Four Seasons 56078 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 56078

The Four Seasons Hose Assembly 56078 is designed specifically for low-pressure A/C refrigerant suction line applications. Engineered with durable aluminum and rubber materials, this hose assembly ensures reliable performance for Chevrolet and GMC heavy-duty trucks. It is an OE replacement part compatible with select Sierra and Silverado models.

• Constructed from aluminum and rubber for durability and flexibility
• Equipped with P-nut fittings on both ends for secure connections
• Compatible with R134-a refrigerant systems
• Includes gasket and fittings for a complete installation
• Designed as a low-pressure suction line without a service port or switch
• OE replacement part for Chevrolet and GMC heavy-duty trucks

Detailed Product Description

This Four Seasons Hose Assembly 56078 belongs to the Hose Assembly product line, which focuses on providing reliable and precise HVAC hose and pipe replacements. The assembly features a combination of aluminum and rubber materials that balance strength and flexibility, essential for maintaining the integrity of the A/C refrigerant suction system. Both ends of the hose use P-nut fittings, ensuring a tight and leak-free connection. The included slimline washer O-rings (part number 24404) and fittings simplify installation and help maintain system pressure. This hose is designed for use with R134-a refrigerant and operates under low-pressure conditions, making it suitable for the suction side of the A/C system.

Compatible Vehicles and Applications

This hose assembly is compatible with the following Chevrolet and GMC models:

• Chevrolet Sierra 2500 HD
• Chevrolet Sierra 3500 and 3500 Classic
• Chevrolet Silverado 2500 HD
• Chevrolet Silverado 3500, 3500 Classic, and 3500 HD
• GMC Sierra 2500 HD
• GMC Sierra 3500 and 3500 Classic

Common Issues Addressed by This Hose Assembly

• Leaks in the A/C refrigerant suction line causing reduced cooling efficiency
• Cracks or wear in original suction hoses leading to refrigerant loss
• Corrosion or damage to fittings resulting in poor system pressure
• Failure of OEM suction hoses due to age or environmental exposure
• Replacement of worn or damaged suction lines to restore proper A/C function

Installation Notes and Tips

• Ensure the system is fully evacuated of refrigerant before removal
• Use the included gasket and fittings to secure connections and prevent leaks
• Verify that both P-nut fittings are properly tightened to manufacturer torque specifications
• Inspect O-rings for damage and replace if necessary during installation
• Check for any signs of contamination or debris in the A/C system before reassembly

Quality Assurance and Warranty

The Four Seasons Hose Assembly 56078 is manufactured to meet or exceed OEM specifications for durability and fitment. It is an exact OE replacement part, ensuring compatibility and reliable performance in Chevrolet and GMC heavy-duty trucks. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty against defects in material and workmanship. Always consult product documentation or the manufacturer for precise warranty information.