{"product_id":"sierra-18-2654-lower-unit-seal-kit-replaces-mercury-26-79831a1-fits-mercury-mariner-70-75-80-90-hp-outboard-gearcase","title":"Sierra 18-2654 Lower Unit Seal Kit, Replaces 26-79831A1, for Mercury\/Mariner Outboard Motors","description":"\u003cp\u003eThe Sierra 18-2654 Lower Unit Seal Kit is a gearcase seal kit built to restore the watertight and oil-tight seal in the lower unit of Mercury and Mariner outboard motors. Lower unit seals wear over time and are a common source of gear lube leaks or water intrusion into the gearcase, both of which can lead to costly gearcase damage if left unaddressed. This kit supplies the key oil seal needed to reseal the lower unit during a rebuild or preventive maintenance service.\u003c\/p\u003e\u003cp\u003eThe kit is built around a round, white rubber seal component, engineered by Sierra to meet or exceed the fit and performance of the original equipment part it replaces. Sierra manufactures replacement marine parts to the same demands as high-horsepower engines see in the field, and supplies OEM engine manufacturers and boat builders with parts daily, so the 18-2654 kit is built to the same standard buyers expect from an original Mercury\/Mariner component.\u003c\/p\u003e\u003cp\u003eKit contents include the part number 18-2008 oil seal (O.E.# 26-56788, qty 1), the core sealing component of this lower unit kit. This kit replaces OEM part number 26-79831A1, so it is a direct fit for outboards originally fitted with that seal.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-2654\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercury Outboard Gearcase Seal Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.12 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999312655\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e 18-2008 Oil Seal (O.E.# 26-56788), Qty 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury and Mariner outboard motors\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e26-79831A1\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2654 Lower Unit Seal Kit fit?\u003c\/strong\u003e The 18-2654 kit is designed for Mercury and Mariner outboard motors, replacing the OEM lower unit seal on those units.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-2654 replace?\u003c\/strong\u003e Sierra part 18-2654 replaces OEM part number 26-79831A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the 18-2654 kit?\u003c\/strong\u003e The kit contains one 18-2008 oil seal, which corresponds to O.E. Part number 26-56788, quantity one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the seal made from?\u003c\/strong\u003e The seal in the Sierra 18-2654 kit is made of rubber, formed in a round shape.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-2654 seal kit?\u003c\/strong\u003e The 18-2654 lower unit seal is white in color.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2654 seal kit weigh?\u003c\/strong\u003e The Sierra 18-2654 Lower Unit Seal Kit weighs 0.12 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2654 a genuine Mercury part or aftermarket?\u003c\/strong\u003e The 18-2654 is a Sierra-brand aftermarket replacement, engineered to meet or exceed the performance of the original OEM part it replaces (26-79831A1), not a Mercury-branded original part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace the lower unit seal with kit 18-2654?\u003c\/strong\u003e This kit is used when the lower unit seal on a Mercury or Mariner outboard is worn or leaking, allowing gear lube to escape or water to enter the gearcase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2654 kit?\u003c\/strong\u003e The UPC for the Sierra 18-2654 Lower Unit Seal Kit is 030999312655.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Sierra manufacture this seal kit to OEM engine manufacturer standards?\u003c\/strong\u003e Yes, Sierra supplies parts to OEM engine manufacturers and boat builders, and the 18-2654 kit is built to meet or exceed the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the 18-2654 kit for other outboard brands besides Mercury and Mariner?\u003c\/strong\u003e The Sierra 18-2654 Lower Unit Seal Kit is specified for Mercury and Mariner outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the shape of the seal in kit 18-2654?\u003c\/strong\u003e The oil seal included in the Sierra 18-2654 kit is round in shape.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988108652763,"sku":"SIE-18-2654","price":71.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2654_lg__56113.1722346545.500.750.jpg?v=1785187970","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2654-lower-unit-seal-kit-replaces-mercury-26-79831a1-fits-mercury-mariner-70-75-80-90-hp-outboard-gearcase","provider":"Good Vibes Marina","version":"1.0","type":"link"}