Sconva Vortex Trailer Hub Dust Caps 81143 — 2-Pack 2-5/16" Threaded with O-Rings for 5-Bolt Dexter Hubs

Sconva 81143 is a two-piece threaded replacement vortex hub dust cap designed to seal and protect 5-bolt Dexter Vortex trailer hubs (48355V) with a 2 5/16" outer thread diameter.

When a trailer or boat hub dust cap cracks, gets lost, or allows grease leakage, you need a direct-fit replacement that restores a tidy, watertight hub without expensive repairs. The Sconva 81143 kit supplies two hard-plastic threaded caps plus rubber O-rings to replace worn or missing Dexter-style vortex caps that use five bolts. Built for light- to mid-weight trailer hubs (1250–1750 lbs range), these caps help keep bearings and grease clean while offering straightforward installation and removal.

Will these caps fit my Dexter vortex hub?

These Sconva 81143 caps are intended for Dexter vortex-style hubs that accept a 2 5/16" outer thread diameter and use five bolts. They are not compatible with six-lug hubs or non-threaded push-fit caps. Always confirm your hub model and thread size before ordering.

• Fits Dexter Vortex hubs with 5-bolt design (e.g., K71-G01-73 / 21-261).
• Outer thread diameter: 2 5/16" (measure to verify).
• Replaces part number 48355V-style threaded dust caps.
• Not for 6-lug hubs or non-threaded hub styles.

How easy is installation and removal?

Installation is simple: the threaded cap screws into the hub and the supplied rubber O-ring seats to create a snug seal. Removal is equally easy thanks to the threaded design, which avoids prying or hammering that can damage bearings or paint.

• Threaded body for secure hand or wrench installation.
• Supplied O-ring prevents grease seepage and contamination.
• No special tools required for most installations.
• Designed for repeat removal without degrading the fit.

What materials and durability can I expect?

The caps are molded from sturdy hard plastic that resists cracking under normal trailer use, and each cap includes a flexible rubber O-ring. The combination provides corrosion resistance and toughness suitable for marine and road exposure when properly installed.

• Durable hard-plastic cap resists rust and corrosion.
• Rubber O-ring for lasting sealing performance.
• Lightweight construction minimizes added weight to hub assembly.
• Two caps included to replace both sides or keep a spare.

Can these caps help avoid costly repairs?

Yes—keeping grease sealed and dirt out of your hub greatly reduces wear on bearings and spindle components. Replacing a damaged or missing dust cap is an inexpensive preventive step that helps maintain trailer reliability and can extend the service life of hub components.

• Prevents contaminants from entering bearing area.
• Reduces risk of grease loss and premature wear.
• Affordable replacement vs. bearing or hub repairs.
• Two-pack offers immediate backup or dual-side replacement.

Who is this for: The Sconva 81143 vortex hub dust caps suit trailer owners, boaters, and RV users with Dexter 5-bolt vortex hubs in the light- to mid-weight range (1250–1750 lbs). If you need a direct-fit threaded dust cap to stop grease leaks, protect bearings from water and dirt, or simply replace a lost cap, this two-piece kit provides a rugged, easy-to-install solution. Verify your hub’s bolt count and 2 5/16" thread diameter before purchase to ensure compatibility.