HomeHVAC > Hoses and PipesFour Seasons 65818 A/C Refrigerant Liquid Hose
Part #: 65818

Four Seasons 65818 A/C Refrigerant Liquid Hose

Hose Assembly
⚙️ 19 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Buick, Chevrolet, GMC, and Saturn, Acadia, Enclave, Outlook, and Traverse
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Reliable A/C Refrigerant Liquid Hose for Buick, Chevrolet, GMC, and Saturn

The Four Seasons Hose Assembly 65818 is designed to maintain efficient air conditioning performance in select Buick, Chevrolet, GMC, and Saturn models. Engineered with durable aluminum and rubber materials, this liquid line hose assembly supports R134a refrigerant systems and includes essential components for proper function.

  • Constructed from aluminum and rubber for durability and flexibility
  • Compatible with R134a refrigerant systems
  • Includes gasket, fittings, service port, and switch port
  • Features a flange type connection on one end
  • Designed without a bracket and orifice tube
  • Fits Buick Enclave, Chevrolet Traverse, GMC Acadia, and Saturn Outlook

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line offers a range of hose assemblies tailored for HVAC systems in various vehicles. This product line focuses on delivering reliable liquid line hose assemblies that meet OEM specifications, ensuring proper refrigerant flow and system integrity. The 65818 model is part of this line, providing a direct replacement solution for specific GM SUVs and crossovers.

Product Details and Specifications

The Four Seasons 65818 A/C refrigerant liquid hose is constructed with a combination of aluminum and rubber materials, providing a balance of strength and flexibility necessary for HVAC applications. It features a flange connection on one end for secure attachment and is designed to work with R134a refrigerant. This hose assembly includes a gasket and fittings to ensure a sealed connection, along with a service port and switch port for system maintenance and monitoring. Notably, this assembly does not include a bracket or orifice tube, aligning with the original equipment design for the compatible vehicles.

Common Applications and Issues Addressed

  • Replacement of worn or leaking A/C liquid line hoses in Buick Enclave, Chevrolet Traverse, GMC Acadia, and Saturn Outlook
  • Restores proper refrigerant flow in R134a systems
  • Eliminates refrigerant leaks caused by damaged or cracked hoses
  • Supports system pressure maintenance through included service and switch ports
  • Prevents contamination and loss of refrigerant with included gasket and fittings

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 65818, ensure the flange connection is properly seated and the included gasket is positioned to prevent leaks. Verify compatibility with the vehicle’s refrigerant type (R134a) before installation. The absence of a bracket means the hose should be secured according to the vehicle’s original mounting points. Use the service and switch ports for system diagnostics and refrigerant charging as needed.

Quality Assurance and Warranty

Four Seasons products are manufactured to meet or exceed OEM standards for HVAC components. The Hose Assembly 65818 undergoes quality checks to ensure durability and performance in demanding automotive environments. Warranty information is provided by Four Seasons and typically covers defects in materials and workmanship under normal use.

BrandFour Seasons
Part Number65818
PositionHose Assembly
MaterialAluminum / rubber
End 1 TypeFlange
Refrigerant TypeR134a
Gasket Or Seal IncludedIncluded
Fittings IncludedIncluded
Bracket?W/o bracket
DescriptionHose assemblies
Orifice Tube?W/ orifice tube
Service Port IncludedYes
StyleLiquid line hose assembly w/o orifice tube
Switch Port IncludedYes
TypeLiquid line

This part fits 19 vehicles. Search below:

YearMakeModelPositionNotes
2012BuickEnclaveN/Aw/o Orifice Tube; Hose Assembly
2012ChevroletTraverseN/Aw/o Orifice Tube; Hose Assembly
2012GMCAcadiaN/Aw/o Orifice Tube; Hose Assembly
2011BuickEnclaveN/Aw/o Orifice Tube; Hose Assembly
2011ChevroletTraverseN/Aw/o Orifice Tube; Hose Assembly
2011GMCAcadiaN/Aw/o Orifice Tube; Hose Assembly
2010BuickEnclaveN/Aw/o Orifice Tube; Hose Assembly
2010ChevroletTraverseN/Aw/o Orifice Tube; Hose Assembly
2010GMCAcadiaN/Aw/o Orifice Tube; Hose Assembly
2010SaturnOutlookN/Aw/o Orifice Tube; Hose Assembly
2009BuickEnclaveN/Aw/o Orifice Tube; Hose Assembly
2009ChevroletTraverseN/Aw/o Orifice Tube; Hose Assembly
2009GMCAcadiaN/Aw/o Orifice Tube; Hose Assembly
2009SaturnOutlookN/Aw/o Orifice Tube; Hose Assembly
2008BuickEnclaveN/Aw/o Orifice Tube; Hose Assembly
2008GMCAcadiaN/Aw/o Orifice Tube; Hose Assembly
2008SaturnOutlookN/Aw/o Orifice Tube; Hose Assembly
2007GMCAcadiaN/Aw/o Orifice Tube; Hose Assembly
2007SaturnOutlookN/Aw/o Orifice Tube; 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:

10353015153371820821215212225227748182279248922875372481294765818A83994

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