Global Parts 4812412 A/C Refrigerant Suction Hose

Global Parts A/C Suction Hose for Chevrolet and GMC

Restore proper low-side refrigerant flow with this Global Parts A/C refrigerant suction hose, part number 4812412. It is a direct-fit HVAC hose for select Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Blazer applications, including 2019 Chevrolet Blazer models using HFO-1234yf refrigerant.

Key Features

• A/C refrigerant suction hose for the low-side circuit between the compressor and evaporator
• Built for HVAC hose replacement on select Chevrolet and GMC trucks and SUVs
• Direct application coverage for 2003 and 2005 Silverado 1500 and Sierra 1500 models
• Also fits 2019 Chevrolet Blazer with HFO-1234yf refrigerant
• Global Parts part number 4812412 for catalog and service matching

Product Details

Global Parts 4812412 is an A/C refrigerant suction hose used in the low-side portion of the air conditioning system. In HVAC routing, suction hoses carry refrigerant from the compressor to the evaporator, helping maintain the correct flow path for system operation. This hose is listed for 2003 Chevrolet Silverado 1500, 2005 Chevrolet Silverado 1500, 2003 GMC Sierra 1500, 2005 GMC Sierra 1500, and 2019 Chevrolet Blazer with HFO-1234yf refrigerant. This part cross-references Dorman - HELP 56423 for the same application.

Common Issues This Part Addresses

• Low-side refrigerant hose leakage
• Damaged or deteriorated A/C hose routing
• Loss of refrigerant flow between compressor and evaporator
• HVAC service needs on Chevrolet Silverado 1500 and GMC Sierra 1500 models
• Replacement needs for 2019 Chevrolet Blazer HFO-1234yf A/C service

Installation Notes and Tips

Verify the vehicle year, make, model, and refrigerant type before installation. Match the hose routing to the original low-side line and inspect adjacent A/C components, seals, and connection points for wear or contamination. Proper evacuation and recharge procedures are required after A/C line replacement.

Quality Assurance

Global Parts supplies HVAC service components for vehicle-specific applications. Part number 4812412 is cataloged for confirmed fitment on select Chevrolet and GMC models, including Silverado 1500, Sierra 1500, and Blazer applications.