NOS Mopar A/C Idler Pulley Some 1964-74 Chrysler Plymouth Dodge Models #2203031Idler Pulley: This is a NOS idler pulley for all the makes & models listed below with factory installed air conditioning. This is a 4 1 2 inch diameter V pulley not a flat sided pulley. This pulley is a new original Mopar part. Years 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974 Models Chrysler: 1964 thru 1971 all with 4 1 2 inch pulley Dodge: 1964 thru 1971 all with 4 1 2 inch pulley Dart; Swinger; Demon; Dart Sport; 1972, 1973,