OE Quality
60-Day Returns

Four Seasons 66325 A/C Refrigerant Suction Hose - Rear
Overview of Four Seasons Hose Assembly 66325
The Four Seasons Hose Assembly 66325 is designed specifically for Mercedes-Benz models including the R63 AMG, R320, R350, and R500. This A/C refrigerant suction hose ensures reliable low-pressure operation within your vehicle's HVAC system, maintaining optimal air conditioning performance.
- Constructed from durable aluminum and rubber materials
- Includes P-nut fitting on one end and flange suction end
- Compatible with R134a refrigerant type
- Comes with gasket and fittings included for secure installation
- OE replacement part designed without switch service port or muffler
Four Seasons Hose Assembly Product Line Details
The Hose Assembly line by Four Seasons focuses on delivering precise HVAC hose and pipe components engineered for specific vehicle applications. The 66325 part is part of this line, offering a direct OE replacement suction line that supports low-pressure refrigerant flow without additional brackets or mufflers, ensuring a straightforward fit and function for Mercedes-Benz models.
Detailed Product Description
This A/C refrigerant suction hose assembly features a combination of aluminum and rubber construction, providing durability and flexibility needed for the HVAC system. The hose includes a P-nut fitting on one end and a flange suction end, designed to connect securely within the system. It is compatible with R134a refrigerant and operates under low system pressure. The assembly comes with a green O-ring (part number 24642) and necessary fittings, but does not include a switch or service port, bracket, or muffler. This part is an exact OE replacement, ensuring compatibility and reliable performance for Mercedes-Benz R63 AMG, R320, R350, and R500 models.
Common Applications and Issues Addressed
- Replacement of worn or leaking A/C refrigerant suction hoses
- Restoring proper refrigerant flow in low-pressure HVAC systems
- Eliminating refrigerant leaks caused by damaged fittings or seals
- Resolving A/C system inefficiencies due to faulty suction lines
- Maintaining OEM specifications for Mercedes-Benz HVAC components
Installation Notes and Tips
When installing the Four Seasons Hose Assembly 66325, ensure the green O-ring is properly seated to prevent refrigerant leaks. The included fittings and gasket should be used to secure connections tightly. This hose assembly does not include a bracket or muffler, so verify existing mounting points on the vehicle. Compatible with Mercedes-Benz R63 AMG, R320, R350, and R500 models, it is important to confirm fitment before installation.
Quality Assurance and Warranty
Four Seasons provides this hose assembly as an OE replacement part, meeting original equipment standards for fit and function. The product includes all necessary seals and fittings to ensure a reliable installation. While specific warranty details are not provided here, Four Seasons parts typically come with a limited warranty covering defects in materials and workmanship.
| Brand | Four Seasons |
|---|---|
| Part Number | 66325 |
| Position | Hose Assembly, Rear |
| Bracket? | w/o Bracket |
| Component Type | Suction Line |
| Description | Hose Assemblies |
| End 1 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 | [24642] / Green O-Ring |
| O.E. Replacement? | Yes |
| Refrigerant Type | R134a |
| Service Port? | w/o Service Port |
| Suction End Type | Flange |
| Switch Included? | Not Included |
| System Pressure | Low Pressure |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2012 | Mercedes-Benz | R350 | 3.5L | V6 | Rear | Suction Line; 2nd Section; Separation Point to Expansion Valve; Hose Assembly |
| 2011 | Mercedes-Benz | R350 | Rear | Suction Line; 2nd Section; Separation Point to Expansion Valve; Hose Assembly | ||
| 2010 | Mercedes-Benz | R350 | 3.5L | V6 | N/A | Suction Line; 2nd Section; Separation Point to Expansion Valve; Hose Assembly |
| 2010 | Mercedes-Benz | R350 | 3.0L | V6 | Rear | Suction Line; 2nd Section; Separation Point to Expansion Valve; Hose Assembly |
| 2009 | Mercedes-Benz | R320 | Rear | Suction Line; 2nd Section; Separation Point to Expansion Valve; Hose Assembly | ||
| 2009 | Mercedes-Benz | R350 | Rear | Suction Line; 2nd Section; Separation Point to Expansion Valve; Hose Assembly | ||
| 2008 | Mercedes-Benz | R320 | Rear | Suction Line; 2nd Section; Separation Point to Expansion Valve; Hose Assembly | ||
| 2008 | Mercedes-Benz | R350 | Rear | Suction Line; 2nd Section; Separation Point to Expansion Valve; Hose Assembly | ||
| 2007 | Mercedes-Benz | R320 | Rear | Suction Line; 2nd Section; Separation Point to Expansion Valve; Hose Assembly | ||
| 2007 | Mercedes-Benz | R350 | Rear | Suction Line; 2nd Section; Separation Point to Expansion Valve; Hose Assembly | ||
| 2007 | Mercedes-Benz | R500 | Rear | Suction Line; 2nd Section; Separation Point to Expansion Valve; Hose Assembly | ||
| 2007 | Mercedes-Benz | R63 AMG | Rear | Suction Line; 2nd Section; Separation Point to Expansion Valve; Hose Assembly | ||
| 2006 | Mercedes-Benz | R350 | Rear | Suction Line; 2nd Section; Separation Point to Expansion Valve; Hose Assembly | ||
| 2006 | Mercedes-Benz | R500 | Rear | Suction Line; 2nd Section; Separation Point to Expansion Valve; 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.