Spark Plug for MTU 4000 – Service Part Replacement
X52404500062 Spark Plug, M14×1.25 Thread, 16 mm Hex — replacement for MTU 4000, 16V4000L61 powertrains in generator and marine service. Nickel-alloy center electrode with copper core handles sustained thermal cycling Alumina ceramic insulator rated ≥20 kV dielectric strength Typical swap window arrives around scheduled top-end service intervals Electrode erosion and ceramic tracking signal wear before misfire events Fleet stocking plans supported with replacement interval guidance included on shipment.