Nissens 98344 Exhaust Gas Recirculation (EGR) Valve

Nissens EGR Valve for Mercedes-Benz V8 Applications

The Nissens 98344 Exhaust Gas Recirculation (EGR) valve is built for Mercedes-Benz engines that require controlled exhaust gas recirculation for stable combustion and emissions management. It uses a pneumatic operation type, a steel body, and a 2-pin A-shape connector with a male terminal layout for direct replacement service.

Fits 1998-2010 Mercedes-Benz applications including SLK55 AMG, G500, ML500, R500, C55 AMG, CL500, CLK500, CLK55 AMG, CLS500, E500, S350, S430, S500, SL500, C240, C320, CLK320, E320, ML350, G55 AMG, SLK320, CLK430, ML320, ML55 AMG, CL55 AMG, E430, E55 AMG, S55 AMG, ML430, C280, and C43 AMG.

• Pneumatic EGR valve for exhaust gas recirculation control
• Steel construction for heat-exposed engine bay use
• Connector shape: A-shape
• Male terminal design with 2 connector pins
• Gasket or seal included for installation service
• Mounting hardware not included

Detailed Product Overview

Nissens part number 98344 is an EGR valve engineered to regulate exhaust gas flow back into the intake stream, helping maintain proper combustion behavior and emissions performance. Nissens uses high nickel content alloys and other high-grade materials to improve heat resistance, and each valve is tested for calibration, fit, and operation before release. This part cross-references OE-style numbers such as 1121400060 and A1121400060 for the same application. Nissens 98344 is a direct-fit service part for many Mercedes-Benz V8 and inline-six models, including Mercedes-Benz E500, S500, and ML320 applications.

Common Issues This Part Can Address

• Rough idle caused by restricted or sticking EGR flow
• Emissions faults related to EGR valve performance
• Driveability concerns from inconsistent exhaust gas recirculation
• Check engine light conditions tied to EGR system errors
• Loss of combustion stability from worn valve operation

Installation Notes and Tips

Verify connector style, pin count, and pneumatic actuation before installation. Replace the included gasket or seal during service and inspect adjoining EGR passages, vacuum lines, and intake connections for carbon buildup or leaks. Confirm vehicle-specific fitment by year, make, and model before ordering, especially on Mercedes-Benz SL500, E320, and CLK320 applications.

Quality Assurance

Nissens manufactures this EGR valve with heat-resistant materials and tests it for calibration, fit, and reliable operation to support consistent replacement performance.