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Four Seasons 66317 A/C Refrigerant Suction Hose
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.
| Brand | Four Seasons |
| Part Number | 66317 |
| Position | Hose Assembly |
| Bracket? | w/o Bracket |
| Component Type | Suction Line |
| Description | Hose Assemblies |
| End 1 Type | P-Nut Fitting |
| End 2 Type | P-Nut Fitting |
| Fittings Included | Included |
| Friction Material Attachment | w/o Switch Port |
| Gasket Or Seal Included | Included |
| Material | Aluminum / 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 Type | R134a |
| Service Port? | w/ Service Port |
| Suction End Type | P-Nut Fitting |
| Sve Port Low Side | Low Side |
| Switch Included? | Not Included |
| System Pressure | Low Pressure |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2015 | Mercedes-Benz | GL350 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly | ||
| 2014 | Mercedes-Benz | GL350 | N/A | Suction Line; To Compressor; Hose Assembly | ||
| 2014 | Mercedes-Benz | ML350 | 3.0L | V6 | N/A | Suction Line; To Compressor; Hose Assembly |
| 2013 | Mercedes-Benz | GL350 | N/A | Suction Line; To Compressor; Hose Assembly | ||
| 2013 | Mercedes-Benz | ML350 | 3.0L | V6 | N/A | Suction Line; To Compressor; Hose Assembly |
| 2012 | Mercedes-Benz | ML350 | 3.0L | V6 | N/A | Suction 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.