Technical parameters:

Glow plug replacement kit, 12V, assy.2549 

This glow plug replacement kit made to change old type glow plug to the new one, Kyocera glow plug. 

Additionally, it needs to reprogram or buy a new heater control panel and control unit. 

This kit is suitable for air heaters PLANAR 4DM2 and AUTOTERM Air 4D 12V without "GP" symbol in the name of the heater.