HomeHVAC > Hoses and PipesFour Seasons 66649 A/C Discharge and Liquid Line
Part #: 66649

Four Seasons 66649 A/C Discharge and Liquid Line

Hose Assembly
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Chevrolet, Sonic
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Reliable A/C Discharge and Liquid Line for Chevrolet Sonic

The Four Seasons Hose Assembly 66649 is designed specifically for the Chevrolet Sonic to ensure efficient air conditioning system performance. This high-pressure A/C discharge and liquid line combines durable aluminum and rubber materials to withstand demanding conditions.

  • Constructed from aluminum and rubber for durability and flexibility
  • Compatible with R134a refrigerant systems
  • Includes slim line sealing washers and green O-ring for secure connections
  • Equipped with P-nut fittings on both discharge and suction ends
  • Features a switch service port with M10x1.25 size for system monitoring
  • Comes with manifold but without bracket or muffler
  • O.E. replacement part ensuring proper fit and function

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on providing complete hose solutions for HVAC systems in vehicles. This product line emphasizes quality materials and precise fitment to maintain system integrity and performance. The 66649 hose assembly is part of this line, offering a reliable replacement for the Chevrolet Sonic’s A/C discharge and liquid line needs.

Product Details and Specifications

This hose assembly is engineered for high-pressure A/C systems using R134a refrigerant. It features P-nut fittings on both the discharge and suction ends, ensuring secure and leak-resistant connections. The included slim line sealing washers ([24401] and [24402]) and green O-ring ([24606]) provide additional sealing reliability. The assembly includes a switch service port sized M10x1.25, allowing for system diagnostics and maintenance. While it comes with a manifold, it does not include a bracket or muffler, aligning with original equipment specifications.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C discharge and liquid lines in Chevrolet Sonic vehicles
  • Resolving refrigerant leaks caused by degraded seals or fittings
  • Restoring proper system pressure and refrigerant flow in high-pressure A/C circuits
  • Addressing issues related to faulty or missing switch service ports
  • Ensuring compatibility with R134a refrigerant systems for optimal cooling performance

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66649, ensure all O-rings and sealing washers are properly seated to prevent leaks. The P-nut fittings require careful tightening to manufacturer torque specifications. Verify the switch service port is accessible for future maintenance. Since this assembly does not include a bracket, use the existing mounting points on the Chevrolet Sonic. Always evacuate and recharge the A/C system following installation to maintain system integrity.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an O.E. replacement part, meeting original equipment standards for fit and function. The materials and components are selected to withstand high-pressure A/C system demands. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in materials and workmanship.

BrandFour Seasons
Part Number66649
PositionHose Assembly
MaterialAluminum / rubber
Refrigerant TypeR134a
System PressureHigh pressure
Gasket Or Seal IncludedIncluded
Switch Service PortW/ switch port
Fittings IncludedIncluded
Bracket?W/o bracket
DescriptionHose assemblies
Discharge End TypeP-nut fitting
Manifold?W/ manifold
Muffler?W/o muffler
O-Ring A Number/Desc[24401] / slim line sealing washer
O-Ring A Quantity2
O-Ring B Number/Desc[24402] / slimline washer
O-Ring B Quantity2
O-Ring C Number/Desc[24606] / green o-ring
O-Ring C Quantity1
O.E. Replacement?Yes
Service Port?W/o service port
StyleHose assy /discharge, liquid
Suction End TypeP-nut fitting
Switch Port Quantity1
Switch Port SizeM10x1.25
TypeDischarge & liquid line

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2020ChevroletSonicN/AHose Assembly
2019ChevroletSonicN/AHose Assembly
2018ChevroletSonic1.4LL4N/AHose Assembly
2017ChevroletSonic1.4LL4GASN/AHose Assembly
2016ChevroletSonic1.4LL4N/AHose Assembly
2015ChevroletSonic1.4LL4N/AHose Assembly
2014ChevroletSonic1.4LL4N/AHose Assembly
2013ChevroletSonic1.4LL4N/AHose 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:

153477222156042362780425883916664970321479703995081738A83167HA111975C

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