Nissens 890634 A/C Compressor

Reliable A/C Compressor for Mercedes-Benz Models

The Nissens 890634 A/C compressor is engineered for precise fitment and efficient cooling performance in a wide range of Mercedes-Benz vehicles. Designed to work seamlessly with R134a refrigerant, this compressor supports optimal air conditioning function for models including the C-Class, E-Class, S-Class, and AMG variants.

• Compatible refrigerant type: R134a
• Pre-filled with PAG 46 oil for immediate installation
• Compressor type: 7SEU16C
• Six-groove pulley with a maximum diameter of 4.3307 inches
• First fit design for time-saving installation

Technical Details and Features

The Nissens 890634 A/C compressor is a direct replacement part specifically designed for Mercedes-Benz vehicles such as the C230, E350, S550, and AMG models like the CL63 AMG and ML63 AMG. It uses R134a refrigerant and is pre-filled with PAG 46 oil, ensuring proper lubrication and reducing installation time. The compressor features a 6-groove pulley with a maximum diameter of 4.3307 inches, compatible with the original belt system. The 7SEU16C compressor type is known for its reliability and efficiency in automotive HVAC systems.

Common Applications and Problem Resolution

• Restores proper air conditioning cooling performance
• Replaces worn or damaged compressors causing noise or failure
• Eliminates refrigerant leaks associated with compressor seals
• Resolves clutch engagement issues in the A/C system
• Improves overall HVAC system efficiency in Mercedes-Benz vehicles

Installation Notes and Tips

This compressor is designed as a first fit replacement, which simplifies installation and reduces labor time. It comes pre-filled with PAG 46 oil, so additional oil charging is typically not required. Ensure the A/C system is properly evacuated and recharged with R134a refrigerant during installation. Verify pulley alignment and belt tension to prevent premature wear. Compatible with a wide range of Mercedes-Benz models, including C-Class, E-Class, S-Class, and AMG variants.

Quality Assurance and Warranty

Nissens manufactures this A/C compressor to meet OEM specifications for fit, form, and function. The part number 890634 undergoes rigorous quality control to ensure durability and performance. While specific warranty details may vary, Nissens products generally include a limited warranty covering defects in materials and workmanship to provide confidence in your purchase.