URO 1644711275 Diesel Exhaust Fluid (DEF) Heater

Mercedes-Benz DEF Heater Replacement

This URO diesel exhaust fluid (DEF) heater is a direct replacement for select Mercedes-Benz diesel applications that need reliable DEF temperature control. It is built for 2007-2009 Mercedes-Benz GL320 and 2010-2012 Mercedes-Benz GL350 models, making it a practical choice for emission system repair on these vehicles.

Part number 1644711275 is a focused OE-style solution for restoring proper DEF heater function in the emission control system. It is also referenced by part number 164 471 0975 in interchange listings for the same application.

Key Features

• Diesel exhaust fluid (DEF) heater for emission control service
• Fits 2007-2009 Mercedes-Benz GL320
• Fits 2010-2012 Mercedes-Benz GL350
• URO replacement part for European vehicle repair
• Part number 1644711275 for direct catalog matching
• Mounting hardware is not included

Application Details

URO Parts replacement components are produced for European vehicles and are made to meet or exceed OEM specifications. For Mercedes-Benz GL350 and Mercedes-Benz GL320 diesel models, this DEF heater supports the emission system by helping maintain proper fluid temperature during operation. The part number 1644711275 is commonly searched for Mercedes-Benz GL320 DEF heater replacement and Mercedes-Benz GL350 DEF heater replacement needs.

Common Problems This Part Can Address

• DEF heater failure codes
• Cold-weather DEF system performance issues
• Emission system warning lights related to DEF temperature control
• Reduced DEF flow caused by heater malfunction
• Need for an OE-style replacement on Mercedes-Benz diesel models

Installation Notes

Verify the original part number and vehicle application before installation. Inspect the DEF lines, connectors, and surrounding emission components for damage or contamination during service. Because mounting hardware is not included, reuse or source any required fasteners separately as needed for the repair.

Quality Assurance

URO Parts components are positioned as quality replacement parts for European vehicles and are manufactured to meet or exceed OEM specifications. This part number 1644711275 is a direct-fit replacement for the listed Mercedes-Benz GL320 and GL350 applications.