Four Seasons 56921 A/C Suction and Liquid Line Hose Assembly

Overview of Four Seasons Hose Assembly 56921

The Four Seasons Hose Assembly 56921 is designed specifically for Ford Expedition and Lincoln Navigator models. This A/C suction and liquid line hose assembly ensures reliable refrigerant flow and system integrity for vehicles using R134-a refrigerant.

• Compatible with Ford Expedition and Lincoln Navigator
• Includes P-nut fittings on both ends for secure connections
• Designed for high and low system pressure applications
• Comes with included gaskets and green O-rings for proper sealing
• Features a captive o-ring liquid line style and manifold integration
• OE replacement part ensuring proper fit and function

Detailed Product Description

The Four Seasons Hose Assembly 56921 belongs to the Hose Assembly product line, which focuses on delivering complete hose solutions for automotive HVAC systems. This assembly includes both suction and liquid line hoses, equipped with P-nut fittings on each end to provide a secure and leak-resistant connection. It is engineered to handle both high and low pressure within the A/C system, making it suitable for the demanding conditions of Ford Expedition and Lincoln Navigator air conditioning systems.

This hose assembly is compatible with R134-a refrigerant and includes all necessary fittings and gaskets, including multiple green O-rings ([24622], [24615], and [24628]) to ensure a tight seal and prevent refrigerant leaks. The liquid line features a captive o-ring style, and the assembly comes with a manifold but without a muffler or service port. It is an OE replacement part, designed to meet original equipment specifications for reliable performance.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C suction and liquid line hoses
• Resolving refrigerant leaks caused by faulty seals or fittings
• Restoring proper refrigerant flow in Ford Expedition and Lincoln Navigator HVAC systems
• Addressing pressure inconsistencies in high and low side A/C lines
• Upgrading to an OE-quality hose assembly for improved system reliability

Installation Notes and Tips

• Ensure compatibility with Ford Expedition and Lincoln Navigator models before installation
• Inspect all included O-rings and gaskets for damage prior to assembly
• Use proper torque specifications for P-nut fittings to avoid leaks
• Verify system pressure ratings and refrigerant type (R134-a) match vehicle requirements
• Check for absence of service ports and mufflers to confirm fitment

Quality Assurance and Warranty

The Four Seasons Hose Assembly 56921 is manufactured to meet or exceed OEM standards, providing a reliable replacement for your vehicle’s HVAC hoses. This part is an OE replacement, ensuring proper fit and function for Ford Expedition and Lincoln Navigator models. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in material and workmanship.