{"product_id":"hayward-spx1600z4-housing-cap-screw","title":"Hayward SPX1600Z4 Housing Cap Screw","description":"\u003cp\u003e\u003cstrong\u003eWhat This Part Is Used For\u003c\/strong\u003e\u003cbr\u003e The Hayward SPX1600Z4 is a housing cap screw used to secure the pump housing components together. It holds the wet end assembly tightly against the seal plate and motor. This fastener is critical to maintaining a sealed pump body. \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy This Part Matters\u003c\/strong\u003e\u003cbr\u003e Missing or damaged cap screws can cause housing separation and water leaks. Uneven clamping pressure may also lead to gasket failure. Replacing worn fasteners helps maintain proper sealing and pump integrity. \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey Features and Specifications\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eManufacturer part number SPX1600Z4\u003c\/li\u003e \u003cli\u003ePump housing cap screw\u003c\/li\u003e \u003cli\u003eUsed on compatible Hayward pump models\u003c\/li\u003e \u003cli\u003eSecures wet end assembly\u003c\/li\u003e \u003cli\u003eStructural fastener component\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eInstallation and Fitment Guidance\u003c\/strong\u003e\u003cbr\u003e Tighten screws in an even pattern to ensure proper gasket compression. Inspect threads and replace damaged hardware as needed. Confirm by manufacturer part number before ordering. \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eAbout the Hayward Brand\u003c\/strong\u003e\u003cbr\u003e Hayward builds a full line of pool pumps, filters, heaters, automation, cleaners, and chlorination systems. Their pump assemblies are engineered for serviceability and component replacement. Proper hardware installation protects against leaks and misalignment. Genuine Hayward screws ensure proper fit with compatible housings. \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCommon Service Context\u003c\/strong\u003e\u003cbr\u003e Housing screws are often replaced during wet end rebuilds or after corrosion from outdoor exposure. Techs commonly inspect these when tracking down small housing leaks. \u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52050166481170,"sku":"SPX1600Z4","price":5.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/2279\/1186\/files\/HPPSPX1600Z4_0.jpg?v=1771892145","url":"https:\/\/www.aquaterrabackyard.com\/products\/hayward-spx1600z4-housing-cap-screw","provider":"Aqua Terra Backyard","version":"1.0","type":"link"}