Sierra Marine Parts Catalog

890 18-3111 WATER PUMP SHAFT SEAL Replaces: 907774 I/O 1972-86 EXCEPT COBRA 18-3206 WATER PUMP HOUSING Replaces: 984744 For: OMC Cobra 18-3108 IMPELLER KEY Replaces: 308928 Fits: Sterndrive models (1968-85) For: Stringer Drive Impeller 18-3086 18-4833 WATER PASSAGE HOUSING (LOWER UNIT) Replaces: 915720 Fits: OMC Cobra (1986-93) without cone clutch 18-3119 WATER PUMP HOUSING Replaces: 983298 18-4837 WATER PASSAGE COVER Replaces: 911734 Fits: OMC Cobra (1986-93) without cone clutch Model Years Impeller 574AMLPWS 1990 18-3058 574AMWXS 1986 18-3058 574APARY 1987 18-3058 574APEPWS 1990 18-3058 574APERGD 1991 18-3058 574APFTC 1987 18-3058 574APKWB 1986 18-3058 574APLAMH 1992 18-3058 574APLRGD 1991 18-3058 574APRAMH 1992 18-3058 574APRGDP 1988 18-3058 574APRMED 1989 18-3058 574APRPWS 1990 18-3058 574APRRGD 1991 18-3058 574APSRC 1987 18-3058 574APWXS 1986 18-3058 574BMLGDP 1988 18-3058 574BPEPWS 1990 18-3058 574BPERGD 1991 18-3058 574BPRGDP 1988 18-3058 584ACPMDA, 584AGPMDA 1994 18-3060 Model Years Impeller 584AMLMED 1989 18-3058 584AMLPWS 1990 18-3058 584APLAMH, 584APLAMK 1992 18-3058 584APLJVB 1993 18-3058 584APLRGD 1991 18-3058 584APRAMH, 584APRAMK 1992 18-3058 584APRJVB 1993 18-3058 584APRMED 1989 18-3058 584APRPWS 1990 18-3058 584APRRGD 1991 18-3058 744APEPWS 1990 18-3058 744APERGD, 744APERGF 1991 18-3058 744BPERGD 1991 18-3058 754APEPWS 1990 18-3058 754APFTC, 754APSRC 1987 18-3058 754BPFTC, 754BPSRC 1987 18-3058 ➀ Except models originally equipped with short impeller or retrofitted with short impeller kit ➁ Except 1992 5.7LE models ➂ Standars pump ➃ Heavy duty pump 18-3141 IMPELLER PLATE Replaces: 313176 110-260 HP I/O 1968-86 EXCEPT COBRA 18-3121 IMPELLER PLATE Replaces: 911703 COBRA 18-3145 PUMP LINER Replaces: 911844 I/O — OMC STERNDRIVE/COBRA - Cooling System 18-3502 WATER PUMP VENT HOSE Replaces: 912614 Fits: OMC Cobra (1986-93) without cone clutch