{"product_id":"haywardtristarvitonsealassemblyspx4000sav","title":"Hayward | SPX4000SAV | TriStar Viton Seal Assembly | Replacement Mechanical Seal","description":"\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69866e25-77ec-8324-b841-c66a37e05f13-1\" data-testid=\"conversation-turn-396\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"210e48bf-1d08-46ca-9c2f-3546102bfd98\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-2\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"119\" data-end=\"546\"\u003eThe Hayward SPX4000SAV TriStar Viton Seal Assembly is a replacement mechanical seal kit designed for use with compatible TriStar pool pump models. This seal assembly uses high performance Viton elastomers to form a durable, watertight barrier between the pump’s wet end and motor compartment, helping prevent internal leakage and supporting reliable circulation performance during normal pool operation and routine maintenance.\u003c\/p\u003e\n\u003chr data-start=\"548\" data-end=\"551\"\u003e\n\u003ch2 data-start=\"553\" data-end=\"570\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"571\" data-end=\"1115\"\u003e• Replacement mechanical seal assembly engineered for compatible Hayward TriStar pool pump systems.\u003cbr data-start=\"670\" data-end=\"673\"\u003e• Features Viton elastomer components for enhanced chemical and heat resistance.\u003cbr data-start=\"753\" data-end=\"756\"\u003e• Creates a watertight barrier between the pump wet end and motor housing to prevent leakage.\u003cbr data-start=\"849\" data-end=\"852\"\u003e• Helps maintain consistent internal pressure and stable hydraulic performance.\u003cbr data-start=\"931\" data-end=\"934\"\u003e• Ideal for replacing worn, cracked, or degraded seals during pump service.\u003cbr data-start=\"1009\" data-end=\"1012\"\u003e• Designed to withstand continuous exposure to pool water, pressure cycles, and operating environments.\u003c\/p\u003e\n\u003chr data-start=\"1117\" data-end=\"1120\"\u003e\n\u003ch2 data-start=\"1122\" data-end=\"1143\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-start=\"1144\" data-end=\"1792\"\u003eThe Hayward SPX4000SAV TriStar Viton Seal Assembly is a critical internal component used in select TriStar pool pump models to ensure a dependable, leak-free interface at the wet end where the pump shaft exits toward the motor. Mechanical seals are essential for preventing water from migrating into the motor compartment a condition that can reduce efficiency, accelerate wear, or lead to premature failure of internal components. The use of Viton elastomer materials enhances the seal’s resistance to chemical degradation, heat, and pressure cycling, making it suitable for demanding pool environments with frequent use or high chemical exposure.\u003c\/p\u003e\n\u003cp data-start=\"1794\" data-end=\"2370\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eOver time, mechanical seals experience wear from friction, thermal cycling, and chemical exposure, which can compromise their ability to maintain a watertight barrier. Installing the SPX4000SAV helps restore proper sealing integrity, maintain internal pressure stability, and support efficient circulation performance. This replacement seal assembly is commonly used during pump rebuilds, mechanical seal replacement service, or when addressing observed leakage at the wet end, contributing to long term operational reliability of compatible Hayward TriStar pool pump systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cdiv aria-hidden=\"true\" data-edge=\"true\" class=\"pointer-events-none h-px w-px absolute bottom-0\"\u003e\u003c\/div\u003e\n\u003c!--split--\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48994818851128,"sku":"SPX4000SAV","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/41qQs6E5RBL._AC.jpg?v=1777767749","url":"https:\/\/appaetechpoolsupply.com\/products\/haywardtristarvitonsealassemblyspx4000sav","provider":"AppaeTech Pool Supply","version":"1.0","type":"link"}