John Deere Part # AM120740 455 diesel glowplug module board. Serial -70000

John Deere 455 diesel glowplug module board. This is a new aftermarket board that fits right in place of the OEM JD board Part # AM120740. Serial 70000 and below. $275. Deere OEM price is $585. YOU MUST TEST YOUR GLOWPLUGS PRIOR TO INSTALLING NEW BOARD. BURNT OUT GLOWPLUGS WILL SHORT OUR BOARD AND CAUSE BOARD FAILURE.