A properly functioning glow plug is essential to cold-weather starts. This direct replacement for the original part restores proper glow plug function and has been validated for specific vehicle years, make and models. Product Features:Ideal solution - this diesel glow plug controller restores the glow plug power system to original operationIdeal solution - reliable replacement for a controller that has failed due to fatigueDurable construction - made from quality materials to ensure reliable serviceTrustworthy design - backed by a team of engineers and product designers in the United States