Four Seasons 66734 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 66734

The Four Seasons Hose Assembly 66734 is designed specifically for select INFINITI models, including the EX35, EX37, G35, G37, Q40, Q60, and QX50. This A/C refrigerant suction hose ensures reliable performance in your vehicle's HVAC system by maintaining proper refrigerant flow and pressure.

• Constructed from durable aluminum and rubber materials
• Features a P-nut fitting on one end and a male springlock on the other
• Compatible with R134a refrigerant type
• Includes necessary gaskets, seals, and fittings for installation
• Equipped with a 13 mm R134a quick disconnect service port on the low side
• O-rings included: one green o-ring [24684], three green o-rings [24610], and one spring [24220]
• OE replacement part ensuring proper fit and function

Four Seasons Hose Assembly Product Line

The Hose Assembly product line by Four Seasons focuses on delivering complete hose solutions for automotive HVAC systems. This line includes assemblies that combine multiple components such as fittings, seals, and service ports to simplify installation and ensure compatibility. The 66734 hose assembly is part of this line, providing a ready-to-install suction line that meets OEM specifications for INFINITI vehicles.

Detailed Product Description

This A/C refrigerant suction hose assembly is engineered to handle the demands of the HVAC system in INFINITI EX35, EX37, G35, G37, Q40, Q60, and QX50 models. The combination of aluminum and rubber materials offers durability and flexibility, while the included fittings and seals ensure a secure, leak-free connection. The P-nut fitting on one end and male springlock on the other provide compatibility with factory components. The integrated 13 mm R134a quick disconnect service port allows for efficient servicing without the need to remove the hose assembly.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant suction hoses
• Resolving refrigerant leaks caused by cracked or deteriorated hoses
• Restoring proper refrigerant flow to improve HVAC system cooling performance
• Addressing issues related to faulty or missing service ports for maintenance
• Ensuring OEM-level fitment and sealing to prevent system contamination

Installation Notes and Tips

• Verify compatibility with your INFINITI model before installation
• Ensure all included O-rings and seals are properly seated to prevent leaks
• Use appropriate tools for P-nut and springlock fittings to avoid damage
• Check the service port for accessibility during routine A/C maintenance
• Follow manufacturer torque specifications for fittings

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66734 is an OE replacement part designed to meet or exceed original equipment standards. It includes all necessary fittings and seals to ensure a proper installation. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.