OE Quality
60-Day Returns

Four Seasons 65378 A/C Refrigerant Suction Hose
Reliable A/C Refrigerant Suction Hose for Nissan LEAF
The Four Seasons Hose Assembly 65378 is designed specifically for the Nissan LEAF, providing a durable and efficient solution for your vehicle's HVAC system. This A/C refrigerant suction hose supports both R134a and R1234yf refrigerants, ensuring compatibility with modern air conditioning systems.
Key Features of Four Seasons Hose Assembly 65378
- Constructed from aluminum and rubber for durability and flexibility
- Compatible with refrigerants R134a and R1234yf
- Includes gasket or seal for secure connections
- Service port included for easy maintenance
- Designed without muffler and bracket for straightforward installation
About the Four Seasons Hose Assembly Product Line
The Four Seasons Hose Assembly line focuses on providing high-quality hose assemblies tailored for HVAC applications. This product line emphasizes reliable materials and precise fitment to maintain optimal air conditioning performance. The 65378 hose assembly is part of this line, engineered to meet the specific requirements of the Nissan LEAF's HVAC system.
Detailed Product Description
The Four Seasons 65378 A/C refrigerant suction hose combines aluminum and rubber materials to balance strength and flexibility, essential for handling refrigerant flow under varying temperatures and pressures. It supports both R134a and R1234yf refrigerants, making it suitable for Nissan LEAF models equipped with these refrigerants. The included gasket or seal ensures a tight, leak-free connection, while the service port allows for convenient system servicing. This hose assembly does not include a muffler or bracket, simplifying the installation process and reducing potential points of failure.
Common Applications and Issues Addressed
- Replacement of worn or damaged A/C refrigerant suction hoses in Nissan LEAF vehicles
- Resolving refrigerant leaks caused by cracked or deteriorated hoses
- Upgrading to a hose compatible with both R134a and R1234yf refrigerants
- Improving HVAC system efficiency by restoring proper refrigerant flow
- Facilitating maintenance with an included service port
Installation Notes and Tips
When installing the Four Seasons Hose Assembly 65378, ensure the gasket or seal is properly seated to prevent leaks. Since this hose does not include a bracket or muffler, verify that the existing mounting points on the Nissan LEAF are secure and intact. Use appropriate tools to avoid damaging the aluminum or rubber components during installation. The included service port allows for easy refrigerant charging and system diagnostics.
Quality Assurance and Warranty
Four Seasons products are manufactured to meet industry standards for HVAC components. The 65378 hose assembly undergoes quality checks to ensure durability and compatibility with Nissan LEAF models. Please refer to Four Seasons' official warranty policy for specific coverage details.
| Brand | Four Seasons |
| Part Number | 65378 |
| Position | Hose Assembly |
| Material | Aluminum / rubber |
| Refrigerant Type | R134a r1234yf |
| Gasket Or Seal Included | Included |
| Switch Service Port | No |
| Bracket? | No |
| Description | Hose assemblies |
| Muffler? | W/o muffler |
| Service Port Included | Yes |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2024 | Nissan | LEAF | N/A | w/o Heat Pump; Hose Assembly |
| 2023 | Nissan | LEAF | N/A | w/o Heat Pump; Hose Assembly |
| 2022 | Nissan | LEAF | N/A | w/o Heat Pump; Hose Assembly |
| 2021 | Nissan | LEAF | N/A | w/o Heat Pump; 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.