{"product_id":"front-axle-block-assembly-3900","title":"Polaris 3900 Sport Front Axle Block Assembly, 39-440","description":"\u003cp\u003eThe Polaris 39-440 is the front axle block assembly for the Polaris 3900 Sport pool cleaner.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFit and compatibility\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is the original factory part for the front wheel axle position on the 3900 series cleaner, and it is a separate part from the rear axle block assembly used on the same cleaner.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAn axle block holds the wheel axle in place within the drive assembly, keeping the front wheel aligned as it turns and carrying load through the assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy the position matters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe front and rear axle blocks on the 3900 series are different parts, so installing the wrong one will not correct alignment or play at the other end of the cleaner. Confirm you need the front position before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis listing is the front axle block assembly only, sold as Polaris part number 39-440 for the Polaris 3900 Sport pool cleaner.\u003c\/p\u003e","brand":"Polaris","offers":[{"title":"Default Title","offer_id":48694559375572,"sku":"POL-201-4915","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_c17b99b0-1837-49da-89b8-a2ecab324536.jpg?v=1789765757","url":"https:\/\/www.activepoolsupply.com\/products\/front-axle-block-assembly-3900","provider":"Active Pool Supply","version":"1.0","type":"link"}