Four Seasons 56419 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 56419

The Four Seasons Hose Assembly 56419 is designed specifically for Chevrolet and GMC heavy-duty trucks, including the Sierra 1500 HD, Sierra 2500 HD, Sierra 3500, Silverado 1500 HD, Silverado 2500, Silverado 2500 HD, and Silverado 3500 models. This A/C refrigerant suction hose ensures reliable low-pressure refrigerant flow within your vehicle's HVAC system.

• Constructed from durable aluminum and rubber materials
• Equipped with P-nut fittings on both ends for secure connections
• Compatible with R134-a refrigerant systems
• Includes gasket and fittings for proper sealing and installation
• OE replacement part designed for direct fit
• Does not include a service port, switch, bracket, or muffler
• Comes with two slimline washer O-rings (part number 24404)

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly line focuses on providing reliable and precise HVAC hose solutions tailored to specific vehicle applications. The 56419 suction hose assembly is part of this line, offering a direct OE replacement that maintains system integrity and performance for Chevrolet and GMC heavy-duty trucks. This product line emphasizes compatibility and quality materials to support efficient refrigerant flow and system pressure management.

Product Description and Features

This A/C refrigerant suction hose assembly is engineered to handle low-pressure refrigerant flow in R134-a systems. The combination of aluminum and rubber materials provides flexibility and durability, reducing the risk of leaks or damage under typical operating conditions. Both ends feature P-nut fittings, ensuring a secure and leak-resistant connection to the HVAC system. The included gasket and fittings simplify installation and help maintain a proper seal. This hose assembly does not include a service port, switch, bracket, or muffler, focusing solely on the suction line function.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant suction hoses in Chevrolet and GMC heavy-duty trucks
• Resolving low refrigerant pressure issues caused by leaks or hose deterioration
• Eliminating poor A/C performance due to compromised suction lines
• Preventing contamination and moisture ingress in the HVAC system
• Maintaining proper refrigerant flow for efficient air conditioning operation

Installation Notes and Tips

• Ensure compatibility with Chevrolet and GMC Sierra and Silverado heavy-duty models before installation
• Use the included gasket and fittings to achieve a secure, leak-free connection
• Inspect O-rings (two slimline washers included) for damage and replace if necessary
• Do not attempt to install if the hose or fittings show signs of damage
• Follow manufacturer torque specifications for P-nut fittings to avoid overtightening

Quality Assurance and Warranty

The Four Seasons Hose Assembly 56419 is an OE replacement part designed to meet or exceed original equipment specifications. Manufactured with quality aluminum and rubber materials, it ensures durability and reliable performance in low-pressure refrigerant applications. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.