HomeHVAC > Hoses and PipesFour Seasons 66390 A/C Refrigerant Suction Hose
Part #: 66390

Four Seasons 66390 A/C Refrigerant Suction Hose

Hose Assembly
3 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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OE Direct Replacement — Bolt-on fit, no modifications needed
Hose Assembly
Fitment: Ford, F-150 and Lobo
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Four Seasons Hose Assembly 66390

The Four Seasons Hose Assembly 66390 is designed specifically for Ford F-150 models, providing a reliable A/C refrigerant suction hose solution. Constructed with durable aluminum and rubber materials, this hose assembly ensures efficient refrigerant flow and system performance.

  • Compatible with Ford F-150 A/C systems using R134a refrigerant
  • Constructed from aluminum and rubber for durability and flexibility
  • Features P-nut fittings on both ends for secure connections
  • Includes gasket, fittings, and O-rings for proper sealing
  • Equipped with a muffler to reduce noise and vibration
  • Designed as a low-pressure suction line with a 13 mm service port
  • OE replacement part ensuring proper fit and function

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line by Four Seasons focuses on delivering complete hose solutions for HVAC systems in vehicles. This line includes assemblies that combine multiple components such as fittings, gaskets, and mufflers to provide a ready-to-install part. The 66390 hose assembly is part of this line, offering a comprehensive replacement that meets original equipment specifications for Ford F-150 models.

Detailed Product Description

This A/C refrigerant suction hose assembly is engineered to handle low-pressure refrigerant flow within the HVAC system of Ford F-150 trucks. The combination of aluminum and rubber materials provides both strength and flexibility, accommodating engine vibrations and thermal expansion. Both ends feature P-nut fittings, ensuring a secure and leak-free connection. The included gasket and multiple O-rings (tear drop sealing washer and black O-rings) enhance sealing integrity. Additionally, the integrated muffler helps minimize noise during operation. The hose assembly supports R134a refrigerant and includes a 13 mm service port on the low-pressure side for maintenance access.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant suction hoses on Ford F-150
  • Resolving refrigerant leaks caused by cracked or deteriorated hoses
  • Eliminating A/C system noise through the integrated muffler
  • Restoring proper refrigerant flow and pressure in the suction line
  • Ensuring secure connections with included fittings and seals

Installation Notes and Tips

  • Verify compatibility with your specific Ford F-150 model year before installation
  • Ensure all O-rings and gaskets are properly seated to prevent leaks
  • Use appropriate tools to tighten P-nut fittings without over-torquing
  • Inspect the service port for accessibility during A/C system servicing
  • Check for any signs of wear or damage on adjacent components during replacement

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66390 is an OE replacement part designed to meet original equipment standards for fit and function. It includes all necessary seals and fittings to ensure a reliable installation. While specific warranty details are not provided here, Four Seasons products typically come with manufacturer-backed quality assurance to support durability and performance in automotive HVAC applications.

BrandFour Seasons
Part Number66390
PositionHose Assembly
Bracket?w/o Bracket
Component TypeSuction Line
DescriptionHose Assemblies
End 1 TypeP-Nut Fitting
End 2 TypeP-Nut Fitting
Fittings IncludedIncluded
Friction Material Attachmentw/o Switch Port
Gasket Or Seal IncludedIncluded
MaterialAluminum / Rubber
Muffler?w/ Muffler
O-Ring A Number/Desc[24243] / Tear Drop Sealing Washer
O-Ring B Number/Desc[24150] / Black O-Ring
O.E. Replacement?Yes
Refrigerant TypeR134a
Service Port Qty1
Service Port Size13 mm
Service Port?w/ Service Port
Suction End TypeP-Nut Fitting
Sve Port Low SideLow Side
Switch Included?Not Included
System PressureLow Pressure

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2017FordF-1505.0LV8N/ASuction Line with R134a; Hose Assembly
2016FordF-1505.0LV8N/ASuction Line with R134a; Hose Assembly
2015FordF-1505.0LV8N/ASuction Line with R134a; Hose Assembly

* 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:

21130166390785794A82903FL3Z19867FFL3Z19867JHA11609CYF37408

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