Nissens 891789 A/C Compressor

Nissens A/C Compressor for Fiat Applications

The Nissens 891789 A/C compressor is built to OE standards for dependable air conditioning performance in demanding driving conditions. It is engineered for R134A systems and uses PAG 46 oil, making it a direct-fit option for select Fiat models that need stable cooling, low noise, and consistent compressor operation.

• OE-standard compressor construction from Nissens
• Fits R134A air conditioning systems
• Compatible with PAG 46 refrigerant oil
• Oil filled and supplied with clutch included
• CVC compressor design with serpentine belt drive
• 5-groove pulley, 4.33 in. outside pulley diameter
• 12-volt unit with 2-pin connector
• Includes O-rings and uses 2 O-rings

Detailed Product Information

Nissens part number 891789 is a CVC-style A/C compressor designed for OE-level fit and function. Critical components such as the pulley, clutch, hub, bearing, and wobble plate are engineered to support smooth pumping performance, reduced vibration, and durable operation under high-load conditions. This compressor is a strong match for Fiat 124 Spider, Fiat 500L, and Fiat 500 applications that use R134A refrigerant.

This part cross-references UAC CO11531C for the same application.

Vehicle Fitment

• Fits 2017-2020 Fiat 124 Spider, N/A. Compressor filled with shipping oil only, must drain and refill.
• Fits 2014-2020 Fiat 500L, N/A. Compressor filled with shipping oil only, must drain and refill.
• Fits 2015 Fiat 500, N/A. Compressor filled with shipping oil only, must drain and refill.

Common A/C Problems This Part Can Address

• Weak or inconsistent cabin cooling
• Noisy compressor operation from worn internal components
• A/C system failure caused by compressor wear or seizure
• Loss of refrigerant pressure and reduced system output
• Clutch engagement issues on the compressor assembly

Installation Notes and Tips

Before installation, drain the shipping oil and refill the compressor with the correct PAG 46 oil amount for the vehicle system. Verify refrigerant type, pulley alignment, connector fitment, and O-ring condition before charging the system. Always inspect the A/C system for contamination, leaks, and related component wear before replacing the compressor.

Quality Assurance

Nissens manufactures this compressor to OE standards and tests it for performance under high-stress operating conditions. The design focus on the pulley, clutch, hub, bearing, and wobble plate supports consistent operation, low noise, and long service life in Fiat 124 Spider, Fiat 500L, and Fiat 500 applications.