When doing replacement or upgrading on 1960 – 1986 Chevrolet C20 Pickup Suburban Panel with 4 headlamps 2 round rectangular, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

 

Low Beam Headlight 1981 – 1986 H4656
High Beam Headlight 1981 – 1986 H4651
Back Up Light 1981 – 1986 1156
Brake 1981 – 1982 1157
1983 – 1986 2057
Dome Light 1981 – 1984 211-2
1985 – 1986 578
Front Side Marker 1981 – 1986 194
Front Turn Signal 1981 – 1982 1157
1983 – 1986 2057
License Plate 1981 – 1986 67
Parking Light 1981 – 1982 1157
1983 – 1986 2057NA
Rear Side Marker 1985 – 1986 168
Rear Turn Signal 1981 – 1982 1157
1983 – 1986 2057
Tail Light 1981 – 1982 1157
1983 – 1986 2057
Luggage Compartment 1985 – 1986 1142
Courtesy 1981 – 1984 1004
Engine Compartment Light 1985 – 1986 1156
Radio Display 1985 – 1986 1893
High Beam and Low Beam Headlight 1981 – 1986 H6054
Back Up Light 1981 – 1986 1156
Brake 1981 – 1982 1157
1983 – 1986 2057
Dome Light 1981 – 1984 211-2
1985 – 1986 578
Front Side Marker 1981 – 1986 194
Front Turn Signal 1981 1157
1982 1157NA
1983 – 1984 2057NA
1985 – 1986 3057NA
License Plate 1981 – 1986 67
Parking Light 1981 – 1982 1157
1983 – 1984 2057NA
1985 – 1986 3057NA
Rear Side Marker 1985 – 1986 168
Rear Turn Signal 1981 – 1982 1157
1983 – 1986 2057
Tail Light 1981 – 1982 1157
1983 – 1986 2057
Luggage Compartment 1985 – 1986 1142
Courtesy 1981, 1983 – 1984 1004
Engine Compartment Light 1985 – 1986 1156
Radio Display 1985 – 1986 1893
High Beam and Low Beam Headlight 1975 – 1978 H6024
Back Up Light 1975 – 1978 199
Brake 1975 – 1978 198
Dome Light 1975 – 1978 578
Front Side Marker 1975 – 1978 97
Front Turn Signal 1975 – 1978 198
License Plate 1975 – 1978 97
Parking Light 1975 – 1978 198
Rear Side Marker 1975 – 1978 168
Rear Turn Signal 1975 – 1978 198
Tail Light 1975 – 1978 198
Courtesy 1975 – 1978 211-2
High Beam and Low Beam Headlight 1979 – 1980 6014
Back Up Light 1979 – 1980 1156
Brake 1979 – 1980 1157
Dome Light 1979 – 1980 211-2
Front Side Marker 1980 194
1979 67
Front Turn Signal 1979 – 1980 1157
License Plate 1979 97
Parking Light 1979 – 1980 1157
Rear Side Marker 1980 1895
1979 194
Rear Turn Signal 1979 – 1980 1157
Tail Light 1979 – 1980 1157
High Beam and Low Beam Headlight 1979 – 1980 H6054
Back Up Light 1979 – 1980 1156
Brake 1979 – 1980 1157
Dome Light 1979 – 1980 211-2
Front Side Marker 1980 194
1979 67
Front Turn Signal 1979 – 1980 1157NA
License Plate 1979 97
Parking Light 1979 – 1980 1157
Rear Side Marker 1980 1895
1979 194
Rear Turn Signal 1979 – 1980 1157
Tail Light 1979 – 1980 1157
High Beam and Low Beam Headlight 1967 6014
Brake 1967 198
Dome Light 1967 211-2
Front Turn Signal 1967 198
License Plate 1967 89
Parking Light 1967 67
Rear Turn Signal 1967 198
Tail Light 1967 198
Courtesy 1967 211-2
Low Beam Headlight 1960 – 1963 H5006
High Beam Headlight 1960 – 1963 H5001
Brake 1963 1034
1960 – 1962 1157
Dome Light 1960 – 1963 211-2
Front Turn Signal 1962 – 1963 1034
1960 – 1961 1156
License Plate 1960 – 1963 67
Parking Light 1962 1034
1963 1157
1960 – 1961 67
Rear Turn Signal 1962 1034
1960 – 1961 1156
1963 1157
Tail Light 1960 – 1963 1157
High Beam and Low Beam Headlight 1960 – 1963 6014
Brake 1960 – 1961 1034
1962 – 1963 1157
Dome Light 1960 – 1963 211-2
Front Turn Signal 1960 – 1961 1156
1962 – 1963 1157
License Plate 1960 – 1963 67
Parking Light 1962 – 1963 1157
1960 – 1961 67
Rear Turn Signal 1960 – 1961 1156
1962 – 1963 1157
Tail Light 1960 – 1963 1157
High Beam and Low Beam Headlight 1964 – 1974 6014
Back Up Light 1969 – 1974 199
Brake 1964 – 1974 198
Dome Light 1964 – 1968, 1974 211-2
Front Side Marker 1974 168
1972 – 1973 194
Front Turn Signal 1966 – 1974 198
1964 – 1965 199
License Plate 1966 – 1968 89
1974 97
Parking Light 1971 – 1974 198
1964 – 1968 67
1969 – 1970 97
Rear Side Marker 1974 194
1972 – 1973 97
Rear Turn Signal 1964 – 1965, 1969 – 1971 1156
1966 – 1968, 1972 – 1974 198
Tail Light 1964 – 1974 198
Courtesy 1964 – 1968 211-2
1973 212-2
1969 – 1972 578
1974 90
Low Beam Headlight 1982 – 1986 H4656
High Beam Headlight 1982 – 1986 H4651
Back Up Light 1982 – 1986 1156
Brake 1982 1157
1983 – 1986 2057
Dome Light 1982 – 1984 211-2
1985 – 1986 578
Front Side Marker 1985 – 1986 168
1982 – 1984 194
Front Turn Signal 1982 1157
1983 – 1986 2057
License Plate 1982 – 1986 67
Parking Light 1982 1157
1983 – 1986 2057NA
Rear Side Marker 1985 – 1986 194
Rear Turn Signal 1982 1157
1983 – 1986 2057
Tail Light 1982 1157
1983 – 1986 2057
Luggage Compartment 1985 – 1986 1142
Courtesy 1985 – 1986 1003
1983 – 1984 1004
Engine Compartment Light 1985 – 1986 1156
Radio Display 1985 – 1986 1893
High Beam and Low Beam Headlight 1982 – 1986 H6054
Back Up Light 1982 – 1986 1156
Brake 1982 1157
1983 – 1986 2057
Dome Light 1982 – 1984 211-2
1985 – 1986 578
Front Side Marker 1985 – 1986 168
1982 – 1984 194
Front Turn Signal 1982 1157NA
1985 – 1986 2057
1983 – 1984 2057NA
License Plate 1982 – 1986 67
Parking Light 1982 1157
1983 – 1986 2057NA
Rear Side Marker 1985 – 1986 194
Rear Turn Signal 1982 1157
1983 – 1986 2057
Tail Light 1982 1157
1983 – 1986 2057
Luggage Compartment 1985 – 1986 1142
Courtesy 1983 – 1986 1003
Engine Compartment Light 1985 – 1986 1156
Radio Display 1985 – 1986 1893
Low Beam Headlight 1981 H4656
High Beam Headlight 1981 H4651
High Beam and Low Beam Headlight 1967 – 1974 6014
1975 – 1978, 1980 H6024
Back Up Light 1980 – 1981 1156
1969 – 1978 199
Brake 1980 – 1981 1157
1967 – 1978 198
Dome Light 1967 – 1968, 1974, 1980 – 1981 211-2
1975 – 1978 578
Front Side Marker 1974, 1980 168
1972 – 1973, 1981 194
1975 – 1978 97
Front Turn Signal 1980 – 1981 1157
1967 – 1978 198
License Plate 1980 – 1981 67
1967 – 1968 89
1974 – 1978 97
Parking Light 1980 – 1981 1157
1971 – 1978 198
1967 – 1968 67
1969 – 1970 97
Rear Side Marker 1975 – 1978 168
1974 194
1972 – 1973 97
Rear Turn Signal 1969 – 1971 1156
1980 – 1981 1157
1967 – 1968, 1972 – 1978 198
Tail Light 1980 – 1981 1157
1967 – 1978 198
Courtesy 1975 – 1978 105
1980 168
1967 – 1968 211-2
1973 212-2
1969 – 1972 578
1974 90
High Beam and Low Beam Headlight 1979 6014
Back Up Light 1979 1156
Brake 1979 1157
Dome Light 1979 211-2
Front Side Marker 1979 67
Front Turn Signal 1979 1157
License Plate 1979 97
Parking Light 1979 1157
Rear Side Marker 1979 194
Rear Turn Signal 1979 1157
Tail Light 1979 1157
High Beam and Low Beam Headlight 1979 H6054
Back Up Light 1979 1156
Brake 1979 1157
Dome Light 1979 211-2
Front Side Marker 1979 67
Front Turn Signal 1979 1157NA
License Plate 1979 97
Parking Light 1979 1157
Rear Side Marker 1979 194
Rear Turn Signal 1979 1157
Tail Light 1979 1157