HomeHVAC > Hoses and PipesFour Seasons 66683 A/C Refrigerant Suction Hose
Part #: 66683

Four Seasons 66683 A/C Refrigerant Suction Hose

Hose Assembly
⚙️ 10 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Mercedes-Benz, CLS500, CLS55 AMG, E500, and E55 AMG
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Four Seasons Hose Assembly 66683

The Four Seasons Hose Assembly 66683 is designed specifically for Mercedes-Benz models including the CLS55 AMG, CLS500, E55 AMG, and E500. This A/C refrigerant suction hose is engineered to meet original equipment specifications, ensuring reliable performance in your vehicle's HVAC system.

  • Constructed from durable aluminum and rubber materials
  • Features a male o-ring fitting on one end and a P-nut fitting on the other
  • Compatible with R134a refrigerant systems
  • Includes gasket and fittings for secure installation
  • Designed as a low-pressure suction line without a service port or muffler

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line by Four Seasons focuses on providing complete hose solutions for automotive HVAC systems. This line includes assemblies that combine multiple components such as fittings, gaskets, and seals to simplify installation and ensure system integrity. The 66683 part number is part of this line, offering a ready-to-install suction hose assembly tailored for specific Mercedes-Benz vehicles.

Detailed Product Description

The Four Seasons 66683 A/C refrigerant suction hose is constructed with a combination of aluminum and rubber to provide flexibility and durability under low-pressure conditions. It features a male o-ring fitting on one end and a P-nut fitting on the suction end, both designed to maintain a secure, leak-free connection. The hose is compatible with R134a refrigerant, the standard for many modern automotive air conditioning systems. Included with the hose are two green round o-rings (part number 24635) and necessary fittings, ensuring a complete replacement that meets original equipment standards. This assembly does not include a service port, muffler, bracket, or switch, focusing solely on the suction line function.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant suction hoses in Mercedes-Benz CLS55 AMG, CLS500, E55 AMG, and E500 models
  • Resolving refrigerant leaks caused by cracked or deteriorated hose materials
  • Restoring proper low-pressure refrigerant flow within the HVAC system
  • Eliminating poor A/C performance due to faulty suction line components
  • Ensuring system integrity with included gaskets and fittings for a secure seal

Installation Notes and Tips

  • Verify compatibility with your specific Mercedes-Benz model before installation
  • Use the included green round o-rings (part number 24635) to ensure proper sealing
  • Inspect mating surfaces for damage or debris prior to assembly
  • Do not attempt to install without the included fittings and gasket to avoid leaks
  • Follow manufacturer torque specifications for P-nut and male o-ring fittings

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66683 is an original equipment replacement part designed to meet or exceed OEM standards for fit, form, and function. It undergoes rigorous quality control to ensure durability and performance in Mercedes-Benz HVAC systems. 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 Number66683
PositionHose Assembly
Bracket?w/o Bracket
Component TypeSuction Line
DescriptionHose Assemblies
End 1 TypeMale O-Ring
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[24635] / Green Round O-Ring
O.E. Replacement?Yes
Refrigerant TypeR134a
Service Port?w/o Service Port
Suction End TypeP-Nut Fitting
Switch Included?Not Included
System PressureLow Pressure

This part fits 10 vehicles. Search below:

YearMakeModelPositionNotes
2006Mercedes-BenzCLS500N/ASuction Line; Compressor End; Hose Assembly
2006Mercedes-BenzCLS55 AMGN/ASuction Line; Compressor End; Hose Assembly
2006Mercedes-BenzE500N/ASuction Line; Compressor End; Hose Assembly
2006Mercedes-BenzE55 AMGN/ASuction Line; Compressor End; Hose Assembly
2005Mercedes-BenzE500N/ASuction Line; Compressor End; Hose Assembly
2005Mercedes-BenzE55 AMGN/ASuction Line; Compressor End; Hose Assembly
2004Mercedes-BenzE500N/ASuction Line; Compressor End; Hose Assembly
2004Mercedes-BenzE55 AMGN/ASuction Line; Compressor End; Hose Assembly
2003Mercedes-BenzE500N/ASuction Line; Compressor End; Hose Assembly
2003Mercedes-BenzE55 AMGN/ASuction Line; Compressor End; 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:

211594211830081566683785746A83201HA113580C

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