Nissens 891733 A/C Compressor

Nissens A/C Compressor 891733 for Mercedes-Benz S-Class

The Nissens 891733 A/C compressor is built to OE standards for Mercedes-Benz S-Class applications that demand stable cooling performance under high load. It is engineered with critical compressor components designed to reduce noise and vibration while maintaining consistent pumping efficiency.

Key Features

• OE-standard Nissens A/C compressor for automotive air conditioning service
• Refrigerant type: R134A/R1234YF
• Oil filled: Yes
• Compressor type: 7SES17C
• 12-volt unit with clutch included
• 6-groove pulley with V-belt drive
• Outside pulley diameter: 3.92 in.
• Connector pin quantity: 2
• O-rings included; O-ring quantity: 2

Detailed Description

Nissens part number 891733 is an A/C compressor designed for Mercedes-Benz S450, S450L, S560e, Maybach S550, S500, S500L, S550, S63 AMG, and S63L AMG applications. It is built for vehicles using R134A or R1234YF refrigerant and includes the clutch assembly for a complete compressor replacement. The design focuses on the pulley, clutch, hub, bearing, and wobble plate to support smooth operation, reduced vibration, and durable performance in demanding HVAC systems. This part cross-references Global Parts Distributors LLC (e.g., 6513389, 7513389) for the same application.

What This Compressor Helps Address

• Weak or inconsistent cabin cooling
• Noisy compressor operation from worn internal components
• Compressor clutch engagement problems
• Refrigerant circulation issues in the A/C system
• HVAC performance loss on Mercedes-Benz S-Class vehicles

Installation Notes and Tips

Fits 2018-2020 Mercedes-Benz S450, N/A; 2019-2020 Mercedes-Benz S450L, N/A; 2019-2020 Mercedes-Benz S560e, N/A; 2017 Mercedes-Benz Maybach S550, N/A; 2016-2017 Mercedes-Benz S500, N/A; 2017 Mercedes-Benz S500L, N/A; 2016-2017 Mercedes-Benz S550, N/A; 2016-2017 Mercedes-Benz S63 AMG, N/A; and 2016-2017 Mercedes-Benz S63L AMG, N/A. The compressor is filled with shipping oil only and must be drained and refilled with the correct oil before installation. Verify refrigerant type, connector style, pulley configuration, and system cleanliness before service. For Mercedes-Benz S450 and Mercedes-Benz S550 A/C compressor replacement, confirm the vehicle’s original compressor specification against part number 891733 before installation.

Quality Assurance

Nissens manufactures compressors to OE standards and tests them for operation under high-stress conditions. The brand’s compressor design emphasizes pumping performance, low noise, and long-term durability for Mercedes-Benz S-Class HVAC service.