Four Seasons 198378 A/C Compressor

Overview of Four Seasons New Compressor 198378

The Four Seasons New Compressor 198378 is designed specifically for Audi A6 Quattro, A7 Quattro, and A8 Quattro models. This A/C compressor supports R134a refrigerant and comes pre-filled with compatible Pag 46 oil, ensuring reliable performance and efficient cooling.

• Compatible with Audi A6 Quattro, A7 Quattro, and A8 Quattro
• Refrigerant type: R134a
• Includes clutch and oil pre-filled (Pag 46)
• 6-groove serpentine pulley for optimal belt engagement
• Coil voltage: 12V with coil-less design
• Mounting type: 3 tangent, one on rear head
• Discharge and suction ports use O-ring seals
• Part number: 198378

Detailed Product Features and Specifications

This Four Seasons New Compressor 198378 is a Nippondenso 6SEU14C type compressor engineered for precise fitment on select Audi Quattro models. It features a 6-groove serpentine pulley with a diameter of approximately 125.2 mm (4.9375 inches), designed to match factory belt configurations. The clutch assembly is included, with a maximum diameter of 4.9375 inches and a distance from clutch to mounting flange of 1.234375 inches, ensuring proper engagement and reliable operation.

The compressor is oil-filled with Pag 46 oil, compatible with R134a refrigerant systems, and includes green O-rings for discharge, suction, and additional sealing points. The coil-less 12V coil design and pin-type terminal provide straightforward electrical connections. Mounting hardware is not included, and installation may require the use of original equipment (OE) manifold components.

About the Four Seasons New Compressor Product Line

The Four Seasons New Compressor line offers brand-new, direct replacement compressors designed to meet or exceed OEM specifications. This product line focuses on delivering reliable HVAC performance with components that come pre-filled with the correct refrigerant oil and include necessary clutch assemblies. The New Compressor 198378 is part of this line, providing a ready-to-install solution for Audi Quattro vehicles requiring a precise and durable A/C compressor replacement.

Common Applications and Issues Addressed

• Replacement for failing or noisy A/C compressors in Audi A6 Quattro, A7 Quattro, and A8 Quattro
• Restores proper refrigerant compression and circulation in R134a systems
• Solves clutch engagement problems due to worn or damaged clutch assemblies
• Addresses oil leakage or contamination issues by providing a new oil-filled compressor
• Improves overall HVAC system cooling efficiency and reliability

Installation Notes and Tips

• Verify compatibility with your specific Audi model and year before installation
• Use OE manifold components as recommended for proper sealing and fit
• Ensure the serpentine belt matches the 6-groove pulley design
• Check electrical connections for the pin-type terminal and coil voltage compatibility
• Replace O-rings as needed to prevent refrigerant leaks

Quality Assurance and Warranty

The Four Seasons New Compressor 198378 is a new, factory-quality replacement part manufactured to meet OEM standards. It includes pre-filled refrigerant oil and a clutch assembly to facilitate installation and performance. While mounting hardware is not included, the compressor is designed for direct fitment on compatible Audi Quattro models. Warranty coverage details should be confirmed with the parts provider or manufacturer documentation.