{"product_id":"kohler-genuine-part-87998-toilet-flush-valve-kit-oem-fit","title":"KOHLER GENUINE PART 87998 Toilet Flush Valve Kit - OEM Fit","description":"\u003cp\u003eIn this review the KOHLER GENUINE PART 87998 Toilet Flush Valve Kit is assessed as a direct replacement for select Kohler tanks; it is best for homeowners and plumbers who need an exact OEM fit to maintain original performance. The single biggest reason to buy is its manufacturer design: this is a Kohler Genuine Part made exclusively for Kohler toilet tanks, which helps protect the original warranty and restores factory operation in compatible models. For anyone with a Santa Rosa, Gabrielle, or Kathryn tank the kit promises a true replacement rather than a universal workaround.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKohler Genuine Part:\u003c\/strong\u003e Designed by Kohler engineers to match original components and protect the product warranty when used in supported tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank compatibility:\u003c\/strong\u003e Specifically compatible with Santa Rosa, Gabrielle, and Kathryn tank models, providing a precise fit for those listed tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion resistant:\u003c\/strong\u003e Built to resist corrosion so the internal parts maintain function over time in a wet environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM performance:\u003c\/strong\u003e Intended to restore original flushing performance and sealing behavior when installed in the correct Kohler tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement clarity:\u003c\/strong\u003e Buyers can confirm fit by checking the toilet tank number printed inside the tank to ensure correct selection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is aimed at homeowners, maintenance pros, and plumbers who own or service Kohler toilets listed in the compatibility information, and who prefer an OEM replacement to maintain warranty and original performance. It is especially useful when a tank-specific part is required rather than a generic valve that may not seal or align correctly.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include owners of non-Kohler toilets or Kohler models not listed among the supported Santa Rosa, Gabrielle, and Kathryn tank numbers; universal flush valve kits could be a better fit for other makes or unlisted Kohler models.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExact OEM fit for listed Kohler tanks, reducing compatibility guesswork and helping protect the original warranty.\u003c\/li\u003e\n\u003cli\u003eCorrosion resistant parts are intended to last longer in the tank environment, supporting durability.\u003c\/li\u003e\n\u003cli\u003eRestores factory flushing performance and sealing when installed in compatible models, providing reliable replacement value.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstallation feedback is mixed; some users find it difficult to install, so basic plumbing experience or a pro may be needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKohler Genuine Part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e87998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eSanta Rosa 3323, 3803, 11899; Gabrielle 3322, 14257, 14258, 14286; Kathryn 3324, 14268\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit type\u003c\/td\u003e\n\u003ctd\u003eTank-specific, not universal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorrosion resistance\u003c\/td\u003e\n\u003ctd\u003eYes, corrosion resistant components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003eToilet flush valve replacement for specified Kohler tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe KOHLER GENUINE PART 87998 Flush Valve Kit is a sensible buy for anyone with a listed Santa Rosa, Gabrielle, or Kathryn tank who wants an OEM-quality replacement to restore factory performance and preserve warranty coverage. It delivers clear replacement value and corrosion resistance, though buyers should be prepared for a possibly fiddly installation or arrange professional help if unsure.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I confirm this will fit my toilet?\u003c\/strong\u003e\u003cbr\u003eCheck the toilet tank number printed inside the tank and compare it to the compatible model list before purchasing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a universal flush valve?\u003c\/strong\u003e\u003cbr\u003eNo, this is a Kohler Genuine Part made exclusively for specific Kohler tanks and is not a universal fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this stop leaks?\u003c\/strong\u003e\u003cbr\u003eWhen installed correctly in a compatible tank it should restore proper sealing, though some users report mixed experiences and installation needs care to avoid persistent leaks.\u003c\/p\u003e","brand":"Kohler","offers":[{"title":"Default Title","offer_id":48224935084251,"sku":"B00562D0L8","price":33.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71ka2AWyoVL._AC_SL1500.jpg?v=1770715372","url":"https:\/\/gearmusthave.com\/products\/kohler-genuine-part-87998-toilet-flush-valve-kit-oem-fit","provider":"GearMustHave","version":"1.0","type":"link"}