Nissens 90599 Engine Oil Cooler

Nissens 90599 Engine Oil Cooler for Mercedes-Benz

The Nissens 90599 engine oil cooler is built for Mercedes-Benz applications that rely on stable oil temperatures for consistent engine performance. With an aluminum core and OE-style fitment, it supports thermal control in demanding driving conditions across a wide range of V8 and AMG models.

Key Features

• Aluminum construction for efficient heat transfer and corrosion resistance
• Core dimensions: 3.50 in. height, 4.57 in. width, 8.15 in. length
• Designed with 2 O-rings for sealing at the connection points
• Direct replacement style for Mercedes-Benz oil cooler applications
• Nissens part number 90599 for accurate ordering and catalog matching

Detailed Description

Nissens 90599 is an engine oil cooler engineered for Mercedes-Benz vehicles that need reliable oil temperature management under load. The aluminum core helps transfer heat away from the oil efficiently, while the compact core size supports OE-style packaging in the factory location. This part is a strong match for Mercedes-Benz E320, ML320, S500, CL500, CLK500, and related applications where maintaining oil temperature is critical to engine durability. If you are replacing a worn Mercedes-Benz engine oil cooler, Nissens 90599 provides a direct-fit solution backed by Nissens’ focus on thermal system components.

This part cross-references URO 1121880401 for the same application.

What It Helps Address

• Oil temperature rise during stop-and-go driving
• Heat-related oil breakdown in high-load operation
• Oil seepage at cooler sealing points
• Reduced cooling efficiency from a damaged or clogged cooler
• Thermal stress in Mercedes-Benz V8 and AMG engine applications

Installation Notes and Tips

Verify the vehicle’s original cooler dimensions and connector style before installation. Inspect the sealing surfaces and replace worn O-rings if needed to help prevent leaks. Flush the oil system as appropriate after cooler replacement, and confirm there are no restrictions in the surrounding cooling circuit. Fits 1998-2005 Mercedes-Benz E320, N/A; Fits 1998-2003 Mercedes-Benz ML320, N/A; Fits 2000-2006 Mercedes-Benz S500, N/A; Fits 2003-2006 Mercedes-Benz CLK500, N/A; Fits 2002-2008 Mercedes-Benz G500, N/A.

Quality Assurance

Nissens is a market-leading manufacturer of thermal and engine efficiency components, and this oil cooler is developed and manufactured to the brand’s Genuine Nissens Quality standard. Part number 90599 is listed for a broad range of Mercedes-Benz fitments, including E320 and ML320 applications, helping ensure catalog accuracy when selecting the correct replacement.