Turn off that ‘check engine' light and restore proper drivability with Dorman direct replacement DEF heaters. If your diesel vehicle is confined to a limited speed, or in power reduction mode, a common culprit may be a failed original DEF heater. Dorman's DEF heater includes all necessary components for a complete repair and quality tested for a trouble-free performance and longer service life.

• Includes all necessary gaskets and O-rings needed for a complete replacement
• Quality tested to ensure trouble-free installation, performance, and durability
• Properly functioning DEF heaters are required in most states for vehicle inspection
• High-quality plastic construction for added durability