HomeHVAC > Hoses and PipesFour Seasons 66770 A/C Refrigerant Discharge Hose
Part #: 66770

Four Seasons 66770 A/C Refrigerant Discharge Hose

Hose Assembly
⚙️ 3 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Audi, A6 Quattro
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Overview of Four Seasons Hose Assembly 66770

The Four Seasons Hose Assembly 66770 is designed specifically for the Audi A6 Quattro, 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 for vehicles using R134a refrigerant.

  • Compatible with Audi A6 Quattro models
  • Constructed from aluminum and rubber for durability
  • Designed for R134a refrigerant systems
  • Includes necessary fittings and green O-rings for proper sealing
  • OE replacement discharge line without switch or muffler

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly product line focuses on delivering precise HVAC hose and pipe components tailored to specific vehicle applications. This line includes hose assemblies engineered to meet original equipment specifications, ensuring proper fit and function. The 66770 discharge hose assembly is part of this line, offering a direct OE replacement for the Audi A6 Quattro’s air conditioning system without additional brackets or service ports.

Detailed Product Description

This A/C refrigerant discharge hose assembly (part number 66770) is constructed from a combination of aluminum and rubber materials, providing a balance of flexibility and strength. It is designed for use with R134a refrigerant and includes all necessary fittings and green O-rings (part numbers 24608 and 24610) to ensure a secure, leak-free connection. The hose features a P-nut fitting on the suction end and does not include a switch, muffler, bracket, or service port, aligning with the original equipment design for the Audi A6 Quattro.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant discharge hoses
  • Resolving refrigerant leaks in the discharge line
  • Restoring proper refrigerant flow for efficient air conditioning
  • Eliminating rattling or noise caused by failing hose components
  • Maintaining system integrity without the need for additional brackets or ports

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66770, ensure the vehicle is compatible with R134a refrigerant systems, specifically the Audi A6 Quattro. Use the included green O-rings to achieve a proper seal and prevent leaks. Since this hose assembly does not include a bracket or service port, verify existing mounting points and service connections before installation. Proper torque on fittings is essential to avoid damage or leaks.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an OE replacement part, meeting original equipment standards for fit and function. The inclusion of all necessary fittings and seals supports reliable performance. 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 Number66770
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[24608] / Green O-Ring
O-Ring B Number/Desc[24610] / Green O-Ring
O.E. Replacement?Yes
Refrigerant TypeR134a
Service Port?w/o Service Port
Suction End TypeP-Nut Fitting
Switch Included?Not Included

This part fits 3 vehicles. Search below:

YearMakeModelDrive TypeLitersCylindersPositionNotes
2004AudiA6 QuattroAWD2.7LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2003AudiA6 QuattroAWD2.7LV6N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2002AudiA6 QuattroAWD2.7LV6N/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:

2116814B0260701Q6677071111851787943800890A83410HA111851C

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