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Four Seasons 66050 A/C Liquid Line with Orifice Tube
Overview of Four Seasons Hose Assembly 66050
The Four Seasons Hose Assembly 66050 is designed specifically for heavy-duty Chevrolet and GMC trucks, including the Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, and Silverado 3500 HD models. This A/C liquid line with orifice tube ensures reliable performance in your vehicle's HVAC system by maintaining proper refrigerant flow and pressure.
- Constructed from durable aluminum material for corrosion resistance
- Compatible with R134a refrigerant systems
- Includes gasket and fittings for a complete installation
- Equipped with a serviceable orifice tube and service port for maintenance
- Designed without a bracket and switch service port for direct fit
- Features a 16 mm high side service port with P-nut fitting suction end
- O.E. replacement part ensuring factory-level compatibility
Detailed Product Description
This Four Seasons Hose Assembly 66050 belongs to the Hose Assembly product line, which focuses on providing precise and reliable hose and pipe solutions for automotive HVAC systems. The liquid line hose assembly includes a serviceable orifice tube and a high side service port, allowing for efficient refrigerant flow and easy servicing. Made from aluminum, this hose assembly resists corrosion and withstands the demands of heavy-duty truck applications. It is designed to work with R134a refrigerant, the standard for many modern A/C systems, and comes complete with necessary gaskets and fittings to ensure a secure and leak-free installation.
Applications and Common Issues Addressed
- Replacement of worn or damaged A/C liquid lines in Chevrolet and GMC heavy-duty trucks
- Restoring proper refrigerant flow and pressure in the HVAC system
- Fixing leaks caused by cracked or corroded hose assemblies
- Resolving A/C system inefficiencies due to faulty orifice tubes
- Facilitating maintenance with a service port for refrigerant charging and diagnostics
Installation Notes and Tips
When installing the Four Seasons Hose Assembly 66050, ensure the vehicle is compatible by verifying the make and model: Chevrolet Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, or Silverado 3500 HD. The assembly comes without a bracket and switch service port, so use existing mounting points and wiring as applicable. The included gasket and fittings simplify the installation process, but proper torque specifications should be followed to prevent leaks. The serviceable orifice tube allows for easy replacement or cleaning during routine maintenance.
Quality Assurance and Warranty
Four Seasons provides this hose assembly as an O.E. replacement part, meeting original equipment standards for fit, form, and function. The aluminum construction and included components are designed to deliver durability and reliable performance in demanding HVAC applications. Warranty details are provided by Four Seasons and typically cover defects in materials and workmanship under normal use.
| Brand | Four Seasons |
| Part Number | 66050 |
| Position | Hose Assembly |
| Bracket? | w/o Bracket |
| Description | Hose Assemblies |
| Fittings Included | Included |
| Friction Material Attachment | w/o Switch Port |
| Gasket Or Seal Included | Included |
| Material | Aluminum |
| O.E. Replacement? | Yes |
| Orifice Tube? | w/ Orifice Tube |
| Refrigerant Type | R134a |
| Service Port Size | 16 mm |
| Service Port? | w/ Service Port |
| Style | Liquid Line Hose Assembly w/ Serviceable Orifice Tube |
| Suction End Type | P-Nut Fitting |
| Svc Port High Side | High Side |
| Type | Liquid Line |
This part fits 18 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2014 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | w/o ambulance package; Hose Assembly | |
| 2014 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | w/o ambulance package; Hose Assembly | |
| 2014 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | w/o ambulance package; Hose Assembly | |
| 2014 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | w/o ambulance package; Hose Assembly | |
| 2013 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | w/o ambulance package; Hose Assembly | |
| 2013 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | w/o ambulance package; Hose Assembly | |
| 2013 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | N/A | w/o ambulance package; Hose Assembly |
| 2013 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | N/A | w/o ambulance package; Hose Assembly |
| 2012 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | w/o ambulance package; Hose Assembly | |
| 2012 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | w/o ambulance package; Hose Assembly | |
| 2012 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | N/A | w/o ambulance package; Hose Assembly |
| 2012 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | w/o ambulance package; Hose Assembly | |
| 2012 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | N/A | w/o ambulance package; Hose Assembly |
| 2011 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | w/o ambulance package; Hose Assembly | |
| 2011 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | w/o ambulance package; Hose Assembly | |
| 2011 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | N/A | w/o ambulance package; Hose Assembly |
| 2011 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | w/o ambulance package; Hose Assembly | |
| 2011 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | N/A | w/o ambulance package; 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.