Gilson was a US manufacturer of mowers, tractors, and other outdoor equipment for most of the twentieth century. Founded in 1911, Gilson became a major manufacturer of residential power equipment in the 1960s with the purchase of Gearo, Versch, and Burns. In addition to their own brand, Gilson also manufactured lawn tractors for Montgomery Ward and Ford. Gilson was sold to Outboard Marine Corporation (OMC) in 1987 and merged with OMC's Lawn Boy group. Lawn Boy was sold to Toro in 1989 and the Plymouth, Wisconsin factory ceased production in 1990.
| Model | Power | Mower Deck | Years |
| Pacer 9 | 9 hp | 55" deck | 1961 - 1966 |
| 60-100-01 | 4 hp | 25" deck | 1962 |
| 992 | 4 hp | 25" deck | 1963 |
| 979 | 4 hp | 25" deck | 1964 |
| 980 | 5 hp | 25" deck | 1964 |
| 981 | 4 hp | 25" deck | 1964 |
| 939 | 6 hp | 38" deck | 1965 |
| 940 | 6 hp | 38" deck | 1965 |
| 941 | 9 hp | 38" deck | 1965 |
| 965 | 5 hp | 25" deck | 1965 |
| 966 | 4 hp | 25" deck | 1965 |
| 967 | 4 hp | 25" deck | 1965 |
| 720 | 6 hp | 38" deck | 1966 - 1967 |
| 721 | 6 hp | 38" deck | 1966 - 1967 |
| 722 | 8 hp | 38" deck | 1966 - 1969 |
| 723 | 10 hp | 38" deck | 1966 - 1969 |
| 878 | 4 hp | 25" deck | 1966 |
| 889 | 4 hp | 25" deck | 1966 |
| 890 | 4 hp | 25" deck | 1966 |
| 891 | 5 hp | 25" deck | 1966 |
| 892 | 6 hp | 25" deck | 1966 |
| Pacer 10 | 10 hp | 55" deck | 1966 |
| 750 | 12 hp | 38" deck | 1967 - 1969 |
| 866 | 7 hp | 25" deck | 1967 |
| 868 | 5 hp | 25" deck | 1967 |
| 872 | 4 hp | 25" deck | 1967 - 1970 |
| 873 | 5 hp | 25" deck | 1967 - 1970 |
| 875 | 7 hp | 25" deck | 1967 - 1970 |
| 769 | 10 hp | 42" deck | 1968 - 1970 |
| 770 | 12 hp | 42/48" deck | 1968 - 1969 |
| 805 | 5 hp | 25" deck | 1968 - 1970 |
| 807 | 7 hp | 34" deck | 1968 |
| 810 | 7 hp | 34" deck | 1968 |
| M-7 | 7 hp | 38" deck | 1968 - 1969 |
| 772 | 7 hp | 34" deck | 1969 - 1970 |
| 773 | 7 hp | 34" deck | 1969 - 1970 |
| 806 | 5 hp | 25" deck | 1969 - 1970 |
| M-8 | 8 hp | 38" deck | 1969 |
| 754 | 10 hp | 38" deck | 1970 |
| 755 | 14 hp | 38" deck | 1970 |
| 768 | 8 hp | 34" deck | 1970 |
| 771 | 12 hp | 42/48" deck | 1970 |
| 774 | 14 hp | 42/48" deck | 1970 |
| 809 | 8 hp | 34" deck | 1970 |
| 865 | 8 hp | 34" deck | 1970 |
| 867 | 14 hp | 42/48" deck | 1970 |
| 874 | 6 hp | 25" deck | 1970 - 1971 |
| 52012 | 5 hp | 25" deck | 1971 |
| 52013 | 5 hp | 25" deck | 1971 |
| 52014 | 8 hp | 34" deck | 1971 |
| 52015 | 8 hp | 34" deck | 1971 |
| 52016 | 8 hp | 25" deck | 1971 |
| 52017 | 5 hp | 25" deck | 1971 |
| 52018 | 7 hp | 34" deck | 1971 |
| 52019 | 5 hp | 25" deck | 1971 |
| 52021 | 8 hp | 34" deck | 1971 - 1972 |
| 52022 | 8 hp | 34" deck | 1971 - 1972 |
| 53000 | 10 hp | 38" deck | 1971 - 1972 |
| 53001 | 14 hp | 38" deck | 1971 |
| 53002 | 12 hp | 42/48" deck | 1971 |
| 53003 | 14 hp | 42/48" deck | 1971 |
| 53004 | 14 hp | 42/48" deck | 1971 |
| 53005 | 10 hp | 42" deck | 1971 - 1972 |
| 53006 | 14 hp | 42/48" deck | 1971 |
| 53007 | 12 hp | 42/48" deck | 1971 |
| 52031 | 5 hp | 25" deck | 1972 |
| 52032 | 8 hp | 30" deck | 1972 |
| 52033 | 8 hp | 30" deck | 1972 |
| 53008 | 15 hp | 38" deck | 1972 |
| 53009 | 15 hp | 42/48" deck | 1972 |
| 53010 | 15 hp | 42/48" deck | 1972 - 1974 |
| 52037 | 8 hp | 36" deck | 1973 - 1976 |
| 52038 | 5 hp | 25" deck | 1973 |
| 52039 | 8 hp | 30" deck | 1973 |
| 52040 | 8 hp | 30" deck | 1973 |
| 53012 | 8 hp | 36" deck | 1973 - 1974 |
| 53013 | 10 hp | 42" deck | 1973 |
| 53014 | 16 hp | 42/48" deck | 1973 |
| 53015 | 16 hp | 42/48" deck | 1973 - 1974 |
| 53016 | 16 hp | 42/48" deck | 1973 |
| 53017 | 16 hp | 42/48" deck | 1973 - 1974 |
| 53018 | 10 hp | 42" deck | 1974 - 1975 |
| 53019 | 16 hp | 42/48" deck | 1974 - 1975 |
| 53020 | 16 hp | 42/48" deck | 1974 - 1975 |
| 53021 | 16 hp | 42/48" deck | 1974 - 1975 |
| 53022 | 16 hp | 42/48" deck | 1974 - 1975 |
| 53023 | 10 hp | 42" deck | 1975 - 1985 |
| 53024 | 16 hp | 42/48" deck | 1975 - 1978 |
| 53025 | 16 hp | 42/48" deck | 1975 - 1978 |
| 53026 | 16 hp | 42/48" deck | 1975 - 1978 |
| 53027 | 16 hp | 42/48" deck | 1975 - 1978 |
| 53028 | 16 hp | 42/48" deck | 1975 - 1985 |
| 53029 | 16 hp | 42/48" deck | 1975 |
| 53030 | 16 hp | 42/48" deck | 1975 - 1978 |
| 52045 | 8 hp | 36" deck | 1977 - 1978 |
| 52046 | 10 hp | 36" deck | 1977 |
| 52047 | 10 hp | 42" deck | 1977 |
| 52057 | 8 hp | 36" deck | 1977 - 1978 |
| 53031 | 16 hp | 42/48" deck | 1977 - 1978 |
| 53033 | 10 hp | 42" deck | 1977 |
| 52051 | 11 hp | 36" deck | 1978 - 1980 |
| 52052 | 11 hp | 42" deck | 1978 - 1980 |
| 53038 | 11 hp | 42" deck | 1978 - 1980 |
| 53040 | 16 hp | 42" deck | 1978 - 1980 |
| 53042 | 16 hp | 42/48" deck | 1978 - 1981 |
| 53044 | 16 hp | 42/48" deck | 1978 - 1981 |
| 52058 | 10 hp | 36" deck | 1979 - 1980 |
| 53043 | 16 hp | 42/48" deck | 1979 - 1980 |
| 53045 | 16 hp | 42/48" deck | 1979 |
| 52060 | 11 hp | 38" deck | 1980 |
| 52061 | 11 hp | 36" deck | 1980 - 1981 |
| 52062 | 8 hp | 36" deck | 1980 - 1981 |
| 53050 | 16 hp | 42/48" deck | 1980 - 1981 |
| 53054 | 18 hp | 42/48" deck | 1980 |
| 53055 | 18 hp | 42/48" deck | 1980 - 1981 |
| 52064 | 8 hp | 38" deck | 1981 |
| 52065 | 11 hp | 38" deck | 1981 |
| 52066 | 11 hp | 38" deck | 1981 |
| 53057 | 11 hp | 42" deck | 1981 |
| 53059 | 16 hp | 42/48" deck | 1981 |
| 52072 | 8 hp | 38" deck | 1982 |
| 52073 | 11 hp | 38" deck | 1982 |
| 52074 | 11 hp | 38" deck | 1982 |
| 53061 | 11 hp | 38/42" deck | 1982 |
| 53063 | 16 hp | 38/42" deck | 1982 |
| 53066 | 18 hp | 42/48" deck | 1982 |
| 53067 | 18 hp | 42/48" deck | 1982 |
| 53070 | 18 hp | 42/48" deck | 1982 |
| 53071 | 18 hp | 42/48" deck | 1982 |
| 52080 | 8 hp | 38" deck | 1983 - 1984 |
| 52081 | 11 hp | 38" deck | 1983 - 1987 |
| 52082 | 11 hp | 38" deck | 1983 - 1986 |
| 52083 | 11 hp | 38/42" deck | 1983 - 1984 |
| 52084 | 16 hp | 38/42" deck | 1983 - 1984 |
| 53073 | 18 hp | 42/48" deck | 1983 - 1984 |
| 53074 | 18 hp | 42/48" deck | 1983 - 1984 |
| 52089 | 8 hp | 30" deck | 1984 - 1985 |
| 52090 | 8 hp | 30" deck | 1984 - 1985 |
| 52091 | 11 hp | 30" deck | 1984 - 1985 |
| 52098 | 16 hp | 42" deck | 1984 |
| 52103 | 11 hp | 42" deck | 1985 - 1986 |
| 52104 | 16 hp | 42/48" deck | 1985 - 1986 |
| 52105 | 16 hp | 42/48" deck | 1985 - 1986 |
| 52106 | 8 hp | 30" deck | 1985 - 1987 |
| 52107 | 8 hp | 30" deck | 1985 - 1987 |
| 52108 | 11 hp | 30" deck | 1985 - 1987 |
| 52112 | 11 hp | 42" deck | 1985 - 1986 |
| 53077 | 14 hp | 42/48" deck | 1985 - 1987 |
| 53078 | 14 hp | 42/48" deck | 1985 - 1987 |
| 53079 | 18 hp | 42/48" deck | 1985 - 1987 |
| 53080 | 18 hp | 42/48" deck | 1985 - 1987 |
| 52084D | 16 hp | 42" deck | 1987 |
| 52113 | 8 hp | 38" deck | 1987 |
| 52117 | 11 hp | 38" deck | 1987 |
| 52120 | 12 hp | 30" deck | 1987 |
| 52122 | 12 hp | 38" deck | 1987 |
| 52125 | 12 hp | 42" deck | 1987 |
| 53081 | 14 hp | 42/48" deck | 1987 |
| 53032 | 16 hp | 42/48" deck | unknown |