Four Seasons 55803 A/C Refrigerant Discharge / Suction Hose Assembly

Reliable A/C Refrigerant Hose Assembly for Buick, Oldsmobile, Pontiac

The Four Seasons Hose Assembly 55803 is designed to provide dependable performance for your vehicle's HVAC system. Engineered for select Buick, Oldsmobile, and Pontiac models, this A/C refrigerant discharge and suction hose assembly ensures proper refrigerant flow and system integrity.

• Constructed from durable aluminum and rubber materials
• Compatible with R134a refrigerant type
• Includes green o-ring seals for secure connections
• Features a manifold and muffler for noise reduction
• Equipped with dual female o-ring discharge and suction ends
• Includes a switch service port but no fittings or bracket

About the Four Seasons Hose Assembly Product Line

The Hose Assembly line from Four Seasons focuses on delivering precise HVAC hose and pipe replacements that meet original equipment specifications. This product line emphasizes quality materials and design features such as integrated mufflers and manifold components to maintain system efficiency and reduce noise. The 55803 hose assembly is part of this line, offering a direct OE replacement solution for specific GM vehicles.

Detailed Product Description

This A/C refrigerant discharge and suction hose assembly (part number 55803) is constructed with a combination of aluminum and rubber to withstand the pressures and temperatures typical in automotive HVAC systems. It is designed for use with R134a refrigerant and includes all necessary green o-ring seals ([24606], [24608], and [24612]) to ensure leak-free connections. The assembly features dual female o-ring ends on both discharge and suction sides, providing a secure fit. A built-in muffler helps reduce operational noise, while the included manifold supports proper refrigerant distribution. Although fittings and brackets are not included, the hose assembly comes with a switch service port to facilitate system diagnostics and maintenance.

Compatible Vehicles and Common Applications

• Buick LeSabre (1998)
• Oldsmobile Delta 88 (1998)
• Pontiac Bonneville (1998)

This hose assembly is suitable for replacing worn or damaged A/C refrigerant lines in these models, helping to restore proper air conditioning function.

Common Issues Addressed by This Hose Assembly

• Leaks in refrigerant discharge or suction lines
• Reduced A/C system efficiency due to damaged hoses
• Excessive noise from failing muffler components
• Loss of refrigerant pressure from faulty seals
• Incompatibility with R134a refrigerant systems

Installation Notes and Tips

Ensure the vehicle’s A/C system is fully evacuated before removing the old hose assembly. Verify that all included green o-rings are properly seated to prevent leaks. Since fittings and brackets are not included, reuse existing hardware or source compatible parts separately. The switch service port facilitates pressure monitoring during installation and servicing. Proper torque specifications should be followed to avoid damage to the dual o-ring connections.

Quality Assurance and Warranty

Four Seasons Hose Assembly 55803 is manufactured to meet or exceed original equipment standards for fit and function. The inclusion of OEM-style green o-rings and durable materials supports long-term reliability. This part is an exact OE replacement designed for Buick, Oldsmobile, and Pontiac 1998 models. Warranty coverage details should be confirmed with the product supplier or manufacturer.