fits 1985-1986 Chevrolet C20, Tube - Tee to Gear
  • Fits 1986 Chevrolet Camaro, Tube - Tee to Gear, w/o AC
  • Fits 1985-1986 Chevrolet K10, Tube - Tee to Gear
  • Fits 1985-1986 GMC C1500, Tube - Tee to Gear
  • Fits 1985-1986 GMC C2500, Tube - Tee to Gear
  • Fits 1985-1986 GMC K1500, Tube - Tee to Gear
  • Fits 1986 Pontiac Bonneville, Tube - Tee to Gear, for vehicles with air conditioning
  • Fits 1986 Pontiac Parisienne, Tube - Tee to Gear, for vehicles with air conditioning
  • Fits 1985 Chevrolet K20, Tube - Tee to Gear
  • Fits 1985 GMC K2500, Tube - Tee to Gear
This part fits 37 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1988ChevroletCapriceTube - Tee to GearFitment note: for vehicles with air conditioning
1988ChevroletMonte CarloTube - Tee to GearFitment note: for vehicles with air conditioning
1987BuickRegalTube - Tee to GearFitment note: for vehicles with air conditioning
1987ChevroletCamaroTube - Tee to GearFitment note: for vehicles with air conditioning
1987ChevroletCapriceTube - Tee to GearFitment note: for vehicles with air conditioning
1987ChevroletEl CaminoTube - Tee to GearFitment note: for vehicles with air conditioning
1987ChevroletMonte CarloTube - Tee to GearFitment note: for vehicles with air conditioning
1987OldsmobileCutlassTube - Tee to GearFitment note: for vehicles with air conditioning
1987OldsmobileCutlass SupremeTube - Tee to GearFitment note: for vehicles with air conditioning
1987PontiacFirebirdTube - Tee to GearFitment note: for vehicles with air conditioning
1987PontiacGrand PrixTube - Tee to GearFitment note: for vehicles with air conditioning
1986BuickRegalTube - Tee to GearFitment note: for vehicles with air conditioning
1986ChevroletC10Tube - Tee to Gear—
1986ChevroletC20Tube - Tee to Gear—
1986ChevroletCamaroTube - Tee to Gearw/o AC
1986ChevroletCapriceTube - Tee to GearFitment note: for vehicles with air conditioning
1986ChevroletEl CaminoTube - Tee to GearFitment note: for vehicles with air conditioning
1986ChevroletK10Tube - Tee to Gear—
1986ChevroletMonte CarloTube - Tee to GearFitment note: for vehicles with air conditioning
1986GMCC1500Tube - Tee to Gear—
1986GMCC2500Tube - Tee to Gear—
1986GMCK1500Tube - Tee to Gear—
1986OldsmobileCutlassTube - Tee to GearFitment note: for vehicles with air conditioning
1986OldsmobileCutlass SupremeTube - Tee to GearFitment note: for vehicles with air conditioning
1986PontiacBonnevilleTube - Tee to GearFitment note: for vehicles with air conditioning
1986PontiacFirebirdTube - Tee to GearFitment note: for vehicles with air conditioning
1986PontiacGrand PrixTube - Tee to GearFitment note: for vehicles with air conditioning
1986PontiacParisienneTube - Tee to GearFitment note: for vehicles with air conditioning
1985ChevroletC10Tube - Tee to Gear—
1985ChevroletC20Tube - Tee to Gear—
1985ChevroletCapriceTube - Tee to GearFitment note: for vehicles with air conditioning
1985ChevroletK10Tube - Tee to Gear—
1985ChevroletK20Tube - Tee to Gear—
1985GMCC1500Tube - Tee to Gear—
1985GMCC2500Tube - Tee to Gear—
1985GMCK1500Tube - Tee to Gear—
1985GMCK2500Tube - Tee to Gear—
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 39138Gates — 349860966783911914094347