{"product_id":"syunsxoon-dexter-vortex-replacement-caps-2-pack-81143-48355v-threaded-with-o-ring-seal","title":"SyunsXoon Dexter Vortex replacement caps 2-pack (81143\/48355v) — threaded with O-ring seal","description":"\u003cstrong\u003eDurable threaded replacement caps for Dexter Vortex hubs — two 81143\/48355v caps that restore a sealed, grease-safe hub assembly for compatible 1250–1750 lb trailer wheels.\u003c\/strong\u003e\n\n\u003cp\u003eIf a worn or missing dust cap is letting grease escape or grit enter your trailer wheel hub, these SyunsXoon replacement caps offer a straightforward fix. Designed for Dexter Vortex-style hubs, the set includes two threaded 81143\/48355v caps made from resilient hard plastic with integrated O-ring sealing. They’re sized for common 5-bolt Vortex hub kits found on many small boat trailers, utility trailers, and light-duty hauling setups.\u003c\/p\u003e\n\n\u003ch3\u003eWhich hubs and trailer weights will these replacement caps fit?\u003c\/h3\u003e\n\u003cp\u003eThese caps are built for Dexter Vortex hub assemblies that accept the 81143 \/ 48355v style threaded cap. They fit standard Vortex hubs rated roughly between 1250 and 1750 pounds and are intended for 5-bolt hubs only — not 6-lug models.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible part numbers: 81143, 48355v, K71-G01-73, 21-261\u003c\/li\u003e\n  \u003cli\u003eOuter thread diameter: approximately 2 5\/16\"\u003c\/li\u003e\n  \u003cli\u003eFits most Dexter marine and light-duty trailer Vortex hubs\u003c\/li\u003e\n  \u003cli\u003eNot compatible with 6-lug hubs or non-Vortex threaded systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these caps install and seal to prevent leaks?\u003c\/h3\u003e\n\u003cp\u003eEach cap uses a threaded design that screws into the hub bore for a secure mechanical fit, and a molded O-ring sits in place to reduce grease seepage. Installation is simple with standard hand tools; no special presses or adhesives are required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThread-in removal and installation — hand or wrench-tighten\u003c\/li\u003e\n  \u003cli\u003eMolded O-ring provides a grease-resistant seal\u003c\/li\u003e\n  \u003cli\u003eHard plastic resists cracking under normal trailer service\u003c\/li\u003e\n  \u003cli\u003eSold as a 2-pack so you can replace both sides at once\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and durability can I expect from these replacement caps?\u003c\/h3\u003e\n\u003cp\u003eSyunsXoon caps are molded from a tough, high-density plastic engineered to resist impact and deformation during routine trailering and storage. While not metal, the material balances strength with corrosion resistance so it won’t rust like steel caps located near marine environments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHard plastic construction — impact-resistant and lightweight\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant for marine and road use\u003c\/li\u003e\n  \u003cli\u003eDesigned to hold shape under normal hub loading conditions\u003c\/li\u003e\n  \u003cli\u003eReplaces brittle or missing caps that allow contamination\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This 2-pack of SyunsXoon 81143\/48355v replacement caps is aimed at trailer owners, boaters, and repair shops needing an economical, reliable way to reseal Dexter Vortex 5-bolt hubs. Choose these caps when you have a compatible Vortex hub (check thread diameter and bolt pattern), want a corrosion-resistant alternative to metal caps, and prefer an easy threaded installation that restores proper grease containment. If you’re unsure about fit, confirm your hub’s part number or measure the thread diameter before buying.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these caps compatible with 6-lug hubs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — these SyunsXoon caps are made for 5-bolt Vortex hubs and are not compatible with 6-lug hub patterns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the outer thread diameter of the replacement cap?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The outer thread diameter is approximately 2 5\/16\", designed for Vortex hub kits using 81143\/48355v caps.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SyunsXoon","offers":[{"title":"Default Title","offer_id":67592619655353,"sku":"B0BRX7C7TH","price":56.69,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/syunsxoon-front-packaging-81143-48355v.jpg?v=1790566347","url":"https:\/\/redleafauto.ca\/products\/syunsxoon-dexter-vortex-replacement-caps-2-pack-81143-48355v-threaded-with-o-ring-seal","provider":"Redleaf Auto","version":"1.0","type":"link"}