HomeHVAC > Hoses and PipesFour Seasons 65839 A/C Refrigerant Liquid Hose
Part #: 65839

Four Seasons 65839 A/C Refrigerant Liquid Hose

Hose Assembly
⚙️ 18 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, C300, C400, C43 AMG, and C450 AMG
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Overview of Four Seasons Hose Assembly 65839

The Four Seasons Hose Assembly 65839 is designed specifically for Mercedes-Benz models including the C43 AMG, C300, C400, and C450 AMG. This A/C refrigerant liquid hose ensures reliable performance in your vehicle's HVAC system by using durable aluminum and rubber materials.

  • Constructed from aluminum and rubber for durability and flexibility
  • Features a P-nut fitting on one end for secure connections
  • Compatible with R1234yf refrigerant type
  • Includes gasket and fittings for proper sealing
  • Liquid line hose assembly without an orifice tube
  • Does not include a bracket, service port, or switch port

Detailed Product Description

This Four Seasons Hose Assembly belongs to the Hose Assembly product line, which focuses on providing high-quality hose assemblies for automotive HVAC systems. The 65839 part is a liquid line hose assembly designed without an orifice tube but includes an orifice tube feature integrated within the hose assembly. It is engineered to handle R1234yf refrigerant, which is commonly used in modern Mercedes-Benz vehicles. The combination of aluminum and rubber materials offers a balance of strength and flexibility, ensuring the hose withstands pressure and temperature variations within the A/C system.

Compatible Vehicles and Applications

This hose assembly is compatible with the following Mercedes-Benz models:

  • Mercedes-Benz C43 AMG
  • Mercedes-Benz C300
  • Mercedes-Benz C400
  • Mercedes-Benz C450 AMG

It is specifically designed to replace the liquid line hose in the HVAC system, maintaining proper refrigerant flow and system efficiency.

Common Issues Addressed by Hose Assembly 65839

  • Leaks or cracks in the A/C refrigerant liquid hose
  • Reduced cooling performance due to damaged or worn hoses
  • Corrosion or wear from exposure to heat and refrigerant
  • Improper sealing causing refrigerant loss
  • Failure of original hose assemblies in Mercedes-Benz C-Class models

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 65839, ensure the P-nut fitting is properly tightened to prevent leaks. Since this assembly does not include a bracket, verify that the hose is securely supported by existing vehicle mounts. The included gasket and fittings should be used to maintain a proper seal. This part is designed for use with R1234yf refrigerant systems, so confirm refrigerant compatibility before installation.

Quality Assurance and Warranty

Four Seasons products are manufactured to meet or exceed OEM specifications for fit and function. The Hose Assembly 65839 undergoes rigorous quality control to ensure durability and reliability in Mercedes-Benz HVAC systems. Warranty information is provided by Four Seasons and typically covers defects in materials and workmanship under normal use.

BrandFour Seasons
Part Number65839
PositionHose Assembly
MaterialAluminum / rubber
End 1 TypeP-nut fitting
Refrigerant TypeR1234yf
Gasket Or Seal IncludedIncluded
Fittings IncludedIncluded
Bracket?W/o bracket
DescriptionHose assemblies
Orifice Tube?W/ orifice tube
Service Port IncludedNo
StyleLiquid line hose assembly w/o orifice tube
Switch Port IncludedNo
TypeLiquid line

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2023Mercedes-BenzC3002.0LL4GASN/Aw/o Orifice Tube; Hose Assembly
2023Mercedes-BenzC43 AMG3.0LV6N/Aw/o Orifice Tube; Hose Assembly
2022Mercedes-BenzC3002.0LL4GASN/Aw/o Orifice Tube; Hose Assembly
2022Mercedes-BenzC43 AMGN/Aw/o Orifice Tube; Hose Assembly
2021Mercedes-BenzC300N/Aw/o Orifice Tube; Hose Assembly
2021Mercedes-BenzC43 AMGN/Aw/o Orifice Tube; Hose Assembly
2020Mercedes-BenzC300N/Aw/o Orifice Tube; Hose Assembly
2020Mercedes-BenzC43 AMGN/Aw/o Orifice Tube; Hose Assembly
2019Mercedes-BenzC300N/Aw/o Orifice Tube; Hose Assembly
2019Mercedes-BenzC43 AMGN/Aw/o Orifice Tube; Hose Assembly
2018Mercedes-BenzC300N/Aw/o Orifice Tube; Hose Assembly
2018Mercedes-BenzC43 AMGN/Aw/o Orifice Tube; Hose Assembly
2017Mercedes-BenzC300N/Aw/o Orifice Tube; Hose Assembly
2017Mercedes-BenzC43 AMGN/Aw/o Orifice Tube; Hose Assembly
2016Mercedes-BenzC300N/Aw/o Orifice Tube; Hose Assembly
2016Mercedes-BenzC450 AMGN/Aw/o Orifice Tube; Hose Assembly
2015Mercedes-BenzC300N/Aw/o Orifice Tube; Hose Assembly
2015Mercedes-BenzC400N/Aw/o Orifice Tube; 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:

205830570220583057026421224665839A83279HA114253C

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