HomeHVAC > Hoses and PipesFour Seasons 66549 A/C Refrigerant Discharge Hose
Part #: 66549

Four Seasons 66549 A/C Refrigerant Discharge Hose

Hose Assembly
⚙️ 25 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Ford and Lincoln, Flex, MKS, MKT, and Taurus
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Reliable A/C Refrigerant Discharge Hose for Ford and Lincoln Vehicles

The Four Seasons Hose Assembly 66549 is designed to meet the high-pressure demands of your vehicle's air conditioning system. Engineered for compatibility with select Ford and Lincoln models, this A/C refrigerant discharge hose ensures efficient refrigerant flow and system integrity.

Key Features of Four Seasons Hose Assembly 66549

  • Constructed from durable aluminum and rubber materials for strength and flexibility
  • Compatible with R134a refrigerant systems
  • Includes gasket and fittings for secure connections
  • Equipped with a switch service port (M10x1.250) for diagnostic access
  • Designed as a high-pressure discharge line without muffler or bracket
  • O-rings included (one each of types A, B, and C) to ensure leak-free sealing
  • Original Equipment (O.E.) replacement part for reliable fit and function
  • Suction end features a P-nut fitting for proper installation

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on delivering precise HVAC hose and pipe solutions tailored to specific vehicle applications. This product line emphasizes quality materials and exact fitment to maintain the performance and safety of automotive air conditioning systems. The 66549 discharge hose is part of this line, providing a direct replacement that meets original equipment specifications for Ford Flex, Lincoln MKS, MKT, and Taurus models.

Detailed Product Description

This A/C refrigerant discharge hose is engineered to handle the high-pressure side of the air conditioning system, ensuring efficient refrigerant flow and system reliability. The combination of aluminum and rubber materials offers durability and flexibility, reducing the risk of leaks or damage under operating conditions. The inclusion of a switch service port allows for easy system diagnostics without removing the hose. With all necessary gaskets, fittings, and O-rings included, the Four Seasons 66549 hose assembly provides a comprehensive solution for maintaining your vehicle's HVAC system.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant discharge hoses
  • Resolving refrigerant leaks caused by cracked or deteriorated hoses
  • Restoring proper high-pressure refrigerant flow in Ford Flex and Lincoln MKS, MKT, Taurus models
  • Addressing system pressure loss due to faulty discharge lines
  • Facilitating A/C system diagnostics with integrated switch service port

Installation Notes and Tips

Ensure the vehicle is depressurized and the A/C system is properly evacuated before removing the old hose. Verify that all included O-rings and gaskets are correctly seated to prevent leaks. The P-nut fitting on the suction end requires proper torque to maintain a secure connection. Although the hose assembly does not include a bracket or muffler, confirm that existing mounting points are intact and secure the hose accordingly. Use the switch service port for system pressure checks during installation.

Quality Assurance and Warranty

Four Seasons Hose Assembly 66549 is manufactured to meet or exceed original equipment standards, ensuring reliable performance and fitment. This part is an O.E. replacement designed specifically for Ford and Lincoln vehicles, providing confidence in durability and compatibility. Warranty coverage details should be confirmed with the product documentation or manufacturer.

BrandFour Seasons
Part Number66549
PositionHose Assembly
MaterialAluminum / rubber
Refrigerant TypeR134a
Component TypeDischarge line
System PressureHigh pressure
Gasket Or Seal IncludedIncluded
Switch Service PortW/ switch port
Fittings IncludedIncluded
Bracket?W/o bracket
DescriptionHose assemblies
Muffler?W/o muffler
O-Ring A Quantity1
O-Ring B Quantity1
O-Ring C Quantity1
O.E. Replacement?Yes
Service Port?W/o service port
Suction End TypeP-nut fitting
Switch Included?Not included
Switch Port Quantity1
Switch Port SizeM10x1.250

This part fits 25 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2019FordFlex3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2019FordTaurus3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2019LincolnMKT3.7LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2018FordFlex3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2018FordTaurus3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2018LincolnMKT3.7LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2017FordFlex3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2017FordTaurus3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2017LincolnMKT3.7LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2016FordFlex3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2016FordTaurus3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2016LincolnMKS3.7LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2016LincolnMKT3.7LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2015FordFlex3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2015FordTaurus3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2015LincolnMKS3.7LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2015LincolnMKT3.7LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2014FordFlex3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2014FordTaurus3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2014LincolnMKS3.7LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2014LincolnMKT3.7LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2013FordFlex3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2013FordTaurus3.5LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2013LincolnMKS3.7LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2013LincolnMKT3.7LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; 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:

21146060755066549787787A83067DE9Z19972AEE9Z19972AHA111938CHG1Z19972CYF37422YF37661

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