When doing replacement or upgrading on 1958 – 2018 Chevrolet Impala Limited with halogen capsule headlamps HID, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight 2000 – 2005 9006
2006 – 2013 H11
1977 – 1985 H4656
1958 – 1976 H5006
High Beam Headlight 2000 – 2005 9005
1977 – 1985 H4651
1958 – 1976 H5001
2006 – 2013 H9
High Beam and Low Beam Headlight 1994 – 1996 9004
Front Fog Light 2000 – 2005 893
2006 – 2013 H8/H11/H16
Back Up Light 1958 – 1985 1156
1994 – 1996 2057
2000 – 2013 921
Brake 1959 1034
1958, 1960 – 1982 1157
1983 – 1985, 1994 – 1996 2057
2000 – 2013 3057
Dome Light 1958 – 1960 1004
1964 – 1967, 1977 – 1979 211-2
1974 – 1976, 1980 – 1985, 1994 – 1996 561
1961 – 1963, 1968 – 1973, 2000 – 2013 578
Front Side Marker 1969 – 1970, 1972 – 1985, 2000 – 2013 194
1968, 1971 194NA
1994 – 1996 24
Front Turn Signal 1958 – 1982 1157
1983 – 1985 2057
1994 – 1996 2057NA
2000 – 2005 3457NA
2006 – 2013 4157
License Plate 1966 – 1967 1155
1974 – 1976 168
1977 – 1985, 1994 – 1996, 2000 – 2013 194
1958 – 1965, 1968 – 1971 67
1972 – 1973 97
Parking Light 1958 – 1982 1157
1983 – 1985, 1994 – 1996 2057NA
2000 – 2005 3357NA
2006 – 2013 4157
Rear Side Marker 1968 – 1985, 2000 – 2013 194
1994 – 1996 2057
Rear Turn Signal 1958 – 1960, 1962 – 1963 1034
1961, 1964 – 1982 1157
1983 – 1985, 1994 – 1996 2057
2000 – 2013 3057
Tail Light 1958 – 1963 1034
1964 – 1982 1157
1983 – 1985, 1994 – 1996 2057
2000 – 2013 3057
Center High Mount Stop Light 1994 – 1996 2357
Courtesy 1976 – 1978, 1980 1004
1981 161
2000 – 2005 192
1994 – 1996 562
1968 – 1971, 1979, 1982 – 1984 631
1985 74
1958 – 1963, 1972 – 1975 89
1964 – 1967 90
Engine Compartment Light 1972 – 1979 1003
1964 – 1970, 1980 – 1985 1156
1994 – 1996 562
1958 – 1963 94
Glove Box 1980 – 1985 1891
1974 – 1978 1893
1964 – 1970, 1972 – 1973, 1979 1895
1971, 1994 – 1996, 2000 – 2013 194
1958 – 1963 57
Map Light 1978, 1982 – 1985 1004
1994 – 1996, 2000 – 2005 192
1962 – 1970 562
2006 – 2013 578
Radio Display 1972 – 1977 1816
1958 – 1963 1891
1964 – 1971, 1978, 1981 1893
1979 – 1980, 1982 – 1985 194
Stepwell 2006 – 2013 194
Trunk 1958 – 1971, 1973 – 1983 1003
1984 – 1985 562
1972 89
2000 – 2013 912
1994 – 1996 920
High Beam and Low Beam Headlight 2016 – 2018 9005
2014 – 2015 9012
Back Up Light 2014 – 2018 7440
Brake 2014 – 2018 7443
Daytime Running Light 2016 – 2018 9005
2014 – 2015 9012
Front Side Marker 2014 – 2018 194
Front Turn Signal 2016 – 2018 7443NA
2014 – 2015 7444NA
License Plate 2014 – 2018 194
Parking Light 2014 – 2018 7443NA
Rear Side Marker 2014 – 2018 7443
Rear Turn Signal 2014 – 2018 7443
Inner Tail Light 2014 – 2018 194
Outer Tail Light 2014 – 2018 7443
High Beam and Low Beam Headlight 2014 – 2018 D3S
Back Up Light 2014 – 2018 7440
Brake 2014 – 2018 7443
Front Side Marker 2014 – 2018 194
Front Turn Signal 2014 – 2018 7444NA
License Plate 2014 – 2018 194
Parking Light 2014 – 2018 7443NA
Rear Side Marker 2014 – 2018 7443
Rear Turn Signal 2014 – 2018 7443
Inner Tail Light 2014 – 2018 194
Outer Tail Light 2014 – 2018 7443
Low Beam Headlight 2014 – 2016 H11
High Beam Headlight 2014 – 2016 H9
Front Fog Light 2014 – 2016 H8/H11/H16
Back Up Light 2014 – 2016 921
Brake 2014 – 2016 3057
Dome Light 2014 – 2016 578
Front Side Marker 2014 – 2016 194
Front Turn Signal 2014 – 2016 4157
License Plate 2014 – 2016 194
Parking Light 2014 – 2016 4157
Rear Side Marker 2014 – 2016 194
Rear Turn Signal 2014 – 2016 3057
Tail Light 2014 – 2016 3057
Glove Box 2014 – 2016 194
Map Light 2014 – 2016 578
Stepwell 2014 – 2016 194
Trunk 2014 – 2016 912