Home› Steering > Power Steering Hoses, Pumps, and Related Components› Sunsong 3401770 Power Steering Return Line Hose Assembly - Control Valve To Cooler, From Gear or Gear To Cooler
Sunsong 3401770 Power Steering Return Line Hose Assembly - Control Valve To Cooler, From Gear or Gear To CoolerOE Quality 60-Day Returns
Sunsong 3401770 Power Steering Return Line Hose Assembly - Control Valve To Cooler, From Gear or Gear To Cooler - view 1
Sunsong 3401770 Power Steering Return Line Hose Assembly - Control Valve To Cooler, From Gear or Gear To Cooler - view 2
Sunsong 3401770 Power Steering Return Line Hose Assembly - Control Valve To Cooler, From Gear or Gear To Cooler - view 3
Sunsong 3401770 Power Steering Return Line Hose Assembly - Control Valve To Cooler, From Gear or Gear To Cooler - view 4
Part #: 3401770

Sunsong 3401770 Power Steering Return Line Hose Assembly - Control Valve To Cooler, From Gear or Gear To Cooler

From Gear, Control Valve To Cooler, and Gear To Cooler
⚙️ 82 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: Ford, Lincoln, and Mercury, Colony Park, Continental, Cougar, Grand Marquis, LTD, Marquis, Monarch, Montego, and Thunderbird
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Not what you need? Click here for all Power Steering Return Line Hose Assembly options

Reliable Power Steering Return Line Hose Assembly

The Sunsong 3401770 power steering return line hose assembly is designed to provide a durable and precise fit for select Ford, Lincoln, and Mercury vehicles. Engineered with quality materials, this hose assembly ensures efficient fluid return and helps maintain optimal steering performance.

  • Compatible with Ford, Lincoln, and Mercury models including Colony Park, Continental, Cougar, Grand Marquis, LTD, Marquis, Monarch, Montego, and Thunderbird
  • Length of 48 inches (1219 mm) for proper routing and fitment
  • Constructed with CSM hose material for durability and resistance to heat and pressure
  • End 1 features a 3/8 inch ID hose fitting
  • End 2 includes a 5/8 inch male inverted flare fitting
  • No bracket or power steering switch port included

Product Details and Specifications

The Sunsong 3401770 power steering return line hose assembly is built with a CSM (chlorosulfonated polyethylene) hose material, known for its resistance to heat, ozone, and hydraulic fluids. Measuring 48 inches in length, this hose assembly is designed to meet the exact specifications required for proper installation and function in the specified Ford, Lincoln, and Mercury vehicles. The hose features a 3/8 inch ID hose fitting on one end and a 5/8 inch male inverted flare fitting on the other, ensuring secure connections within the power steering system. This assembly does not include a bracket or power steering switch port, focusing solely on the return line function.

Compatible Vehicles and Applications

  • Ford Colony Park
  • Lincoln Continental
  • Mercury Cougar
  • Ford Grand Marquis
  • Lincoln LTD
  • Mercury Marquis
  • Mercury Monarch
  • Mercury Montego
  • Ford Thunderbird

Common Issues Addressed by This Hose Assembly

  • Leaking or cracked power steering return lines causing fluid loss
  • Reduced steering responsiveness due to damaged or worn hoses
  • Power steering fluid contamination from deteriorated hose material
  • Improper hose length or fitting size leading to installation difficulties
  • Preventing overheating and pressure loss in the power steering system

Installation Notes and Tips

Ensure the vehicle is cooled and the power steering system is depressurized before beginning installation. Verify the hose length and fitting sizes match the original equipment specifications. Use appropriate tools to avoid damaging the male inverted flare fitting during installation. Inspect surrounding components for wear or damage while replacing the hose assembly. 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 3401770 hose assembly undergoes rigorous quality control to ensure reliable operation within the specified vehicle applications. While specific warranty details are not provided, Sunsong products typically come with a limited warranty against defects in material and workmanship.

BrandSunsong
Part Number3401770
Bracket (Y/N)N
End 1 Fitting Size (in)3/8
End 1 Fitting TypeId hose
End 2 Fitting Size (in)5/8
End 2 Fitting TypeMale inverted flare
Hose Material 1Csm
Length (in)48
Length (mm)1219
PS Switch Port (Y/N)N
Tech TipTt1000

This part fits 82 vehicles. Search below:

YearMakeModelPositionNotes
1979FordThunderbirdGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1979LincolnContinentalGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1979MercuryCougarGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1978FordLTDGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1978FordLTDFrom GearFitment note: With cooler, cut-to-fit.
1978FordThunderbirdGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1978LincolnContinentalGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1978MercuryCougarGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1978MercuryGrand MarquisN/APower Steering Return Line Hose Assembly, Cut To Fit, without Cooler
1978MercuryGrand MarquisGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1978MercuryMarquisGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1977FordLTDGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1977FordLTDFrom GearPolice, w/ Cooler; Cut To Fit
1977FordLTDN/APolice
1977FordLTDN/AExc. Police, w/ Ford PS Pump
1977FordLTDN/APower Steering Return Line Hose Assembly with Adjustable Length Option
1977FordThunderbirdGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1977LincolnContinentalGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1977MercuryCougarGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1977MercuryGrand MarquisN/APower Steering Return Line Hose Assembly, Cut To Fit, without Cooler
1977MercuryGrand MarquisGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1977MercuryGrand MarquisN/APolice, w/o Adaptor Fitting At Pump; Cut To Fit
1977MercuryGrand MarquisN/AExc. Police
1977MercuryGrand MarquisN/APolice, w/o Adaptor Fitting At Pump
1977MercuryGrand MarquisN/AExc. Police, w/ Ford PS Pump
1977MercuryGrand MarquisN/APower Steering Return Line Hose Assembly with Adjustable Length Option
1977MercuryMarquisN/APolice, w/o Adaptor Fitting At Pump; Cut To Fit
1977MercuryMarquisN/AExc. Police; Cut To Fit
1977MercuryMarquisN/APolice, w/o Adaptor Fitting At Pump
1977MercuryMarquisN/AExc. Police, w/ Ford PS Pump
1976FordLTDFrom GearFitment note: With cooler, cut-to-fit.
1976FordThunderbirdGear To CoolerFitment note: With cooler, cut-to-fit.
1976LincolnContinentalGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1976MercuryCougarFrom GearFitment note: With cooler, cut-to-fit.
1976MercuryGrand MarquisGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1976MercuryGrand MarquisFrom GearFitment note: With cooler, cut-to-fit.
1976MercuryMarquisGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1976MercuryMarquisFrom GearFitment note: With cooler, cut-to-fit.
1976MercuryMonarchControl Valve To Coolerw/ O-Ring Fitting; Cut To Fit
1976MercuryMontegoFrom GearFitment note: With cooler, cut-to-fit.
1975FordLTDN/APower Steering Return Line Hose Assembly with Adjustable Length Option
1975FordLTDFrom GearFitment note: With cooler, cut-to-fit.
1975FordThunderbirdGear To CoolerFitment note: With cooler, cut-to-fit.
1975LincolnContinentalGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1975MercuryCougarFrom GearFitment note: With cooler, cut-to-fit.
1975MercuryGrand MarquisN/APower Steering Return Line Hose Assembly with Adjustable Length Option
1975MercuryGrand MarquisGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1975MercuryGrand MarquisFrom GearPower Steering Return Line Hose Assembly with Adjustable Length Option
1975MercuryMarquisN/APower Steering Return Line Hose Assembly with Adjustable Length Option
1975MercuryMarquisGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1975MercuryMarquisFrom GearPower Steering Return Line Hose Assembly with Adjustable Length Option
1975MercuryMonarchControl Valve To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1975MercuryMontegoFrom GearFitment note: With cooler, cut-to-fit.
1974FordLTDFrom GearFitment note: With cooler, cut-to-fit.
1974FordThunderbirdFrom GearFitment note: With cooler, cut-to-fit.
1974LincolnContinentalGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1974MercuryColony ParkN/APower Steering Return Line Hose Assembly with Adjustable Length Option
1974MercuryColony ParkFrom GearFitment note: With cooler, cut-to-fit.
1974MercuryColony ParkFrom GearPower Steering Return Line Hose Assembly - With Cooler
1974MercuryCougarFrom GearFitment note: With cooler, cut-to-fit.
1974MercuryMarquisN/Aw/ Ford Power Steering Pump, w/ Saginaw Power Steering Pump
1974MercuryMarquisN/APower Steering Return Line Hose Assembly with Adjustable Length Option
1974MercuryMarquisFrom GearFitment note: With cooler, cut-to-fit.
1974MercuryMontegoN/APower Steering Return Line Hose Assembly with Adjustable Length Option
1974MercuryMontegoFrom GearFitment note: With cooler, cut-to-fit.
1973FordLTDFrom GearFitment note: With cooler, cut-to-fit.
1973FordThunderbirdFrom GearFitment note: With cooler, cut-to-fit.
1973LincolnContinentalGear To CoolerPower Steering Return Line Hose Assembly with Adjustable Length Option
1973MercuryColony ParkN/APower Steering Return Line Hose Assembly with Adjustable Length Option
1973MercuryColony ParkFrom GearFitment note: With cooler, cut-to-fit.
1973MercuryColony ParkFrom GearPower Steering Return Line Hose Assembly - With Cooler
1973MercuryMarquisN/Aw/ Ford Power Steering Pump, w/ Saginaw Power Steering Pump
1973MercuryMarquisN/APower Steering Return Line Hose Assembly with Adjustable Length Option
1973MercuryMarquisFrom GearFitment note: With cooler, cut-to-fit.
1973MercuryMontegoN/APower Steering Return Line Hose Assembly with Adjustable Length Option
1973MercuryMontegoFrom GearFitment note: With cooler, cut-to-fit.
1972FordLTDFrom GearFitment note: With cooler, cut-to-fit.
1972FordThunderbirdFrom GearFitment note: With cooler, cut-to-fit.
1972LincolnContinentalFrom GearTo 5/14; Cut To Fit
1972MercuryColony ParkFrom GearFitment note: With cooler, cut-to-fit.
1972MercuryMarquisFrom GearFitment note: With cooler, cut-to-fit.
1972MercuryMontegoN/APower Steering Return Line Hose Assembly with Adjustable Length Option

* 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:

36-36272036272045380031979-3177D2AZ3A713BD2OA3A713EAD2OZ3A713AD2SA3A713HAD2SZ3A713CD2VA3A713BBD2VY3A713AD2VY3A713BD2VY3A713DD3OA3A713AAD3OA3A713BAD3OZ3A713AD3OZ3A713AAD3OZ3A713BD3SA3A713AAD3SZ3A713AD4OW3A713AAD4OZ3A713AD4VW3A713AAD4VW3A713ABD4VW3A713ACD4VY3A713AD5AW3A713BAD5AZ3A713AD5DW3A713BCD6AW3A713BAD6AW3A713CAD6AW3A713DAD6AW3A713EAD6AW3A713FAD6AW3F595BAD6AZ3A713BD6AZ3A713CD6AZ3A713DD6BW3A713AAD6BW3A713ABD6MW3F595CAD6MY3A713AD6MY3A713BD6OW3A713CAD6OW3A713DAD6OW3A713EAD6OW3A713FAD6OW3A713GAD6OZ3A713CD6OZ3A713DD6SW3F595DAD6SZ3A713BD7AA3A713BAD7AA3A713CAD7AA3A713DAD7AC3A713AAD7AC3A713BAD7LA3F595AAD7LC3A713AAD7LY3A713AD7OA3A713AAD7OC3A713AAD7OC3A713BAD7OC3A713CAD7OC3A713EAD7OZ3A713AD7SA3F595AAD8AC3A563AAD8AC3A563BAD8AZ3A713AD8LY3A713AD8OC3A563DAEDD6OW3A713DA

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

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