Good used. Ford part number 18-6664-A Oil pump idler gear cover, shaft may be worn, new shafts are available separately; symmetrical, fits 1932, 1933, 1934, 1935, 1936, 1937, 1938, 1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948 Flathead Ford V8 blocks except V8-60.