Four Seasons 78496 A/C Compressor

Overview of Four Seasons New Compressor 78496

The Four Seasons New Compressor 78496 is designed specifically for Mitsubishi Galant models requiring a reliable HVAC component. This new A/C compressor supports R134a refrigerant and comes equipped with essential features to maintain efficient air conditioning performance.

• Compatible refrigerant type: R134a
• Includes oil filled with PAG 46 compatible refrigerant oil
• Heat switch type with included switch
• 5-groove serpentine pulley for optimal belt engagement
• Pin terminal type with 12V coil voltage and 1 wire lead coil clock position
• Compressor type: MSC90C with tangent mount
• Includes clutch with a maximum diameter of 3.6875 inches
• O-ring sealed suction and discharge ports with included green O-rings
• Mount distance: 68.326 mm (2.6875 inches from clutch to mounting flange)

Four Seasons New Compressor Product Line Details

The Four Seasons New Compressor line offers brand-new, direct replacement compressors engineered to meet or exceed original equipment specifications. The New Compressor 78496 is part of this line, providing a complete assembly including clutch and heat switch, designed to simplify installation and ensure compatibility with Mitsubishi Galant vehicles using R134a refrigerant systems.

Detailed Product Description

This Four Seasons A/C compressor 78496 is engineered for Mitsubishi Galant models requiring a MSC90C compressor type. It features a 5-groove serpentine pulley with a diameter of approximately 93.65 mm (3.6875 inches), designed for smooth belt operation. The compressor includes a clutch assembly with a maximum diameter of 3.6875 inches and a heat switch to regulate system operation. Both suction and discharge ports use O-ring seals with included green O-rings (part numbers 24131 and 24679) to ensure leak-free connections. The compressor is oil filled with PAG 46 compatible oil, supporting system lubrication and longevity. The mounting type is tangent mount with a mount distance of 68.326 mm, matching OEM specifications for proper fitment.

Common Applications and Issues Addressed

• Replacement for failing or noisy A/C compressors in Mitsubishi Galant vehicles
• Restores proper refrigerant compression and circulation in R134a systems
• Resolves clutch engagement problems with included clutch assembly
• Fixes refrigerant leaks at suction or discharge ports with new O-rings
• Addresses overheating or cycling issues with included heat switch

Installation Notes and Tips

• Ensure compatibility with Mitsubishi Galant models using R134a refrigerant
• Verify mounting distance and pulley groove count before installation
• Use proper torque specifications for tangent mount installation
• Replace mounting hardware separately as it is not included
• Check electrical connections for pin terminal and 12V coil compatibility

Quality Assurance and Warranty

The Four Seasons New Compressor 78496 is a new, direct replacement part manufactured to meet OEM standards. It includes essential components such as clutch and heat switch to ensure proper function. While mounting hardware is not included, the compressor is supplied oil filled and ready for installation. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.