VAL6 Daystar model heaters manufactured from 2024 lot P to the present come with an inline fuel preheater.  This part is a direct replacement in the event of fuel preheater failure on this generation of Daystar heaters.
   This fuel preheater can also be retrofitted to use with Daystar model heaters manufactured from 2013 lot C up to and including 2023 lot Q with the addition of the new DS-R-17C Relay Cable.  Replacement of the existing Relay Cable with the new DS-R-17C will allow you to connect the preheater and blower fan to the burner control (circuit board).
 
*NOTE: The fuel preheater is only necessary if temperatures drop low enough to cause the diesel to gel in the area where a VAL6 heater is being used or where the diesel is stored. 
 
Manufacture number 50317 107002