HomeHVAC > Hoses and PipesFour Seasons 66300 A/C Refrigerant Suction Hose
Part #: 66300

Four Seasons 66300 A/C Refrigerant Suction Hose

Hose Assembly
9 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Hose Assembly
Fitment: Audi, A6 and A6 Quattro
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Overview of Four Seasons Hose Assembly 66300

The Four Seasons Hose Assembly 66300 is designed specifically for Audi A6 and A6 Quattro models, providing a reliable A/C refrigerant suction hose solution. Engineered with durable aluminum and rubber materials, this hose assembly ensures efficient low-pressure refrigerant flow for R134-a systems.

  • Constructed from aluminum and rubber for durability and flexibility
  • Equipped with P-nut fittings on both ends for secure connections
  • Compatible with R134-a refrigerant systems
  • Includes green O-rings ([24684] and [24635]) for proper sealing
  • Designed as a low-pressure suction line without a switch or muffler
  • Includes necessary fittings and gasket for installation
  • OE replacement part ensuring proper fit and function

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly product line focuses on delivering precise HVAC hose and pipe components tailored for specific vehicle applications. This line emphasizes quality materials and exact fitment, such as the 66300 suction hose assembly designed for Audi A6 and A6 Quattro models. Each hose assembly in this line is engineered to meet OEM specifications, ensuring compatibility and reliable performance within the vehicle's air conditioning system.

Detailed Product Description

The Four Seasons 66300 A/C refrigerant suction hose is a critical component in the HVAC system of Audi A6 and A6 Quattro vehicles. It serves as the low-pressure suction line, facilitating the flow of R134-a refrigerant back to the compressor. Both ends feature P-nut fittings, providing secure and leak-resistant connections. The hose assembly includes green O-rings ([24684] and [24635]) to maintain a tight seal and prevent refrigerant loss. This part comes without a switch service port, muffler, or bracket, focusing on essential functionality. The included fittings and gasket simplify installation and ensure a proper fit. As an OE replacement, it meets factory standards for durability and performance.

Common Issues Addressed by This Hose Assembly

  • Refrigerant leaks due to worn or damaged suction hoses
  • Reduced A/C system efficiency from compromised low-pressure lines
  • Failure of P-nut fittings causing loss of refrigerant pressure
  • O-ring degradation leading to refrigerant seepage
  • Incompatibility or improper fit of aftermarket hoses in Audi A6 and A6 Quattro models

Installation Notes and Tips

  • Ensure the vehicle is compatible: Audi A6 and A6 Quattro models only
  • Verify that the refrigerant type is R134-a before installation
  • Replace O-rings with the included green O-rings to maintain proper sealing
  • Use appropriate tools to tighten P-nut fittings without over-torquing
  • Inspect the hose assembly for any damage before installation

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66300 is manufactured to meet OEM specifications, ensuring reliable performance and fitment for Audi A6 and A6 Quattro vehicles. This part is an exact OE replacement, providing confidence in durability and system compatibility. While specific warranty details are not provided, Four Seasons products typically adhere to industry standards for quality and reliability.

BrandFour Seasons
Part Number66300
PositionHose Assembly
Bracket?w/o Bracket
Component TypeSuction Line
DescriptionHose Assemblies
End 1 TypeP-Nut Fitting
End 2 TypeP-Nut Fitting
Fittings IncludedIncluded
Friction Material Attachmentw/o Switch Port
Gasket Or Seal IncludedIncluded
MaterialAluminum / Rubber
Muffler?w/o Muffler
O-Ring A Number/Desc[24684] / Green O-Ring
O-Ring B Number/Desc[24635] / Green Round O-Ring
O.E. Replacement?Yes
Refrigerant TypeR134-A
Service Port Qty1
Service Port Size13 mm
Service Port?w/o Service Port
Suction End TypeP-Nut Fitting
Sve Port Low SideLow Side
Switch Included?Not Included
System PressureLow Pressure

This part fits 9 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2016AudiA62.0LL4N/ASuction Line; w/ R134a; To 3/16/15; Hose Assembly
2016AudiA6 Quattro2.0LL4N/ASuction Line; w/ R134a; To 3/16/15; Hose Assembly
2015AudiA6N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2015AudiA6 Quattro2.0LL4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2014AudiA6N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2014AudiA6 Quattro2.0LL4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2013AudiA62.0LL4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2013AudiA6 Quattro2.0LL4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012AudiA6N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; 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:

2111974G0260707CF4G0260707L66300785854A82799HA112592C

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