Global Parts 5511247 A/C Compressor

Reman A6 A/C Compressor for Classic GM and Mercedes-Benz

Restore cabin cooling with this remanufactured Global Parts A/C compressor, part number 5511247. Built as an A6-style compressor with a 12-volt coil, one-groove pulley, and clutch included, it is a direct-fit HVAC replacement for a wide range of classic Chevrolet, GMC, Buick, Oldsmobile, Pontiac, Lincoln, Jaguar, Volvo, and Mercedes-Benz applications.

Global Parts Reman Compressor line focuses on remanufactured air conditioning components for older vehicle platforms where correct compressor style and fitment matter. Part number 5511247 is listed for numerous GM truck, van, and passenger car applications, including Chevrolet G20, Chevrolet C10, and GMC G3500 models.

Key Features

• A6 compressor type for many vintage OEM-style A/C systems
• 12-volt coil voltage
• One-groove pulley configuration
• Clutch included
• Remanufactured compressor for HVAC service replacement
• Fits a broad range of classic Chevrolet, GMC, Buick, Oldsmobile, Pontiac, Mercedes-Benz, Jaguar, Lincoln, and Volvo vehicles

Detailed Description

This Global Parts 5511247 reman A/C compressor is built for vehicles that use the A6 compressor design and a single-groove drive setup. It is listed across many fitments, including 1978-1989 Chevrolet G20 and G30, 1979-1983 GMC C1500 and K1500, and 1981-1985 Mercedes-Benz 380SL applications. The included clutch and 12-volt coil support straightforward replacement of worn or failed compressor assemblies in original-style HVAC systems.

For fitment-based searches, this part is commonly referenced for classic truck and van air conditioning repair, including Fits 1978-1983 Chevrolet C10, N/A; Fits 1979-1983 GMC C2500, N/A; and Fits 1978-1981 Pontiac Firebird, N/A. This part cross-references UAC CO2224N and Four Seasons 57092 for the same application.

Common Problems This Part Can Address

• No cold air from the A/C system
• Compressor clutch engagement failure
• Excessive compressor noise or seizure
• Loss of refrigerant system pressure due to compressor wear
• Poor cooling performance in older R-12/R-134a converted systems

Installation Notes and Tips

Consult the manufacturer’s oil guidelines before installation. Global Parts notes that gpd 55 series compressors ship with shipping oil only, so the compressor must be filled with the correct oil type and amount before use. Verify pulley groove count, clutch voltage, and compressor style against the original unit before installation. Always inspect the system for contamination, flush as needed, and replace any damaged seals or related A/C components during service.

Quality Assurance

This remanufactured compressor is built for replacement use in confirmed vehicle applications and is supported by Global Parts’ reman compressor product line. Proper oil fill and system preparation are required to help ensure correct operation after installation.