Nissens 891768 A/C Compressor

Nissens A/C Compressor 891768

The Nissens 891768 A/C compressor is built to OE standards for dependable cabin cooling in demanding conditions. It is engineered for smooth pumping performance, low noise, and reduced vibration, making it a strong replacement choice for Audi and Porsche applications that require precise air conditioning operation.

Key Features

• OE-standard compressor construction from Nissens
• Refrigerant type: R134A/R1234YF
• 12-volt compressor with clutch included
• 6SAS14C compressor type with serpentine belt drive
• 4-groove pulley design with 4.91 in. outside pulley diameter
• Oil filled and supplied with O-rings included
• 2-pin connector for vehicle-specific electrical connection

Detailed Description

Nissens part number 891768 is an A/C compressor designed for vehicles using modern OE-style HVAC systems. The compressor’s critical components, including the pulley, clutch, hub, bearing, and wobble plate, are engineered for stable operation and durability under high-stress use. This makes it a practical replacement for drivers needing consistent cooling performance in Audi A6 Quattro, Audi A7 Sportback, Audi Q7, Audi Q8, Audi S4, Audi S5, Audi S5 Sportback, Audi A6 allroad, Audi Q8 e-tron, Audi Q8 e-tron Sportback, and Porsche Macan applications.

This part cross-references Audi OE numbers 4K0816803D and 8W0816803A for the same application. The Nissens 891768 compressor is also listed for 2018-2025 Audi and 2019-2025 Porsche fitments, making it a fitment-focused replacement for late-model European HVAC systems.

What It Helps Fix

• Weak or inconsistent A/C cooling
• Noisy compressor operation
• Excessive vibration from a worn compressor assembly
• Loss of refrigerant compression efficiency
• Failure of the clutch or pulley-driven compressor system

Installation Notes and Tips

Compatible With 2020-2025 Audi A6 allroad, 2019-2025 Audi A6 Quattro, 2019-2025 Audi A7 Sportback, 2020-2025 Audi Q7, 2019-2025 Audi Q8, 2018-2025 Audi S4, 2018-2025 Audi S5 Sportback, 2019-2025 Porsche Macan, 2024 Audi Q8 e-tron, 2024 Audi Q8 e-tron Sportback, and 2018-2024 Audi S5. The compressor is filled with shipping oil only and must be drained and refilled to the vehicle’s specified oil charge before installation. Verify refrigerant type, connector style, pulley configuration, and O-ring sealing surfaces before assembly.

Quality Assurance

Nissens manufactures compressors to OE-level standards and tests them for performance under high-stress operating conditions. The design focus on the pulley, clutch, hub, bearing, and wobble plate supports consistent pumping performance and long-term durability in demanding Audi and Porsche HVAC systems.