Michigan State Highway 43

M-43
M-43 highlighted in red
Route information
Maintained by MDOT
Length:	136.723 mi (220.034 km)
Existed:	1919 – present
Major junctions
West end:	BL I-196 in South Haven
	M-40 near Gobles US 131 near Kalamazoo M-37 in Hastings M-50 / M-66 near Woodland I-96 / I-69 near Lansing US 127 near East Lansing
East end:	I-96 near Webberville
Location
Counties:	Van Buren, Kalamazoo, Barry, Eaton, Ingham
Highway system
Michigan State Trunkline Highway System Interstate US State Byways ← M-42 M-44 →

Business M-43
Location:	Grand Ledge
Length:	2.423 mi (3.899 km)
Existed:	November 14, 1959–1968

M-40 near Gobles
US 131 near Kalamazoo
M-37 in Hastings
M-50 / M-66 near Woodland
I-96 / I-69 near Lansing