HomeHVAC > Hoses and PipesFour Seasons 66317 A/C Refrigerant Suction Hose
Part #: 66317

Four Seasons 66317 A/C Refrigerant Suction Hose

Hose Assembly
⚙️ 6 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Mercedes-Benz, GL350 and ML350
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Four Seasons Hose Assembly 66317

The Four Seasons Hose Assembly 66317 is designed specifically for Mercedes-Benz GL350 and ML350 models. This A/C refrigerant suction hose ensures reliable low-pressure refrigerant flow within your vehicle's HVAC system, maintaining optimal air conditioning performance.

  • Constructed from durable aluminum and rubber materials
  • Equipped with P-nut fittings on both ends for secure connections
  • Compatible with R134a refrigerant systems
  • Includes green O-rings [24684] and [24635] for proper sealing
  • Comes with necessary fittings and gasket for installation
  • Designed as a suction line for low-pressure A/C system operation
  • OE replacement part ensuring factory-level 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 replacements that meet original equipment specifications. The 66317 hose assembly is part of this line, providing a direct fit for Mercedes-Benz GL350 and ML350 vehicles. This line emphasizes quality materials and proper sealing components to maintain system integrity and performance.

Detailed Product Description

This A/C refrigerant suction hose assembly is constructed with a combination of aluminum and rubber, offering durability and flexibility required for the HVAC system's low-pressure side. Both ends feature P-nut fittings, ensuring a secure and leak-free connection to the vehicle's A/C components. The hose is designed for use with R134a refrigerant, the standard for many modern vehicles including the Mercedes-Benz GL350 and ML350. Included with the hose are green O-rings [24684] and [24635], which provide effective sealing to prevent refrigerant leaks. The assembly also includes the necessary fittings and gasket, simplifying installation without the need for additional parts. This hose assembly does not include a bracket, muffler, or switch, and it is designed without a service port switch but does include a service port on the low-pressure side.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant suction hoses
  • Resolving refrigerant leaks caused by cracked or degraded hoses
  • Restoring proper low-pressure refrigerant flow in the HVAC system
  • Eliminating poor A/C performance due to faulty suction lines
  • Maintaining system pressure integrity for efficient cooling

Installation Notes and Tips

  • Ensure compatibility with Mercedes-Benz GL350 and ML350 models before installation
  • Inspect O-rings and fittings for damage and replace if necessary
  • Use proper torque specifications for P-nut fittings to avoid leaks
  • Verify that the system is evacuated and recharged with R134a refrigerant after installation
  • Check for leaks using appropriate detection methods before completing the job

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66317 is an OE replacement part, manufactured to meet or exceed original equipment standards. It includes all necessary sealing components to ensure a reliable fit and function. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.

BrandFour Seasons
Part Number66317
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 TypeR134a
Service Port?w/ Service Port
Suction End TypeP-Nut Fitting
Sve Port Low SideLow Side
Switch Included?Not Included
System PressureLow Pressure

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2015Mercedes-BenzGL350N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2014Mercedes-BenzGL350N/ASuction Line; To Compressor; Hose Assembly
2014Mercedes-BenzML3503.0LV6N/ASuction Line; To Compressor; Hose Assembly
2013Mercedes-BenzGL350N/ASuction Line; To Compressor; Hose Assembly
2013Mercedes-BenzML3503.0LV6N/ASuction Line; To Compressor; Hose Assembly
2012Mercedes-BenzML3503.0LV6N/ASuction Line; To Compressor; 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:

166830111521121466317785662A82816ME1668300215

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