When doing replacement or upgrading on 1978 – 1990 Dodge Omni, the bulb size guide is necessary for you to take the reference.

1978 – 1990 Dodge Omni Bulb Size Guide
High Beam and Low Beam Headlight	1978 – 1990	H6054
Back Up Light	1978 – 1990	1156
Brake	1978 – 1990	1157
Dome Light	1978 – 1984, 1989 – 1990	578
Front Side Marker	1978 – 1979	1157
	1980 – 1990	168
Front Turn Signal	1978 – 1990	1157
License Plate	1978 – 1990	168
Parking Light	1978 – 1990	1157
Rear Side Marker	1978 – 1983, 1985 – 1990	168
	1984	194
Rear Turn Signal	1978 – 1980	1156
	1981 – 1990	1157
Tail Light	1978 – 1984	1157
Center High Mount Stop Light	1985	1157
	1986 – 1990	912
Courtesy	1979 – 1981	161
	1985	168
	1984	212-2
	1978, 1982	562
	1990	912
Engine Compartment Light	1984	1003
	1978	912
Glove Box	1980 – 1986	1891
	1978 – 1979	1893
Inner Tail Light	1985 – 1990	194
Map Light	1985	168
	1978 – 1983	562
	1990	578
	1984	912
Outer Tail Light	1985 – 1990	1157
Radio Display	1981 – 1983	158
	1978 – 1979	194
	1980, 1984	73
	1985 – 1990	74
Trunk	1984	1003
	1979, 1982	211-2
	1983	212-2
	1978, 1985, 1988 – 1990	912