Four Seasons 66431 A/C Refrigerant Discharge Hose

Overview of Four Seasons Hose Assembly 66431

The Four Seasons Hose Assembly 66431 is designed specifically for Nissan Sentra models requiring a reliable A/C refrigerant discharge hose. Constructed with durable aluminum and rubber materials, this hose assembly ensures efficient high-pressure refrigerant flow for R134a systems.

• Compatible with Nissan Sentra A/C systems
• High-pressure discharge line for R134a refrigerant
• Includes fittings and green O-rings for secure sealing
• Constructed from aluminum and rubber for durability
• OE replacement part without service port or bracket

Product Line Details: Hose Assembly

The Four Seasons Hose Assembly product line focuses on delivering complete hose assemblies tailored for automotive HVAC systems. This line includes components engineered to meet original equipment specifications, providing direct replacements for critical refrigerant lines. The 66431 part is part of this line, offering a discharge hose assembly that integrates fittings and seals to maintain system integrity without additional modifications.

Detailed Product Description

This A/C refrigerant discharge hose assembly is designed to handle high system pressures typical in Nissan Sentra R134a air conditioning systems. The combination of aluminum and rubber materials provides flexibility and resistance to wear, while the included fittings and two green O-rings (part number 24661) ensure a tight, leak-free connection. The hose features a P-nut fitting on the suction end and does not include a service port, switch, bracket, or muffler, aligning with original equipment design for straightforward replacement.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant discharge hoses in Nissan Sentra
• Resolving refrigerant leaks caused by cracked or deteriorated hoses
• Restoring proper high-pressure refrigerant flow in the A/C system
• Eliminating system contamination from failed seals or fittings
• Maintaining system pressure integrity without service port modifications

Installation Notes and Tips

• Ensure system is fully depressurized before removal to avoid refrigerant release
• Verify compatibility with Nissan Sentra model year and A/C system specifications
• Replace both O-rings included to maintain proper sealing
• Inspect fittings and connections for damage prior to installation
• Use proper torque specifications on P-nut fittings to prevent leaks

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66431 is an OE replacement part manufactured to meet or exceed original equipment standards. It includes all necessary fittings and seals to ensure a reliable installation. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty against defects in materials and workmanship, supporting long-term performance in Nissan Sentra HVAC systems.