HomeHVAC > Hoses and PipesFour Seasons 55579 A/C Refrigerant Discharge / Suction Hose Assembly
Part #: 55579

Four Seasons 55579 A/C Refrigerant Discharge / Suction Hose Assembly

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: Mercedes-Benz, 300CE, 260E, and 300E
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Four Seasons Hose Assembly 55579

The Four Seasons Hose Assembly 55579 is designed specifically for Mercedes-Benz models 260E, 300CE, and 300E. This A/C refrigerant discharge and suction hose assembly ensures reliable HVAC system performance by maintaining proper refrigerant flow and pressure.

  • Constructed with durable aluminum and rubber materials
  • Compatible with R134a refrigerant type
  • Includes green o-rings ([24610], [24612], [24622]) for secure sealing
  • Equipped with a switch service port and bracket for easy installation
  • Features a muffler and manifold for noise reduction and system efficiency
  • Discharge and suction ends use female UNF o-ring fittings
  • OE replacement part ensuring proper fit and function

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly product line focuses on providing high-quality HVAC hoses and pipes engineered to meet or exceed original equipment specifications. This line includes assemblies designed for both discharge and suction functions, incorporating essential components such as brackets, mufflers, and service ports to facilitate installation and maintain system integrity. The 55579 part is a precise fit for select Mercedes-Benz vehicles, ensuring compatibility and durability.

Detailed Product Description

This hose assembly combines aluminum and rubber materials to withstand the pressures and temperatures typical in automotive air conditioning systems. It is designed for use with R134a refrigerant, the standard for many modern vehicles. The assembly includes three green o-rings to ensure leak-free connections at both discharge and suction ends, which feature female UNF o-ring fittings. A built-in muffler reduces noise, while the included bracket secures the hose assembly in place. The switch service port allows for easy system diagnostics and maintenance. Note that fittings are not included with this assembly.

Common Applications and Issues Addressed

  • Replacement of worn or leaking A/C refrigerant discharge and suction hoses
  • Restoring proper refrigerant flow in Mercedes-Benz 260E, 300CE, and 300E HVAC systems
  • Eliminating noise caused by damaged or missing mufflers in the hose assembly
  • Resolving refrigerant leaks due to degraded o-rings or seals
  • Facilitating system service with integrated switch service port

Installation Notes and Tips

  • Ensure compatibility with Mercedes-Benz 260E, 300CE, or 300E before installation
  • Use the included green o-rings to prevent refrigerant leaks at connection points
  • Secure the hose assembly using the provided bracket to avoid vibration damage
  • Check the switch service port functionality during installation for system diagnostics
  • Do not reuse old fittings; this assembly does not include fittings and requires original or compatible fittings

Quality Assurance and Warranty

The Four Seasons Hose Assembly 55579 is an OE replacement part manufactured to meet original equipment standards for fit, form, and function. It includes all necessary sealing components such as o-rings and gaskets to ensure a reliable installation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.

BrandFour Seasons
Part Number55579
PositionHose Assembly
Bracket?w/ Bracket
Discharge End StyleUNF O-Ring
Discharge End TypeFemale O-Ring
Fittings IncludedNot Included
Friction Material Attachmentw/ Switch Port
Gasket Or Seal IncludedIncluded
Manifold?Yes
MaterialAluminum / Rubber
Muffler?w/ Muffler
O-Ring A Number/Desc[24610] / Green O-Ring
O-Ring B Number/Desc[24612] / Green O-Ring
O-Ring C Number/Desc[24622] / Green O-Ring
O-Rings Included?Included
O.E. Replacement?Yes
Refrigerant TypeR134a
Service Port TypeService Port
Service Port?w/o Service Port
Suction End StyleUNF O-Ring
Suction End TypeFemale O-Ring
Switch Included?w/ Switch Port
TypeDischarge & Suction Line

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
1993Mercedes-Benz300CEN/ATo Eng. 12/52 142408; Hose Assembly
1990Mercedes-Benz300CEN/ATo Eng. 12/52 142408; Hose Assembly
1989Mercedes-Benz300CEN/ATo Eng. 12/52 142408; Hose Assembly
1988Mercedes-Benz300CEN/ATo Eng. 12/52 142408; Hose Assembly
1987Mercedes-Benz260EN/ATo Eng. 12/52 142409; Hose Assembly
1987Mercedes-Benz300EN/AFrom Eng. 12/52 056426; Hose Assembly
1986Mercedes-Benz300EN/AFrom Eng. 12/52 056426; 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:

103130325711155579153367619144877191915202006243504537813945185455579781394802515A90624CWK781394HA1827T55579

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