The LG EBR86771812 Main PCB is the correct replacement for the following model numbers.
Main Pcb Assembly
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DLE3400W
dle3400w-electric-dryer-parts
DLG3401W
dlg3401w
WM3400CW
wm3400cw-washer-parts
EBF61315802
wm3400cw-washer-door-lock
FAA31690705
wm3400cw-washer-shipping-bolt
MAP61913707
wm3400cw-washer-tub-bearing-rear
MDS66290801
wm3400cw-washer-door-boot
WM3400CW