OE Quality
60-Day Returns

Four Seasons 66302 A/C Refrigerant Liquid Hose - Rear
Reliable A/C Refrigerant Liquid Hose for Audi Q7 and Volkswagen Touareg
The Four Seasons Hose Assembly 66302 is designed to maintain optimal performance in your vehicle's HVAC system. Engineered specifically for high-pressure R134a refrigerant systems, this liquid line hose assembly ensures efficient refrigerant flow and system reliability for Audi Q7 and Volkswagen Touareg models.
Key Features of Four Seasons Hose Assembly 66302
- Constructed from durable aluminum and rubber materials for long-lasting use
- Compatible with R134a refrigerant type and high-pressure HVAC systems
- Includes a green O-ring (part number 24649) for a secure, leak-free seal
- Features male liquid line with P-nut fitting style for precise connection
- Equipped with an orifice tube and no service or switch ports or brackets
- OE replacement part ensuring proper fit and function for Audi Q7 and Volkswagen Touareg
About the Four Seasons Hose Assembly Product Line
The Hose Assembly line by Four Seasons focuses on delivering reliable HVAC hose and pipe solutions tailored for specific vehicle applications. This product line emphasizes quality materials and exact fitment, providing assemblies that meet or exceed original equipment specifications. The 66302 hose assembly is part of this line, designed to integrate seamlessly into the liquid line of your vehicle’s air conditioning system without the need for additional brackets or service ports.
Detailed Product Description
The Four Seasons 66302 A/C refrigerant liquid hose is engineered for use in high-pressure R134a systems found in Audi Q7 and Volkswagen Touareg vehicles. Its aluminum and rubber construction offers resistance to wear and heat, ensuring durability under demanding operating conditions. The hose assembly includes a green O-ring (24649) to maintain a tight seal and prevent refrigerant leaks. The male liquid line with P-nut fitting style allows for secure and straightforward installation. This hose assembly comes without a service port or switch port and does not include a bracket, simplifying the replacement process while maintaining system integrity.
Common HVAC Issues Addressed by This Hose Assembly
- Leaks in the liquid refrigerant line causing reduced cooling efficiency
- Wear or damage to original hose assemblies leading to system pressure loss
- Failure of seals or O-rings resulting in refrigerant loss
- Corrosion or cracking of hose materials under high pressure and temperature
- Compatibility issues with aftermarket or non-OE replacement parts
Installation Notes and Tips
- Ensure system is fully depressurized before removing the old hose assembly
- Verify the green O-ring (24649) is properly seated to prevent leaks
- Use appropriate tools for P-nut fittings to avoid damage during installation
- Check for any signs of wear or damage on adjacent components during replacement
- Confirm compatibility with Audi Q7 and Volkswagen Touareg HVAC systems before installation
Quality Assurance and Warranty
Four Seasons Hose Assembly 66302 is manufactured to meet original equipment standards, providing reliable performance and fitment. The product includes a gasket or seal to ensure leak-free operation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Always refer to the manufacturer’s warranty documentation for complete terms.
| Brand | Four Seasons |
| Part Number | 66302 |
| Position | Hose Assembly, Rear |
| Bracket? | w/o Bracket |
| Description | Hose Assemblies |
| Friction Material Attachment | w/o Switch Port |
| Gasket Or Seal Included | Included |
| Liquid Line Gender | Male |
| Liquid Line Style | P-Nut Fitting |
| Material | Aluminum / Rubber |
| O-Ring A Number/Desc | [24649] / Green O-Ring |
| O.E. Replacement? | Yes |
| Orifice Tube? | w/ Orifice Tube |
| Refrigerant Type | R134a |
| Service Port? | w/o Service Port |
| Style | Liquid Line Hose Assembly w/o Orifice Tube |
| Suction End Type | P-Nut Fitting |
| System Pressure | High Pressure |
| Type | Liquid Line |
This part fits 19 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2015 | Audi | Q7 | 3.0L | V6 | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | |
| 2014 | Audi | Q7 | 3.0L | V6 | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | |
| 2013 | Audi | Q7 | 3.0L | V6 | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | |
| 2012 | Audi | Q7 | 3.0L | V6 | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | |
| 2011 | Audi | Q7 | 3.0L | V6 | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | |
| 2010 | Audi | Q7 | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | |||
| 2010 | Volkswagen | Touareg | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | |||
| 2009 | Audi | Q7 | 3.6L | V6 | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | |
| 2009 | Audi | Q7 | 4.2L | V8 | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | |
| 2009 | Volkswagen | Touareg | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | |||
| 2009 | Volkswagen | Touareg | Base | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | ||
| 2009 | Volkswagen | Touareg | TDI | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | ||
| 2009 | Volkswagen | Touareg | Highline | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | ||
| 2009 | Volkswagen | Touareg | Comfortline | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | ||
| 2009 | Volkswagen | Touareg | Execline | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | ||
| 2008 | Audi | Q7 | 3.6L | V6 | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | |
| 2008 | Audi | Q7 | 4.2L | V8 | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | |
| 2007 | Audi | Q7 | 3.6L | V6 | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; Hose Assembly | |
| 2007 | Audi | Q7 | 4.2L | V8 | Rear | w/o Orifice Tube; w/ Rear AC; Junction To Junction; 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.