$19.95
HD Diesel Engine Glow Plug Circuit Tester
Every diesel owner should have one of these in the trunk to quickly test glow plug functions
A 12 volt test light is a very handy tool to have when working on any car but it is particularly important if you have a old diesel. This tool will allow you to quickly determine if there is power getting to your glow plugs, and if not where the power is breaking down.