Standard Ignition EFH206 Diesel Exhaust Fluid (DEF) Heater

Diesel Exhaust Fluid Heater for Mercedes-Benz Diesel Models

Standard Ignition EFH206 is a Diesel Exhaust Fluid (DEF) heater built for emission control service on select Mercedes-Benz diesel applications. It is a direct-fit replacement for the original heater assembly on 2007-2009 Mercedes-Benz GL320 and 2010-2012 Mercedes-Benz GL350 models.

Key Features

• Diesel Exhaust Fluid (DEF) heater for emission control repair
• Direct-fit application for Mercedes-Benz GL320 and GL350 diesel models
• 2 connectors with rectangular and oval connector shapes
• 7 terminals with blade and pin terminal types
• Gasket included for sealing at installation points
• O-ring included for serviceable sealing support
• Mounting hardware included for replacement installation

Product Details

The Standard Ignition EFH206 is engineered for DEF system service where heater function is needed to maintain proper fluid handling in cold conditions. It uses two connectors, a 7-terminal layout, and blade-and-pin terminal construction to match the original electrical interface on the listed Mercedes-Benz diesel vehicles. This part cross-references Dorman OE Solutions 904-377 for the same application.

Compatible with 2007-2009 Mercedes-Benz GL320 and 2010-2012 Mercedes-Benz GL350, EFH206 supports emission system repair when the original DEF heater has failed or is no longer operating correctly. The included gasket, O-ring, and mounting hardware help support a complete replacement at the service point.

Common Repair Symptoms

• DEF heater fault codes related to fluid temperature or heater circuit performance
• Cold-weather DEF system issues
• Emission warning lights tied to DEF heater failure
• Reduced DEF system operation after heater degradation
• Service needs on Mercedes-Benz GL320 or GL350 diesel emission components

Installation Notes and Tips

Verify connector shape, terminal count, and vehicle application before installation. Inspect the mating surfaces and replace any damaged seals during service. Confirm the DEF system is clean and free of contamination before installing the new heater assembly. Standard Ignition EFH206 should be matched to the exact year and model listed for proper fitment.

Quality Assurance

Standard Ignition is a recognized name in replacement electrical and emission control components, and EFH206 is built to meet the requirements of the listed Mercedes-Benz diesel applications.