OMC Engine Circulator Pumps
Chart notes are listed in (red) at bottom of chart
Model	Year	Circulator	Model	Year	Circulator
2.3	1987-90	18-3578	225 Inboard	1973-74	18-3583
2.5	1982-86	18-3575	230 Inboard	1975-76	18-3583
3	1982-92	18-3575	230	1979-81	18-3583
3.8	1981-86	18-3583	235	1971	18-3583
4.3	1985-92	18-3583	235	1977	18-3584
5	1982-88	18-3583	240	1978	18-3584
5	1989-92	18-3575	245	1972-75	18-3583
5.7	1982-92	18-3583	245 Jet Drive	1972-75	18-3583
5.8	1989-92	18-3575	250 Inboard	1970-74	18-3583
100	1972	18-3575	250	1979	18-3575
100	1973	18-3583	260 Inboard	1975-76	18-3583
120	1965-69	18-3575	260	1979-81	18-3583
120	1972	18-3575	262	1989	18-3583
120	1973-74	18-3583	290 Jet Drive	1974-75	18-3583
120	1975-81	18-3575	305 CID IB	1977-82	18-3583
140 Jet Drive	1973	18-3575	350 CID IB	1977-82	18-3583
140	1973-81	18-3575	350	1988-92	18-3583
165	1972-76	18-3575	351	1992	18-3584
175	1977	18-3584	454 CID IB	1977-80	18-3577
185	1967-80	18-3583	454 CID IB	1982	18-3583
190	1977	18-3584
200	1979-81	18-3583
210	1968-70	18-3583
210 Inboard	1970-72	18-3583
215	1971	18-3583
225	1972-78	18-3583