{"product_id":"89260-5-6-inch-external-exhaust-flapper-fits-mercruiser-5-inch-and-6-inch-od-through-transom-exhaust-outlets-replaces-18-4458-9-44002","title":"89260 5\/6-Inch External Exhaust Flapper · Fits MerCruiser 5-inch and 6-inch OD through-transom exhaust outlets, Replaces 18-4458, 9-44002","description":"\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e89260 5\/6-Inch External Exhaust Flapper · Fits MerCruiser 5-inch and 6-inch OD through-transom exhaust outlets, Replaces 18-4458, 9-44002\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eGHMarine 5\/6-inch external exhaust flapper\u003c\/span\u003e\u003c\/b\u003e for \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003ethrough-transom\u003c\/span\u003e\u003c\/b\u003e exhaust outlets with \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e5-inch or 6-inch OD\u003c\/span\u003e\u003c\/b\u003e. Primary catalog number \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e89260\u003c\/span\u003e\u003c\/b\u003e; cross-refs \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e18-4458\u003c\/span\u003e\u003c\/b\u003e and \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e9-44002\u003c\/span\u003e\u003c\/b\u003e. There is \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eno verified Mercury OEM parent number\u003c\/span\u003e\u003c\/b\u003e for this family. This is an \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eexternal flapper\u003c\/span\u003e\u003c\/b\u003e on the hull outlet — \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003enot\u003c\/span\u003e\u003c\/b\u003e a rubber bellow and \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003enot\u003c\/span\u003e\u003c\/b\u003e a Y-pipe internal water shutter (807166A1 \/ A2 \/ A3).\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003eCatalog packaging for this family is typically \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e1 flapper with clamp\u003c\/span\u003e\u003c\/b\u003e. Confirm the exact contents against your package photo \/ packing slip before install.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eWhich flapper is this?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003eThis is the larger external rubber flapper for through-transom outlets measuring 5 inch or 6 inch OD. Same job as the 4-inch external flapper family, but a different outlet size — they are not interchangeable.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003eIt is \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003enot\u003c\/span\u003e\u003c\/b\u003e the 4-inch external flapper (\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e12644A1\u003c\/span\u003e\u003c\/b\u003e \/ \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e89250\u003c\/span\u003e\u003c\/b\u003e — GH \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e19B1002\u003c\/span\u003e\u003c\/b\u003e), \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003enot\u003c\/span\u003e\u003c\/b\u003e the 3-inch external flapper (\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e89240\u003c\/span\u003e\u003c\/b\u003e family), and \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003enot\u003c\/span\u003e\u003c\/b\u003e a Y-pipe internal shutter (807166A* — GH 17ST00x).\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eSigns yours is due\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cul style=\"margin:0.4em 0;padding-left:1.25em;font-size:14px;font-family:'Calibri',sans-serif;\"\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eMeasure the through-transom exhaust outlet OD at about 5 or 6 inches — the larger external flapper (89260 family) is cracked, cupped, or missing.\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eFollowing-sea water slap at the big tip outlet; the 4-inch flapper kit will not cover this OD — confirm 5\/6-inch before you order.\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eExternal clamp on the 5\/6-inch tip is gone or cut into the rubber; the flapper no longer seats on the outlet lip.\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eDivert: outlet is clearly 4-inch \/ 12644A1 → GH 19B1002. Internal Y-pipe shutters 807166A1\/A2\/A3 → shutter SKUs, not 23EF445.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eWill it fit my drive?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003eThis flapper is Compatible with marine through-transom external exhaust outlets where the outlet OD is \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e5 inch or 6 inch\u003c\/span\u003e\u003c\/b\u003e and the old part \/ catalog number falls in the \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e89260\u003c\/span\u003e\u003c\/b\u003e family. \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eEngine horsepower alone does not prove fit\u003c\/span\u003e\u003c\/b\u003e — measure the outlet OD and match the old number.\u003c\/span\u003e\u003c\/p\u003e\u003ctable style=\"border-collapse:collapse;border:none;width:100%;margin:14px 0;mso-table-layout-alt:fixed;\" border=\"1\" cellpadding=\"0\" cellspacing=\"0\" width=\"100%\" class=\"MsoTableGrid\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#292F36;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;color:white;\"\u003eBrand\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#292F36;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;color:white;\"\u003eModel \/ Drive\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#292F36;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;color:white;\"\u003eRated HP\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#292F36;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;color:white;\"\u003eStroke\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#292F36;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;color:white;\"\u003eYears\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#292F36;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;color:white;\"\u003eOEM Part No.\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003eMerCruiser \/ Mercury\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003eThrough-transom external exhaust · 5-inch OD outlet\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003eOutlet-OD-driven\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003eN\/A\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003eBy hull outlet \/ old part — not HP\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003e89260 \/ 18-4458 \/ 9-44002\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#f5f5f5;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003eMerCruiser \/ Mercury\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#f5f5f5;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003eThrough-transom external exhaust · 6-inch OD outlet\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#f5f5f5;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003eOutlet-OD-driven\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#f5f5f5;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003eN\/A\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#f5f5f5;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003eBy hull outlet \/ old part — not HP\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#f5f5f5;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003e89260 \/ 18-4458 \/ 9-44002\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003eIf your outlet is 4 inch (GH 19B1002) or 3 inch, or your old shutter is an 807166A* Y-pipe piece, stop — this listing is the wrong family.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eOEM \u0026amp; swap numbers\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003ePrimary catalog number is \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e89260\u003c\/span\u003e\u003c\/b\u003e. No verified Mercury OEM parent number for this SKU. Cross-ref numbers below identify the same 5\/6-inch external flapper family.\u003c\/span\u003e\u003c\/p\u003e\u003ctable style=\"border-collapse:collapse;border:none;width:100%;margin:14px 0;mso-table-layout-alt:fixed;\" border=\"1\" cellpadding=\"0\" cellspacing=\"0\" width=\"100%\" class=\"MsoTableGrid\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#292F36;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;color:white;\"\u003eType\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#292F36;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;color:white;\"\u003ePart Number\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#292F36;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;color:white;\"\u003eNotes\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003ePrimary catalog\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003e89260\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003e5\/6-inch external exhaust flapper · typically with clamp\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#f5f5f5;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003eCross-ref\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#f5f5f5;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003e18-4458\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;background:#f5f5f5;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003e5\/6-inch external flapper family\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003eCross-ref\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003e9-44002\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd style=\"border:solid windowtext 1.0pt;padding:1.0pt 1.8pt 1.0pt 1.8pt;vertical-align:top;white-space:nowrap;\" nowrap\u003e\u003cp style=\"margin:0;line-height:normal;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-size:8.0pt;font-family:'Calibri',sans-serif;\"\u003e5\/6-inch external flapper family\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eWrong part? Read before you order\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cul style=\"margin:0.4em 0;padding-left:1.25em;font-size:14px;font-family:'Calibri',sans-serif;\"\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eNOT a 4-inch external flapper (\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e12644A1\u003c\/span\u003e\u003c\/b\u003e \/ \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e89250\u003c\/span\u003e\u003c\/b\u003e — GH \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e19B1002\u003c\/span\u003e\u003c\/b\u003e)\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eNOT a 3-inch external flapper (\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e89240\u003c\/span\u003e\u003c\/b\u003e family)\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eNOT a Y-pipe internal water shutter (\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e807166A1\u003c\/span\u003e\u003c\/b\u003e \/ \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e807166A2\u003c\/span\u003e\u003c\/b\u003e \/ \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e807166A3\u003c\/span\u003e\u003c\/b\u003e — GH 17ST00x)\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eNOT a rubber exhaust bellow \/ transom boot (\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e8M0124227\u003c\/span\u003e\u003c\/b\u003e — GH 17B1003)\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eNOT selected by engine HP or displacement alone — measure outlet OD\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eWhat ships in the box\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cul style=\"margin:0.4em 0;padding-left:1.25em;font-size:14px;font-family:'Calibri',sans-serif;\"\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003e1 × 5\/6-inch external exhaust flapper (89260 family)\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eClamp: catalog packaging typically includes 1 clamp — confirm against your package before install\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eOften ordered with related SKUs\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cul style=\"margin:0.4em 0;padding-left:1.25em;font-size:14px;font-family:'Calibri',sans-serif;\"\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eNeed 4-inch external flapper → GH \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e19B1002\u003c\/span\u003e\u003c\/b\u003e (12644A1 family)\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eNeed Y-pipe internal shutters 807166A3 → GH \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e17ST004\u003c\/span\u003e\u003c\/b\u003e \/ \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e17ST005\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eNeed twin-engine 4-inch bellows + A3 shutters → GH \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e18BS002\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eNeed transom exhaust bellow → GH \u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003e17B1003\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eInstall tips on the through-transom outlet\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003e\u003ci\u003eExternal hull outlet work. If you are not comfortable working at the transom exhaust outlet, use a marine shop. Do NOT use bellows adhesive or a bellows expander — those are for rubber bellow boots, not this flapper. Do NOT pull the sterndrive to install this part.\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\u003col style=\"margin:0.4em 0;padding-left:1.35em;font-size:14px;font-family:'Calibri',sans-serif;\"\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eConfirm outlet OD is 5 inch or 6 inch and the old number is in the 89260 \/ 18-4458 \/ 9-44002 family (not 4 inch \/ 3 inch \/ 807166A*).\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eRemove the old flapper and clamp; clean the outlet lip.\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eSeat the new flapper fully on the outlet; install the clamp if supplied in your package; tighten securely.\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eCheck free movement of the flapper — it must open with exhaust flow and close when reverse water pressure hits the outlet.\u003c\/li\u003e\n\u003cli style=\"margin:0.3em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\"\u003eRun and inspect for spray \/ leaks at the outlet before returning the boat to service.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eFAQ\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eIs this a bellow or a flapper?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003eFlapper only. It mounts on a through-transom external exhaust outlet. It is not a sterndrive exhaust bellow and does not use bellows adhesive or an expander tool.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eWill it fit my MerCruiser by horsepower?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003eNo. Fit is by outlet OD (5 inch or 6 inch) and the 89260 part family. Horsepower and displacement alone do not prove fit.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eIs this the same as 19B1002 \/ 12644A1?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003eNo. 19B1002 is the 4-inch external flapper family. This listing is 5\/6-inch only.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eIs this the same as 807166A1 \/ A2 \/ A3?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003eNo. Those are Y-pipe internal water shutters. This SKU is an external through-transom flapper on the hull outlet.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eWhat comes in the box?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003eOne 5\/6-inch external flapper. Catalog packaging typically also includes one clamp — confirm against your package photo \/ packing slip.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003eDo I need bellows adhesive or an expander?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003eNo. That is for rubber bellow boots such as GH 17B1003. This flapper seats on the outlet and is retained with a clamp when supplied.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"color:#ff7c40;font-family:'Calibri',sans-serif;font-size:14px;\"\u003ePlease note\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp style=\"margin:0.4em 0;line-height:1.55;font-size:14px;font-family:'Calibri',sans-serif;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family:'Calibri',sans-serif;font-size:14px;\"\u003eAftermarket replacement part. Not affiliated with engine manufacturers named above. \"Compatible with\", \"Replaces\", and cross-ref numbers identify the 5\/6-inch external flapper family — always confirm outlet OD, old part number, and package contents before ordering.\u003c\/span\u003e\u003c\/p\u003e","brand":"GHMarine","offers":[{"title":"Default Title","offer_id":51289106186486,"sku":"23EF445","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/gh-marine.com\/products\/89260-5-6-inch-external-exhaust-flapper-fits-mercruiser-5-inch-and-6-inch-od-through-transom-exhaust-outlets-replaces-18-4458-9-44002","provider":"GH Marine","version":"1.0","type":"link"}