HomeHVAC > Hoses and PipesFour Seasons 66772 A/C Refrigerant Discharge Hose
Part #: 66772

Four Seasons 66772 A/C Refrigerant Discharge Hose

Hose Assembly
⚙️ 7 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Audi, A4 Quattro and A4
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Overview of Four Seasons Hose Assembly 66772

The Four Seasons Hose Assembly 66772 is designed specifically for Audi A4 and A4 Quattro models, providing a reliable A/C refrigerant discharge hose solution. Constructed with durable aluminum and rubber materials, this hose assembly ensures efficient refrigerant flow and system integrity.

  • Compatible with Audi A4 and A4 Quattro models
  • Constructed from aluminum and rubber for durability
  • Designed for R134-a refrigerant systems
  • Includes gasket and fittings for secure installation
  • OE replacement part ensuring proper fit and function
  • Features P-nut fitting on suction end
  • Includes black and green O-rings for sealing

Detailed Product Description

This A/C refrigerant discharge hose from Four Seasons is part of the Hose Assembly product line, which focuses on delivering complete hose solutions for automotive HVAC systems. The 66772 hose assembly is engineered to replace original equipment parts, maintaining the performance and reliability expected in Audi A4 and A4 Quattro vehicles. It is constructed with a combination of aluminum and rubber materials to withstand the pressures and temperatures typical in air conditioning systems using R134-a refrigerant.

The assembly includes essential components such as fittings and gaskets, along with one black O-ring (part number 24150) and one green O-ring (part number 24661) to ensure a tight, leak-free connection. This hose assembly does not include a service port, switch, bracket, or muffler, focusing solely on the discharge line function with a P-nut fitting on the suction end for secure attachment.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant discharge hoses in Audi A4 and A4 Quattro
  • Resolving refrigerant leaks caused by cracked or deteriorated hoses
  • Restoring proper refrigerant flow for efficient air conditioning performance
  • Eliminating system contamination from compromised hose assemblies
  • Ensuring compatibility with R134-a refrigerant systems

Installation Notes and Tips

  • Verify compatibility with your specific Audi A4 or A4 Quattro 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 surrounding components for wear or damage during replacement
  • Follow manufacturer guidelines for refrigerant handling and system evacuation

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66772 is an OE replacement part, designed to meet or exceed original equipment specifications for fit, form, and function. It undergoes rigorous quality control to ensure durability and reliability in automotive HVAC applications. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandFour Seasons
Part Number66772
PositionHose Assembly
Bracket?w/o Bracket
Component TypeDischarge Line
DescriptionHose Assemblies
Fittings IncludedIncluded
Friction Material Attachmentw/o Switch Port
Gasket Or Seal IncludedIncluded
MaterialAluminum / Rubber
Muffler?w/o Muffler
O-Ring A Number/Desc[24150] / Black O-Ring
O-Ring B Number/Desc[24661] / Green O-Ring
O.E. Replacement?Yes
Refrigerant TypeR134-A
Service Port?w/o Service Port
Suction End TypeP-Nut Fitting
Switch Included?Not Included

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006AudiA4 Quattro3.0LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2005AudiA43.0LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2005AudiA4 Quattro3.0LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2004AudiA43.0LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2004AudiA4 Quattro3.0LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2003AudiA43.0LV6N/ADischarge Line; From Chassis/VIN 8E-3-285 001; Hose Assembly
2003AudiA4 Quattro3.0LV6N/ADischarge Line; From Chassis/VIN 8E-3-285 001; 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:

21168348122796677271111647879298011018E0260701BEA83416HA11164CV15200078

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