Yanmar 119717-77800 Glow Plug Set

This glow plug set contains four units designed for direct injection diesel engines in the Yanmar TNE/TNV series and Komatsu 4D88E series. Each plug operates at 12 volts with a sheathed tip construction for rapid heat-up and extended service life under high compression ratios. The M10 x 1.25 thread interface ensures precise fitment into the cylinder head pre-combustion chamber. The set replaces Yanmar part numbers 119717-77800, 129155-77800, and 129008-77800. It is engineered for non-turbocharged 2.2L displacement engines (88 mm bore, 90 mm stroke) found in compact excavators, wheel loaders, and industrial power units. Installation torque specification is 15-20 Nm. The assembly includes the terminal nut and sealing washer for each unit.