HomeHVAC > Hoses and PipesFour Seasons 66786 A/C Refrigerant Suction Hose
Part #: 66786

Four Seasons 66786 A/C Refrigerant Suction Hose

Hose Assembly
⚙️ 11 vehicles fit this part
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Select your vehicle to confirm fitment
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Hyundai, Sonata
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Four Seasons Hose Assembly 66786

The Four Seasons Hose Assembly 66786 is designed specifically for Hyundai Sonata models requiring a reliable A/C refrigerant suction hose. Constructed with durable aluminum and rubber materials, this hose assembly ensures efficient refrigerant flow and system integrity for vehicles using R134a refrigerant.

  • Material: Aluminum and rubber construction for durability and flexibility
  • End Types: Flange connections on both ends for secure fitting
  • Refrigerant Compatibility: Designed for R134a refrigerant systems
  • Includes gasket and fittings for proper sealing and installation
  • Service port included on the low side for maintenance access
  • O-rings included (green o-rings part numbers 24109 and 24622) for leak prevention
  • OE replacement part ensuring compatibility and performance

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on delivering complete hose solutions for automotive HVAC systems. This product line includes assemblies that combine aluminum and rubber components to provide durability and resistance to refrigerant and pressure changes. The 66786 hose assembly is part of this line, offering a direct OE replacement for Hyundai Sonata vehicles, ensuring proper fit and function within the HVAC refrigerant suction system.

Detailed Product Description

The Four Seasons 66786 A/C refrigerant suction hose is engineered to maintain optimal refrigerant flow in Hyundai Sonata air conditioning systems. Featuring flange connections on both ends, it provides a secure and leak-resistant interface with the vehicle’s HVAC components. The hose assembly includes necessary fittings and green O-rings (part numbers 24109 and 24622) to ensure a tight seal and prevent refrigerant leaks. It is designed without a muffler or bracket and does not include a switch, but it does come with a service port on the low side, facilitating easy system servicing and refrigerant charging.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant suction hoses in Hyundai Sonata models
  • Resolving refrigerant leaks caused by cracked or deteriorated hose materials
  • Restoring proper refrigerant flow to improve air conditioning system performance
  • Addressing issues related to faulty or missing O-rings and seals
  • Facilitating maintenance with included service port for low side refrigerant access

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66786, ensure all fittings and included O-rings are properly seated to prevent leaks. The flange ends require secure tightening to manufacturer torque specifications. Since this assembly does not include a bracket or muffler, verify existing mounting points and hardware compatibility. The included service port allows for convenient refrigerant charging and pressure checks during installation or maintenance.

Quality Assurance and Warranty

This hose assembly is an OE replacement part, meeting original equipment standards for fit, form, and function on Hyundai Sonata vehicles. Four Seasons products are manufactured to strict quality controls to ensure durability and reliability in automotive HVAC systems. Warranty details should be confirmed with the product documentation or manufacturer.

BrandFour Seasons
Part Number66786
PositionHose Assembly
Bracket?w/o Bracket
Component TypeSuction Line
DescriptionHose Assemblies
End 1 TypeFlange
End 2 TypeFlange
Fittings IncludedIncluded
Friction Material Attachmentw/o Switch Port
Gasket Or Seal IncludedIncluded
MaterialAluminum / Rubber
Muffler?w/o Muffler
O-Ring A Number/Desc[24109] / Green O-Ring
O-Ring B Number/Desc[24622] / Green O-Ring
O.E. Replacement?Yes
Refrigerant TypeR134a
Service Port Cap Low Side59932
Service Port Qty1
Service Port Valve Core Low Side59334
Service Port?w/ Service Port
Suction End TypeFlange
Sve Port Low SideLow Side
Switch Included?Not Included

This part fits 11 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2014HyundaiSonata2.0LL4GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2014HyundaiSonata2.4LL4GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2013HyundaiSonata2.0LL4GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2013HyundaiSonata2.4LL4GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012HyundaiSonata2.0LL4GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012HyundaiSonata2.4LL4GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012HyundaiSonata2.4LL4ELECTRIC/GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2011HyundaiSonata2.0LL4GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2011HyundaiSonata2.4LL4GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2011HyundaiSonata2.4LL4ELECTRIC/GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2010HyundaiSonataN/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:

21169757114266786785900801212977633R000A83458HA111428C

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