OE Quality
60-Day Returns

Four Seasons 66676 A/C Refrigerant Liquid Hose
Overview of Four Seasons Hose Assembly 66676
The Four Seasons Hose Assembly 66676 is designed specifically for the Mazda CX-3 HVAC system. This A/C refrigerant liquid hose is engineered to handle high-pressure R134a refrigerant, ensuring reliable performance in your vehicle's air conditioning system.
- Constructed from durable aluminum and rubber materials
- Compatible with R134a refrigerant type
- High-pressure system rated for demanding HVAC applications
- Includes gasket and two O-rings for secure sealing
- Features a P-nut fitting liquid line style
- Equipped with a male springlock suction end type
- Includes a switch service port with a 3/8" - 24 size
- OE replacement part designed for Mazda CX-3
- Comes with an orifice tube and without a bracket or service port
About the Four Seasons Hose Assembly Product Line
The Four Seasons Hose Assembly line focuses on providing reliable hose assemblies for automotive HVAC systems. This product line emphasizes quality materials and precise fitment to meet original equipment specifications. The 66676 hose assembly is part of this line, offering a liquid line hose assembly without an orifice tube but with an integrated orifice tube feature, designed to maintain system integrity and performance in Mazda CX-3 vehicles.
Detailed Product Description
This A/C refrigerant liquid hose assembly combines aluminum and rubber to provide durability and flexibility under high-pressure conditions typical of R134a refrigerant systems. The inclusion of a gasket and two O-rings ensures a tight seal to prevent leaks. The P-nut fitting style allows for secure connections, while the male springlock suction end type facilitates easy installation. The hose assembly also features a switch service port sized at 3/8" - 24, enabling system diagnostics or maintenance without disassembly. Designed as an OE replacement, part number 66676 fits the Mazda CX-3 HVAC system precisely, maintaining factory performance standards.
Common Applications and Issues Addressed
- Replacement of worn or damaged A/C refrigerant liquid hoses in Mazda CX-3
- Resolving refrigerant leaks caused by cracked or deteriorated hoses
- Restoring proper high-pressure refrigerant flow in the HVAC system
- Addressing issues related to faulty or missing orifice tubes within the liquid line
- Improving system reliability by replacing assemblies without brackets or service ports
Installation Notes and Tips
- Ensure compatibility with Mazda CX-3 HVAC systems before installation
- Use the included gasket and O-rings to achieve a leak-free seal
- Check the switch service port for proper connection and accessibility
- Handle the aluminum and rubber components carefully to avoid damage during installation
- Follow manufacturer torque specifications for P-nut fittings and springlock connections
Quality Assurance and Warranty
Four Seasons products are manufactured to meet or exceed original equipment standards. The Hose Assembly 66676 undergoes rigorous quality control to ensure durability and performance in high-pressure HVAC applications. This part is backed by Four Seasons' standard warranty coverage, providing confidence in its reliability for Mazda CX-3 owners.
| Brand | Four Seasons |
| Part Number | 66676 |
| Position | Hose Assembly |
| Bracket? | w/o Bracket |
| Description | Hose Assemblies |
| Friction Material Attachment | w/ Switch Port |
| Gasket Or Seal Included | Included |
| Liquid Line Style | P-Nut Fitting |
| Material | Aluminum / Rubber |
| 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 | Male Springlock |
| Switch Port Size | 3/8" - 24 |
| System Pressure | High Pressure |
| Type | Liquid Line |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2021 | Mazda | CX-3 | N/A | Fitment: Without Orifice Tube.; Hose Assembly |
| 2020 | Mazda | CX-3 | N/A | Fitment: Without Orifice Tube.; Hose Assembly |
| 2019 | Mazda | CX-3 | N/A | Fitment: Without Orifice Tube.; Hose Assembly |
| 2018 | Mazda | CX-3 | N/A | Fitment: Without Orifice Tube.; Hose Assembly |
| 2017 | Mazda | CX-3 | N/A | Fitment: Without Orifice Tube.; Hose Assembly |
| 2016 | Mazda | CX-3 | N/A | Fitment: Without Orifice Tube.; 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.