Nissens 91274 Engine Oil Cooler

Nissens 91274 Engine Oil Cooler for Mercedes-Benz

The Nissens 91274 engine oil cooler is built with an aluminum core and compact dimensions for efficient thermal management in the lubrication system. It is a direct-fit replacement for select Mercedes-Benz models, including SL550, GLS550, GL550, CL550, GL450, and ML550 applications.

Key Features

• Aluminum construction for effective heat transfer and corrosion resistance
• Core dimensions: 3.1500 in. height, 2.4400 in. width, and 5.75 in. length
• Engine oil cooler for maintaining stable oil temperatures
• Fits select Mercedes-Benz SL550, GLS550, GL550, CL550, GL450, and ML550 applications
• Cross-reference part numbers include 2781880201 and A2781880201 for the same application

Detailed Description

Nissens 91274 is an engine oil cooler engineered for vehicles that rely on controlled oil temperature to support lubrication performance and engine efficiency. The aluminum core helps transfer heat away from the oil circuit, making this part a practical replacement when servicing the cooling system on Mercedes-Benz models such as the SL550 and GLS550. Nissens develops thermal management components to OE-level standards, and this part reflects that focus on fit, material quality, and application-specific design.

Compatible With 2014-2020 Mercedes-Benz SL550, 2017-2019 Mercedes-Benz GLS550, 2014-2016 Mercedes-Benz GL550, 2014 Mercedes-Benz CL550, 2014 Mercedes-Benz GL450, and 2014 Mercedes-Benz ML550. Part number 91274 is also referenced by 2781880201 and A2781880201.

Common Issues This Part Can Address

• Elevated engine oil temperatures
• Oil cooling system leakage at the cooler assembly
• Reduced thermal control in the lubrication circuit
• Replacement needs after cooler corrosion or internal wear
• Service repair for Mercedes-Benz oil cooling system faults

Installation Notes and Tips

Verify the original cooler dimensions and OE reference before installation to confirm application match. Inspect related oil lines, seals, and mounting surfaces during service, and replace any worn components that could affect sealing or flow. After installation, check for leaks and confirm proper oil temperature control during operation.

Quality Assurance

Nissens is a market-leading manufacturer of thermal and engine efficiency components, and its products are developed and manufactured with a focus on consistent quality. The 91274 engine oil cooler is part of that OE-oriented approach for Mercedes-Benz oil cooling service.