Review on NGK YE01 Performance Spark Plug by Jacob Schmidt

These glow plugs were just what I needed for my Kubota zero turn mower with the D-1105 engine. Before replacing the glow plugs, I couldn't start in cold weather, even in warm weather. These NGK glow plugs changed the world and now they light up when I change them. In my opinion, NGK makes better sensors, spark plugs, etc. There are cheaper brands but I don't think they meet the same standards as NGK. For my money they are worth the few extra dollars you pay for them.