Is your John Deere tractor getting hard to start well this could be caused from one or more bad glow plugs
Here is the alternative or closest COMPATIBLE Glow plugs to the NGK Y702R for the following tractors.
John Deere 330 332 430 455 655 755 F915 F925 F935 X495 X595
John Deere Gator 6x4 Diesel with the 3TN66C Yanmar Motor
These were used in the following Yanmar motor that I'm aware of 3TN66C, 3TN66UJ, 3TNA72UJ, 3TNA72UJ3, 3TNA72UK, 3TNE74 Closest Compatible plug for the John Deere # M87919
These will not work in the X495 or X595 with the Yanmar 3TNV76 Motor
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