{"product_id":"mercury-quicksilver-new-oem-carburetor-diaphragm-kit-21-857005a1-30-65hp-0810","title":"Mercury Quicksilver NEW OEM Carburetor Diaphragm Kit 21-857005A1 30-65HP 0810","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eMercury \/ Quicksilver OEM Carburetor Diaphragm Kit — Part Number 21-857005A1\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003eBrand: Mercury \/ Quicksilver | Condition: New Old Stock (NOS)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eYou are purchasing a genuine Mercury Quicksilver OEM Carburetor Diaphragm Kit, part number \u003cstrong\u003e21-857005A1\u003c\/strong\u003e. This kit restores smooth, reliable fuel delivery to your carburetor's fuel system. This is an authentic factory original part — never installed, never used.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eCondition Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThis is a New Old Stock (NOS) part. The diaphragm kit itself is in new, uninstalled condition. As is common with NOS inventory, the original packaging may show signs of age, including shelf wear, dust, or minor cosmetic blemishes on the bag or box. The part is new and fully functional.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003ePart Number \/ Supersede Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003ePrimary OEM Part Number: \u003cstrong\u003e21-857005A1\u003c\/strong\u003e\u003cbr\u003e\nSupersedes \/ Replaces: \u003cstrong\u003e21-42990A7\u003c\/strong\u003e, \u003cstrong\u003e21-42990A8\u003c\/strong\u003e, \u003cstrong\u003e21-42990A9\u003c\/strong\u003e, \u003cstrong\u003e21-42990A10\u003c\/strong\u003e, \u003cstrong\u003e21-42990A11\u003c\/strong\u003e\u003cbr\u003e\nAftermarket Cross-Reference: Sierra \u003cstrong\u003e18-7817\u003c\/strong\u003e | Red Rhino \u003cstrong\u003eFM-803\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003e21-857005A1\u003c\/strong\u003e is the current updated OEM part number and directly supersedes all earlier diaphragm kit versions listed above. If you have been searching under any of those numbers, this is the correct current replacement.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFits: Mercury \/ Mariner \u003cstrong\u003e30HP, 35HP, 40HP, 45HP, 50HP, 55HP, 60HP, and 65HP\u003c\/strong\u003e 2-stroke outboards\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAlso fits: Force outboard engines in compatible HP range\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003ePlease verify fitment using your motor's model and serial number before ordering, as carburetor type can vary within the same HP range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eWhy Choose OEM Parts?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eOEM parts are engineered and manufactured to exact factory tolerances, ensuring a precise fit, reliable performance, and long service life. Unlike aftermarket alternatives, OEM parts are designed specifically for your Mercury outboard motor — no modifications, no guesswork.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eReturns:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eWe proudly offer hassle-free returns. If you are not completely satisfied with your purchase for any reason, simply open a return request through eBay within \u003cstrong\u003e30 days of purchase\u003c\/strong\u003e and we will take care of you promptly.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cem\u003eThank you for choosing \u003cstrong\u003eQBS Parts Inc\u003c\/strong\u003e! We truly appreciate your business. If you have any issues whatsoever with your order, please give us the opportunity to resolve it before leaving feedback — we are committed to making every transaction a great experience. Please verify fitment using your motor's model and serial number before purchasing. Feel free to message us with any questions — we're here to help!\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eQBS Parts, Inc. — Gardena, CA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":43885754777659,"sku":"QBS 321 Bag 1","price":32.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/qbspartsinc.com\/products\/mercury-quicksilver-new-oem-carburetor-diaphragm-kit-21-857005a1-30-65hp-0810","provider":"My Store","version":"1.0","type":"link"}