Nissens 891577 A/C Compressor

Nissens A/C Compressor for BMW Z4

The Nissens 891577 A/C compressor is built to OE standards for dependable cabin cooling in demanding conditions. It is a direct-fit replacement for select 2006-2008 BMW Z4 applications and is engineered for low noise, reduced vibration, and consistent refrigerant pumping performance.

Key Features

• OE-style A/C compressor from Nissens
• Fits 2006-2008 BMW Z4, N/A
• Refrigerant type: R134A
• Compatible with PAG 46 oil
• Oil filled: Yes
• Clutch included
• 6-groove serpentine pulley
• 4.25 in. outside pulley diameter
• 12-volt electrical system
• 2-pin connector
• O-rings included; O-ring quantity: 2

Detailed Description

Nissens part number 891577 is an A/C compressor designed for BMW Z4 models from 2006 through 2008. It uses a CSV613 compressor type with a serpentine belt drive, 6 pulley grooves, and a clutch assembly included for a complete compressor replacement. The unit is filled with shipping oil only and must be drained and refilled with the correct PAG 46 oil before installation. This part cross-references UAC CO11279C for the same application.

Built around critical compressor components such as the pulley, clutch, hub, bearing, and wobble plate, this Nissens compressor is intended to maintain stable pumping output while limiting noise and vibration. If you are replacing a worn BMW Z4 A/C compressor, 891577 provides the specifications needed for a proper OE-style service repair.

Common Problems This Part Can Address

• Weak or inconsistent cabin cooling
• Compressor noise from worn internal components
• Clutch engagement issues
• Refrigerant circulation loss in the A/C system
• Vibration or belt-drive irregularities at the compressor

Installation Notes and Tips

Fits 2006-2008 BMW Z4, N/A. Drain the shipping oil and refill with the specified PAG 46 oil before charging the system. Replace the included O-rings during installation and verify the 2-pin electrical connection, pulley alignment, and serpentine belt routing before operation. Always evacuate and recharge the system to the correct R134A specification after compressor replacement.

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 in BMW Z4 A/C service applications.