Four Seasons 66451 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 66451

The Four Seasons Hose Assembly 66451 is designed specifically for the Nissan LEAF HVAC system. This A/C refrigerant suction hose ensures reliable low-pressure refrigerant flow with durable aluminum and rubber construction, making it a precise replacement for your vehicle's original part.

• Constructed from aluminum and rubber for durability and flexibility
• Equipped with P-nut fittings on both ends for secure connections
• Compatible with R134a refrigerant systems
• Includes black and green O-rings for proper sealing
• Features a service port with a 13 mm size for easy maintenance
• Designed as a low-pressure suction line without a switch or muffler
• OE replacement part ensuring proper fit and function

Detailed Product Description

This Four Seasons Hose Assembly from the Hose Assembly product line is engineered to meet the specific HVAC requirements of the Nissan LEAF. The part number 66451 identifies this A/C refrigerant suction hose, which is constructed from a combination of aluminum and rubber materials to withstand the demands of the vehicle's air conditioning system. Both ends of the hose feature P-nut fittings, providing a secure and leak-resistant connection to the system. The hose is designed for use with R134a refrigerant and operates under low system pressure, making it suitable for the suction side of the A/C system.

The assembly includes essential sealing components such as one black O-ring (part number 24150) and one green O-ring (part number 24684), ensuring a tight seal and preventing refrigerant leaks. Additionally, the hose comes with a service port sized at 13 mm, allowing for convenient system servicing without the need for additional adapters. This hose assembly does not include a bracket, muffler, or switch, focusing solely on the suction line function.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant suction hoses in Nissan LEAF models
• Resolving refrigerant leaks caused by deteriorated seals or fittings
• Restoring proper refrigerant flow to improve air conditioning performance
• Addressing low-pressure side failures in the HVAC system
• Maintaining system integrity during routine A/C maintenance or repairs

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66451, ensure that the P-nut fittings are tightened to manufacturer specifications to prevent leaks. Verify that the included black and green O-rings are properly seated to maintain a secure seal. Since this hose assembly does not include a bracket or muffler, confirm that the existing mounting points and components are intact and secure. The service port allows for easy access during refrigerant charging or system diagnostics.

Quality Assurance and Warranty

Four Seasons manufactures the Hose Assembly 66451 to meet or exceed OEM standards for fit, form, and function. This part is an exact OE replacement designed specifically for the Nissan LEAF HVAC system. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty against defects in materials and workmanship, ensuring reliability and peace of mind.