Nissens 891517 A/C Compressor

OE-Standard A/C Compressor

This Nissens A/C compressor is built to OE standards for reliable refrigerant circulation in older Audi and Mercedes-Benz climate systems. Part number 891517 is engineered for controlled pumping performance, low noise, and reduced vibration under demanding operating conditions.

Key Features

• OE-standard compressor construction from Nissens
• 10P17C compressor type with 12-volt operation
• Configured for R134A refrigerant and PAG 46 oil
• Clutch included with O-rings included
• Single-groove V-belt pulley design
• Part number 891517 for direct catalog matching

Detailed Description

Nissens 891517 is an A/C compressor built around critical wear components such as the pulley, clutch, hub, bearing, and wobble plate to support stable operation and consistent refrigerant pumping. It is oil-filled, uses one connector pin, and is specified with a 4.25-inch outside pulley diameter. This compressor is a fitment-based replacement for select Audi 100, Audi 90, Audi 80, Audi 200, Audi Coupe Quattro, Audi V8 Quattro, Audi 5000, and Mercedes-Benz 420SEL, 560SEC, 560SEL, and 560SL applications. This part cross-references UAC CO6003C and Global Parts Distributors LLC 6511816 for the same application.

What It Helps Solve

• Weak or inconsistent cabin cooling
• Noisy compressor operation
• Excessive vibration from worn internal components
• Loss of refrigerant compression performance
• Failure caused by aging clutch or bearing assemblies

Installation Notes and Tips

Compatible With 1985-1994 Audi and Mercedes-Benz applications listed in the fitment data. Fitment includes Audi 100, 100 Quattro, 90, 90 Quattro, S4, 80, 80 Quattro, 200, 200 Quattro, Coupe Quattro, V8 Quattro, and 5000/5000 Quattro, plus Mercedes-Benz 420SEL, 560SEC, 560SEL, and 560SL. The fitment notes state that the compressor is filled with shipping oil only and must be drained and refilled before installation. Verify refrigerant type, oil specification, pulley configuration, and connector count before replacement. Fits 1985-1994 Audi and Mercedes-Benz models listed above, N/A.

Quality Assurance

Nissens manufactures compressors to OE standards and test-proves them for high-stress operation. The design focus on the pulley, clutch, hub, bearing, and wobble plate supports durability, low noise, and stable performance.