find year of mitsubishi k3d by serial number

[45fmj]

what year is engine in toro groundsmaster with mitsubishi k3d 105686

Maybe K3E 105686 not sure what it came out of it was in toro groundsmaster
but may have came out other?? valves seem to be for k3E

 

[bmaverick]

what year is engine in toro groundsmaster with Mitsubishi k3d 105686

Does the doc help any? 1988 - 2012 .....
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