{"product_id":"ximoon-dexter-vortex-replacement-threaded-dust-caps-2-pack-2-5-16-o-ring-seal-for-1250-1750-lb-hubs","title":"Ximoon Dexter Vortex Replacement Threaded Dust Caps 2-Pack — 2 5\/16\" O-Ring Seal for 1250–1750 lb Hubs","description":"\u003cp\u003e\u003cstrong\u003eXimoon 81143 replacement threaded dust caps are a direct-fit 2-pack designed to seal Dexter Vortex and similar 1250–1750 lb trailer hubs, keeping bearings protected from water and debris.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese Ximoon 81143 caps replace common Dexter Vortex covers (48355V, K71-G01-73, 21-261 and compatible hub kits) using a threaded design and a snug O-ring seal. Made from durable materials and sized with an outer thread diameter of 2 5\/16\", they install quickly and give a secure, contaminant-resistant closure for boat trailers, utility trailers, and small-axle applications.\u003c\/p\u003e\n\n\u003ch3\u003eHow do Ximoon 81143 caps fit my Dexter Vortex-style hub?\u003c\/h3\u003e\n\u003cp\u003eThe caps are engineered to match the thread pattern and dimensions used on many Dexter Vortex hubs and equivalent kits. They work with 1250–1750 lb axle ratings and common part numbers listed by hub manufacturers, providing the same fitment as original equipment covers.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Dexter Vortex references: 48355V, K71-G01-73, 21-261.\u003c\/li\u003e\n  \u003cli\u003eOuter thread diameter: 2 5\/16\" for direct replacement.\u003c\/li\u003e\n  \u003cli\u003eIntended for 1250–1750 lb rating hubs and tie-down engineering vortex hubs.\u003c\/li\u003e\n  \u003cli\u003eSold as a 2-pack so you get both sides of an axle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and sealing features protect bearings?\u003c\/h3\u003e\n\u003cp\u003eThese threaded caps are molded from tough materials that resist road salt, UV exposure and general wear. An integrated O-ring seals the hub bore to keep water, sand and grit away from the bearings and grease, helping to extend component life when used and maintained properly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable construction resists cracking and corrosion.\u003c\/li\u003e\n  \u003cli\u003eO-ring provides a tight, contaminant-free fit.\u003c\/li\u003e\n  \u003cli\u003eThreaded design locks securely in place under vibration.\u003c\/li\u003e\n  \u003cli\u003eEasy to inspect and service without special tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow simple is installation and maintenance?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: screw the cap onto the hub threads and seat the O-ring. Most users complete installation in minutes using hand pressure and a light wrench if needed; removal is just as quick for greasing and inspection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThreaded cap for tool-free hand tightening and easy removal.\u003c\/li\u003e\n  \u003cli\u003eTwo caps included — one per wheel on a single axle.\u003c\/li\u003e\n  \u003cli\u003eRoutine bearing checks remain simple with removable cover.\u003c\/li\u003e\n  \u003cli\u003eWorks with standard hub grease and bearing maintenance practices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these caps work on boats and trailers near saltwater?\u003c\/h3\u003e\n\u003cp\u003eThe materials and O-ring design offer good resistance to moisture and contaminants, making these caps suitable for marine and freshwater trailer use. Regular rinsing and post-use maintenance in saltwater environments will help prevent long-term corrosion on surrounding hub components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuitable for boat trailers when rinsed after saltwater exposure.\u003c\/li\u003e\n  \u003cli\u003eO-ring reduces water intrusion during short-term immersion or spray.\u003c\/li\u003e\n  \u003cli\u003eDurable finish helps resist road and marine conditions.\u003c\/li\u003e\n  \u003cli\u003eSwap and inspect caps during seasonal maintenance for best results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Ximoon 81143 replacement caps are aimed at trailer owners, boaters and fleet managers who need an affordable, OEM-compatible solution for 1250–1750 lb hubs built to Dexter Vortex specifications. If you need a fast, reliable replacement that installs in minutes and protects bearings from contamination, this two-piece threaded cap set gives a practical, service-friendly option for routine trailer upkeep.\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 Dexter part 48355V?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Ximoon 81143 is listed compatible with Dexter 48355V and similar Vortex hub part numbers.\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?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The outer thread diameter measures 2 5\/16\" for this replacement cap.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Ximoon","offers":[{"title":"Default Title","offer_id":55161065963863,"sku":"B0BKFQRS55","price":31.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/ximoon-front-packaging-81143-replacement-caps.jpg?v=1790321688","url":"https:\/\/britishgarage.co.uk\/products\/ximoon-dexter-vortex-replacement-threaded-dust-caps-2-pack-2-5-16-o-ring-seal-for-1250-1750-lb-hubs","provider":"British Garage","version":"1.0","type":"link"}