Four Seasons 78542 A/C Compressor

Reliable A/C Compressor for Ford and Mercury Vehicles

The Four Seasons New Compressor 78542 is designed to restore efficient air conditioning performance in select Ford and Mercury models. Engineered for compatibility with R134a refrigerant, this scroll-type compressor ensures consistent cooling for vehicles like the Ford Explorer and Mercury Mountaineer.

Key Features of Four Seasons New Compressor 78542

• Compatible with R134a refrigerant and Pag 46 oil
• Includes oil pre-filled for immediate installation
• Scroll compressor type for smooth and efficient operation
• 6-groove serpentine pulley with 3.875-inch diameter
• Pin-type electrical terminal with 12V coil voltage
• Includes clutch assembly with a maximum diameter of 3.875 inches
• O-ring type suction and discharge ports with two green o-rings included
• Tangent mount style with a 1.703-inch distance from clutch to mounting flange

About the Four Seasons New Compressor Product Line

The Four Seasons New Compressor line offers brand-new, factory-quality A/C compressors designed to meet or exceed original equipment specifications. This product line focuses on delivering reliable performance and durability for HVAC systems in various vehicle applications. The 78542 model is part of this line, providing a direct replacement solution for Ford and Mercury SUVs requiring a scroll-type compressor compatible with R134a refrigerant.

Detailed Product Description

This Four Seasons New Compressor 78542 is engineered specifically for Ford Explorer, Explorer Sport, Explorer Sport Trac, and Mercury Mountaineer models. It features a scroll compressor design that provides quieter operation and improved efficiency compared to traditional piston compressors. The unit comes pre-filled with Pag 46 oil, compatible with R134a refrigerant, ensuring proper lubrication and system longevity. The 6-groove serpentine pulley and included clutch assembly facilitate seamless integration with the vehicle’s existing belt system. The compressor’s tangent mount and precise clutch-to-mounting flange distance allow for straightforward installation without modification.

Common Issues Addressed by This A/C Compressor

• Loss of cooling performance due to compressor failure
• Clutch slippage or failure affecting A/C engagement
• Refrigerant leaks at suction or discharge ports
• Excessive noise or vibration from worn compressor components
• Incompatibility with R134a refrigerant systems in Ford and Mercury SUVs

Installation Notes and Tips

• Ensure system is evacuated and flushed before installation
• Use compatible Pag 46 refrigerant oil as specified
• Replace O-rings with the included green o-rings to prevent leaks
• Verify clutch alignment and pulley groove compatibility with serpentine belt
• Mount compressor using tangent mount points and torque to manufacturer specifications

Quality Assurance and Warranty Information

The Four Seasons New Compressor 78542 is a brand-new, factory-quality replacement part backed by Four Seasons’ quality standards. It includes all necessary internal components such as the clutch and is pre-filled with compatible oil. While mounting hardware is not included, the compressor is designed for direct fitment on specified Ford and Mercury models. Warranty coverage details should be confirmed with the product documentation or supplier.