Nissens 891578 A/C Compressor

OE-Standard A/C Compressor

The Nissens 891578 A/C compressor is built to OE standards for dependable air conditioning performance under demanding operating conditions. It is engineered for controlled pumping efficiency, low noise, and reduced vibration in applications such as the Nissan Pathfinder and INFINITI QX4.

Key Features

• OE-standard compressor construction for consistent system performance
• R134A refrigerant and PAG 46 oil compatibility
• Clutch included with a 4-groove serpentine pulley
• 12-volt unit with a CWV618 compressor type
• Pre-filled with oil and supplied with O-rings

Detailed Description

Nissens 891578 is an A/C compressor designed around critical wear components, including the pulley, clutch, hub, bearing, and wobble plate. That design focus supports stable operation, efficient refrigerant pumping, and lower operating noise in HVAC systems that use R134A refrigerant. The compressor is oil-filled, uses PAG 46 oil, and includes a clutch, making it a direct replacement choice for service work on the Nissan Pathfinder and INFINITI QX4.

This part cross-references Global Parts Distributors LLC 6511715 and UAC CO10554JC for the same application. The part number 891578 is also useful when verifying the correct compressor for these fitments.

What It Is Used For

• Restoring cooling output when the compressor no longer pumps refrigerant effectively
• Addressing abnormal compressor noise or vibration during A/C operation
• Replacing a worn clutch or bearing assembly within the compressor unit
• Correcting refrigerant circulation issues in an R134A system

Installation Notes and Tips

Fits 2002-2004 Nissan Pathfinder, N/A. Fits 2001-2003 INFINITI QX4, N/A. This compressor is listed with shipping oil only; drain and refill with the correct PAG 46 oil before installation. Verify the 4-groove serpentine pulley, 1-pin connector, and system refrigerant specification before service. Confirm all seals and O-rings are properly seated during installation.

Quality Assurance

Nissens manufactures compressors to OE standards and test-proves them for high-stress operation. The 891578 is engineered for durability, stable pumping performance, and controlled noise and vibration in everyday HVAC service.