HomeHVAC > Hoses and PipesFour Seasons 66819 A/C Suction and Liquid Line Hose Assembly
Part #: 66819

Four Seasons 66819 A/C Suction and Liquid Line Hose Assembly

Hose Assembly
7 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Hose Assembly
Fitment: Ford, Explorer
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Ford Explorer A/C Hose Assembly

Restore refrigerant flow in the HVAC system with this Four Seasons hose assembly, part number 66819. It is built as an A/C suction and liquid line hose assembly for select Ford Explorer applications, with aluminum and rubber construction and R134A refrigerant compatibility.

Four Seasons hose assemblies are engineered and tested for dependable operation, drawing on more than 50 years of mobile A/C experience. This Four Seasons 66819 replacement is built for direct service on the listed Ford Explorer fitments.

  • Aluminum / rubber construction for A/C line service
  • Designed as a suction and liquid line hose assembly
  • R134A refrigerant type
  • P-nut fitting on one end and male P-nut on the other
  • Service port included
  • Gasket or seal included
  • Fittings included
  • OE-style replacement for listed Ford Explorer applications

Product Details

This hose assembly is configured for HVAC service where both suction and liquid line routing is required. It includes the specified sealing components and service port, and it is supplied without a bracket and without a muffler. The part number 66819 is also cross-referenced in the aftermarket for the same application, including UAC HA113994C.

Compatible With: Fits 2014-2019 Ford Explorer, N/A. Fits 2013 Ford Explorer, N/A, from 9/4/2012. Use this Four Seasons 66819 hose assembly when replacing a worn or leaking A/C line on the Ford Explorer.

Common Repair Issues

  • A/C refrigerant loss from a cracked or leaking hose
  • Damaged fittings or worn sealing surfaces at the line connections
  • Reduced cooling performance caused by restricted or compromised hose flow
  • Service port leakage during HVAC diagnosis or recharge work
  • Failure of the original suction or liquid line assembly on the Ford Explorer

Installation Notes

Verify the vehicle’s refrigerant system uses R134A before installation. Match the end styles, service port location, and routing to the original hose assembly on the vehicle. Replace the sealing washers and O-rings as required during service, and evacuate and recharge the system according to factory procedures after installation.

Quality Assurance

Four Seasons states that its HVAC products are engineered and tested for long service life, supported by decades of mobile A/C experience. Part number 66819 is built as a direct-fit hose assembly for the listed Ford Explorer applications.

BrandFour Seasons
Part Number66819
PositionHose Assembly
MaterialAluminum / rubber
End 1 TypeP-nut fitting
End 2 TypeMale p-nut
Refrigerant TypeR134a
Gasket Or Seal IncludedIncluded
Switch Service PortNo
Fittings IncludedIncluded
Bracket?W/o bracket
DescriptionHose assemblies
Muffler?W/o muffler
O-Ring A Number/Desc24404 / slim line sealing washer
O-Ring A Quantity1
O-Ring B Number/Desc24401 / slim line sealing washer
O-Ring B Quantity1
O-Ring C Number/Desc24069 / o-ring and sealing washer kit
O-Ring C Quantity1
Service Port IncludedYes
StyleHose assy /suction, liquid
Suction End StyleP-nut fitting
TypeSuction & liquid line

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2019FordExplorer3.5LV6N/AHose Assembly
2018FordExplorer3.5LV6N/AHose Assembly
2017FordExplorer3.5LV6N/AHose Assembly
2016FordExplorer3.5LV6N/AHose Assembly
2015FordExplorer3.5LV6N/AHose Assembly
2014FordExplorer3.5LV6N/AHose Assembly
2013FordExplorer3.5LV6N/AFrom 9/4/2012; 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:

21173066819DB5Z19A834DEB5Z19A834BHA113994CYF37197YF37987

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