| ITEM | NAME/DESCRIPTION | PART NO. | BRAND |
| 1926 | Parker ET50C2013 ET50C2013 Parker Et50C2013 Cylinder Body | ET50C2013 | Parker |
| 1927 | Parker ET50C2013A ET50C2013A Parker Et50C2013A Cylinder Body | ET50C2013A | Parker |
| 1928 | Parker ET50C2013B ET50C2013B Parker Et50C2013B Cylinder Body | ET50C2013B | Parker |
| 1929 | Parker ET50C2013-L615 ET50C2013-L615 Parker Et50C2013-L615 Cylinder Body | ET50C2013-L615 | Parker |
| 1930 | Parker ET50C2045 ET50C2045 Parker Et50C2045 Cylinder Body | ET50C2045 | Parker |
| 1931 | Parker ET50C2052 ET50C2052 Parker Et50C2052 Cylinder Body | ET50C2052 | Parker |
| 1932 | Parker ET50C2111 ET50C2111 Parker Et50C2111 Cylinder Body | ET50C2111 | Parker |
| 1933 | Parker ET50C2150 ET50C2150 Parker Et50C2150 Cylinder Body | ET50C2150 | Parker |
| 1934 | Parker ET50C2193 ET50C2193 Parker Et50C2193 Cylinder Body | ET50C2193 | Parker |
| 1935 | Parker ET50C2210 ET50C2210 Parker Et50C2210 Cylinder Body | ET50C2210 | Parker |
| 1936 | Parker ET50C2237 ET50C2237 Parker Et50C2237 Cylinder Body | ET50C2237 | Parker |
| 1937 | Parker ET50C2249 ET50C2249 Parker Et50C2249 Cylinder Body | ET50C2249 | Parker |
| 1938 | Parker ET50C2308 ET50C2308 Parker Et50C2308 Cylinder Body | ET50C2308 | Parker |
| 1939 | Parker ET50C2406 ET50C2406 Parker Et50C2406 Cylinder Body | ET50C2406 | Parker |
| 1940 | Parker ET50C2532 ET50C2532 Parker Et50C2532 Cylinder Body | ET50C2532 | Parker |
| 1941 | Parker ET50C2603 ET50C2603 Parker Et50C2603 Cylinder Body | ET50C2603 | Parker |
| 1942 | Parker ET50C2603A ET50C2603A Parker Et50C2603A Cylinder Body | ET50C2603A | Parker |
| 1943 | Parker ET50C2603A-SP1 ET50C2603A-SP1 Parker Et50C2603A-Sp1 Cylinder Body | ET50C2603A-SP1 | Parker |
| 1944 | Parker ET50C2603B ET50C2603B Parker Et50C2603B Cylinder Body | ET50C2603B | Parker |
| 1945 | Parker ET50C2603C ET50C2603C Parker Et50C2603C Cylinder Body | ET50C2603C | Parker |
| 1946 | Parker ET50C2635 ET50C2635 Parker Et50C2635 Cylinder Body | ET50C2635 | Parker |
| 1947 | Parker ET50C2654 ET50C2654 Parker Et50C2654 Cylinder Body | ET50C2654 | Parker |
| 1948 | Parker ET50C2662P ET50C2662P Parker Et50C2662P Cylinder Body, Linear Pot | ET50C2662P | Parker |
| 1949 | Parker ET50C2701P ET50C2701P Parker Et50C2701P Cylinder Body | ET50C2701P | Parker |
| 1950 | Parker ET50C2741 ET50C2741 Parker Et50C2741 Cylinder Body | ET50C2741 | Parker |
| 1951 | Parker ET50C2778A ET50C2778A Parker Et50C2778A Cylinder Body | ET50C2778A | Parker |
| 1952 | Parker ET50C2783 ET50C2783 Parker Et50C2783 Cylinder Body | ET50C2783 | Parker |
| 1953 | Parker ET50C2783B ET50C2783B Parker Et50C2783B Cylinder Body | ET50C2783B | Parker |
| 1954 | Parker ET50C2784P ET50C2784P Parker Et50C2784P Cylinder Body | ET50C2784P | Parker |
| 1955 | Parker ET50C2800 ET50C2800 Parker Et50C2800 Cylinder Body | ET50C2800 | Parker |
| 1956 | Parker ET50C2859 ET50C2859 Parker Et50C2859 Cylinder Body | ET50C2859 | Parker |
| 1957 | Parker ET50C2926 ET50C2926 Parker Et50C2926 Cylinder Body | ET50C2926 | Parker |
| 1958 | Parker ET50C2938 ET50C2938 Parker Et50C2938 Cylinder Body | ET50C2938 | Parker |
| 1959 | Parker ET50C2997 ET50C2997 Parker Et50C2997 Cylinder Body | ET50C2997 | Parker |
| 1960 | Parker ET50C3044 ET50C3044 Parker Et50C3044 Cylinder Body | ET50C3044 | Parker |
| 1961 | Parker ET50C3123 ET50C3123 Parker Et50C3123 Cylinder Body | ET50C3123 | Parker |
| 1962 | Parker ET50C3194 ET50C3194 Parker Et50C3194 Cylinder Body | ET50C3194 | Parker |
| 1963 | Parker ET50C3194A-SP1 ET50C3194A-SP1 Parker Et50C3194A-Sp1 Cylinder Body | ET50C3194A-SP1 | Parker |
| 1964 | Parker ET50C3273 ET50C3273 Parker Et50C3273 Cylinder Body | ET50C3273 | Parker |
| 1965 | Parker ET50C3280 ET50C3280 Parker Et50C3280 Cylinder Body | ET50C3280 | Parker |
| 1966 | Parker ET50C3292 ET50C3292 Parker Et50C3292 Cylinder Body | ET50C3292 | Parker |
| 1967 | Parker ET50C3375P ET50C3375P Parker Et50C3375P Cylinder Body | ET50C3375P | Parker |
| 1968 | Parker ET50C3391 ET50C3391 Parker Et50C3391 Cylinder Body | ET50C3391 | Parker |
| 1969 | Parker ET50C3772 ET50C3772 Parker Et50C3772 Cylinder Body | ET50C3772 | Parker |
| 1970 | Parker ET50C3784 ET50C3784 Parker Et50C3784 Cylinder Body | ET50C3784 | Parker |
| 1971 | Parker ET50C3839 ET50C3839 Parker Et50C3839 Cylinder Body | ET50C3839 | Parker |
| 1972 | Parker ET50C3843 ET50C3843 Parker Et50C3843 Cylinder Body | ET50C3843 | Parker |
| 1973 | Parker ET50C3883 ET50C3883 Parker Et50C3883 Cylinder Body | ET50C3883 | Parker |
| 1974 | Parker ET50C3910 ET50C3910 Parker Et50C3910 Cylinder Body | ET50C3910 | Parker |
| 1975 | Parker ET50C3981 ET50C3981 Parker Et50C3981 Cylinder Body | ET50C3981 | Parker |
| 1976 | Parker ET50C4001 ET50C4001 Parker Et50C4001 Cylinder Body | ET50C4001 | Parker |
| 1977 | Parker ET50C4001B-L615 ET50C4001B-L615 Parker Et50C4001B-L615 Cylinder Body | ET50C4001B-L615 | Parker |
| 1978 | Parker ET50C4107 ET50C4107 Parker Et50C4107 Cylinder Body | ET50C4107 | Parker |
| 1979 | Parker ET50C4107A ET50C4107A Parker Et50C4107A Cylinder Body | ET50C4107A | Parker |
