Global Parts 4811750 A/C Hose Assembly

Global Parts 4811750 A/C Hose Assembly

Global Parts 4811750 is an A/C hose assembly for the low-side discharge line application on select 1990 Chevrolet and GMC trucks. It is built for vehicles that use a male nut connection at the discharge line, helping restore proper refrigerant flow in the HVAC system.

• Part number: 4811750
• A/C hose assembly for HVAC hose and pipe service
• Low-side discharge line application with male nut connection
• Cross-references Gates 34789 and UAC HA5728C for the same application
• Compatible with select 1990 Chevrolet C1500, C2500, C35, C3500, K1500, K2500, and K3500 models
• Compatible with select 1990 GMC C1500, C2500, C3500, K1500, K2500, and K3500 models

Application Details

This hose assembly is used in A/C systems where the discharge line routes refrigerant from the compressor to the condenser. On 1990 Chevrolet C1500 and GMC C1500 trucks, as well as related C/K-series heavy-duty applications, the correct hose routing and end connection are important for maintaining system integrity. Global Parts 4811750 matches the listed discharge line configuration with a male nut fitting.

Common Problems It Can Address

• Refrigerant leakage at a worn or damaged discharge hose
• Cracked or deteriorated hose material from age and heat exposure
• Poor A/C performance caused by restricted refrigerant flow
• Failed sealing at the compressor-side hose connection
• Service replacement for a damaged low-side discharge line

Installation Notes

Verify the discharge line routing and male nut connection before installation. Compare the original hose layout, end fittings, and vehicle application against the part number and fitment notes for your 1990 Chevrolet or GMC truck. Proper evacuation, recharge, and leak checking are required after A/C hose replacement.

Quality Assurance

Global Parts 4811750 is cataloged as an A/C hose assembly for HVAC service and is listed with direct cross-reference numbers for the same application, including Gates 34789 and UAC HA5728C.