Four Seasons 77363 A/C Compressor

Reliable A/C Compressor for GM and Hummer Vehicles

The Four Seasons Reman Compressor 77363 is designed to restore your vehicle's air conditioning system performance. Engineered for select Cadillac, Chevrolet, GMC, and Hummer models, this remanufactured A/C compressor ensures compatibility and efficient cooling with R134a refrigerant.

• Compatible with R134a refrigerant and Pag 46 oil
• Includes clutch and high-pressure switch for seamless operation
• Features a 4-groove serpentine pulley with a 4.25-inch diameter
• Designed with a tangent mount and pin-type terminal for secure installation
• Remanufactured Nippondenso 10s20f compressor type with oil included

About the Four Seasons Reman Compressor Line

The Four Seasons Reman Compressor line offers remanufactured A/C compressors that meet strict quality standards to provide reliable performance and durability. This product line focuses on restoring original equipment specifications, including coil voltage, clutch dimensions, and mounting configurations, to ensure proper fit and function. The 77363 model is part of this line, delivering a cost-effective solution for maintaining factory-level air conditioning efficiency in compatible GM and Hummer vehicles.

Detailed Product Features and Specifications

This Four Seasons A/C compressor uses R134a refrigerant and is compatible with Pag 46 refrigerant oil, which is included for optimal lubrication. The compressor features a pressure switch and a high-pressure switch included for system protection. It has a 4-groove serpentine pulley with a 4.25-inch diameter and a clutch maximum diameter of 4.25 inches, ensuring proper engagement and power transfer. The coil operates at 12 volts with a single wire lead, and the compressor is a Nippondenso 10s20f type, known for its reliability. The mounting type is tangent mount with a distance from clutch to mounting flange of 0.65625 inches, designed to fit specific GM and Hummer models. Both suction and discharge ports use sealing washers, and the unit comes with slimline washer O-rings for a secure seal. Mounting hardware is not included.

Compatible Vehicles and Applications

• Cadillac Escalade, Escalade ESV, Escalade EXT
• Chevrolet Avalanche, Colorado, Silverado 1500, 2500, 3500, Suburban 1500, 2500, Tahoe
• GMC Canyon, Cheyenne, Sierra 1500, 2500 HD, 3500 HD, Yukon, Yukon XL 1500, Yukon XL 2500
• Hummer H2, H3, H3T

Common Issues Addressed by This Compressor

• Loss of A/C cooling performance due to compressor failure
• Clutch engagement problems causing intermittent A/C operation
• High-pressure switch faults affecting system safety
• Leaks or damage in compressor seals and O-rings
• Wear and tear from extended use in heavy-duty GM and Hummer vehicles

Installation Notes and Tips

Installation requires removal of the old compressor and proper handling of refrigerant according to environmental regulations. This unit may require the use of the original equipment manifold and a deslugger tool (Part 36141) for system cleaning. Ensure the serpentine belt is compatible with the 4-groove pulley design. Since mounting hardware is not included, retain or replace bolts and brackets as needed. Verify electrical connections with the pin-type terminal and confirm the pressure switch wiring is correctly installed.

Quality Assurance and Warranty

The Four Seasons Reman Compressor 77363 undergoes rigorous remanufacturing processes to meet OEM specifications. It includes oil and necessary seals to ensure proper operation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.