Shield
Gules, a steel treadway floating bridge throughout between in chief a calumet fesswise and in base a Spanish Castle and fleur-de-lis all Argent.
Crest
That for the regiments and separate battalions of the Michigan Army National Guard: On a wreath of the colors Argent and Gules, a griffin sergeant Or.
Motto
GOOD AS DONE.
Shield
The colors red and white are for Engineer organizations. The calumet refers to the Indian name signifying peace, war, and treaty pipe and symbolically refers to the origin of the Battalion as the Calumet Light Guard at Calumet, Michigan. The three feathers on the pipe represent the fighting branches of service (Artillery, Infantry and Armor) supported by the Engineers. The steel treadway floating bridge represents the bridge in the city of Honingen near Remagen which was constructed across the Rhine River by this Battalion during World War II. The fleur-de-lis symbolizes service in France in World War I and the Spanish Castle is taken from the campaign medal of the Spanish-American War and symbolizes service in that war.
Crest
The crest is that of the Michigan Army National Guard.
The coat of arms was originally approved for the 107th Engineer Combat Battalion on 17 June 1952. It was redesignated for the 107th Engineer Battalion, retroactive to 1 March 1953.