{"product_id":"water-seal-damper-647-44366-00-for-yamaha-6-8-9-9-15-hp-outboards-f9-9-f15-t9-9","title":"Sierra Water Seal Damper 18-1834 for Yamaha F9.9, FT9.9, T9.9 Outboard Motors","description":"\u003cp\u003eThe Sierra 18-1834 is a water seal damper built for the cooling system of specific Yamaha 4-stroke outboard motors. It is designed as the dedicated damper seal component in the water pump assembly, positioned separately from the impeller, cup plate, housing, and cover kit parts that make up the rest of the pump. Buyers looking to service the cooling system on a covered Yamaha F9.9, FT9.9, or T9.9 outboard can order this part on its own without needing to replace the full housing or cover kit.\u003c\/p\u003e\u003cp\u003eThis water seal damper carries the Sierra manufacturer part number 18-1834 and fits Yamaha F9.9 outboards from model years 1985-05, FT9.9 outboards from model years 1985-90, and T9.9 outboards from model years 1985-05. Because it is cataloged as a standalone damper seal rather than part of a kit, it is a targeted fix for cooling system service where the housing, cup plate, and cover do not need replacement.\u003c\/p\u003e\u003cp\u003eThe part weighs 1 pound and is categorized as an engine part for the cooling system. Confirm your outboard's model designation (F9.9, FT9.9, or T9.9) and model year against the fitment listed below before ordering, since Yamaha's water pump components differ across model years and designations.\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 18-1834\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Water Seal Damper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Engine Parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282312015\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1 pound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Yamaha F9.9 (1985-05), FT9.9 (1985-90), T9.9 (1985-05)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eYamaha F9.9, model years 1985-05\u003c\/li\u003e\n\u003cli\u003eYamaha FT9.9, model years 1985-90\u003c\/li\u003e\n\u003cli\u003eYamaha T9.9, model years 1985-05\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-1834 water seal damper fit?\u003c\/strong\u003e It fits Yamaha F9.9 outboards from model years 1985-05, Yamaha FT9.9 outboards from model years 1985-90, and Yamaha T9.9 outboards from model years 1985-05.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-1834 a Sierra part number?\u003c\/strong\u003e Yes, 18-1834 is the Sierra manufacturer part number for this water seal damper.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-1834 damper seal fit a Yamaha F9.9?\u003c\/strong\u003e Yes, it fits the Yamaha F9.9 for model years 1985-05.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill 18-1834 fit a Yamaha FT9.9 outboard?\u003c\/strong\u003e Yes, the Sierra 18-1834 water seal damper fits the Yamaha FT9.9 for model years 1985-90.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-1834 work on a Yamaha T9.9?\u003c\/strong\u003e Yes, it fits the Yamaha T9.9 for model years 1985-05.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat part of the outboard does the water seal damper belong to?\u003c\/strong\u003e The 18-1834 is a cooling system component, specifically the damper seal used in the water pump assembly of the covered Yamaha outboard models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-1834 water seal damper weigh?\u003c\/strong\u003e It weighs 1 pound.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-1834 a complete water pump kit or just the seal?\u003c\/strong\u003e The 18-1834 is a standalone damper seal, listed separately from the housing, cup plate, and water pump cover kit parts for these Yamaha models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-1834 fit more than one Yamaha outboard model?\u003c\/strong\u003e Yes, the same Sierra 18-1834 water seal damper is listed for three Yamaha designations: F9.9, FT9.9, and T9.9.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category does the 18-1834 water seal damper fall under?\u003c\/strong\u003e It is categorized as an engine part, specifically for the outboard cooling system.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988088959195,"sku":"SIE-18-1834","price":1.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-1834__88818.1558184624.500.750.jpg?v=1785329192","url":"https:\/\/www.goodvibesmarina.com\/products\/water-seal-damper-647-44366-00-for-yamaha-6-8-9-9-15-hp-outboards-f9-9-f15-t9-9","provider":"Good Vibes Marina","version":"1.0","type":"link"}