The JCB 336F0683 is a genuine 12-volt glow plug designed for a wide range of JCB agricultural and construction machinery. This essential engine component measures 85 mm in length with an M10x1.25 thread, ensuring reliable cold starting performance. It is compatible with numerous JCB models including Loadall (515-40 to 560-80), Backhoe Loaders (3CX, 4CX, 5CX), Fastrac tractors (1115 to 8250), and various Excavators (JS series, 80 series mini excavators), among others.