xyocx Replacement 2-3/8 inch Dust Cap Grease Cover for Dexter Alko Trailer RV Axle Hub – Pack of 4

Overview

Meet the xyocx Replacement 2-3/8 inch Dust Cap Grease Cover, designed for Dexter Alko trailer hubs and common axle configurations used on campers, RVs, trucks, and boats. With a 62 mm (2.44 inch) wheel diameter fit and compatibility with 5,200–6,000 lb axles, these caps work across a range of vehicles including trailers, pickups, and watercraft. The caps are not EZ-Lube, making them a straightforward replacement that helps keep the hub area cleaner on road, dock, or campsite.

In real-world use, the compact design acts as a seal against dust, dirt, grime, and incidental grease, helping to maintain cleaner hub exposure in varied environments from dusty highways to salty boat ramps.

Relief and inspection features

The built-in relief feature expels excess grease if the hub is over-filled, reducing the chance of grease spray and minimizing exposure to contaminants around the hub. To monitor lubrication, you can push on the piston edge; if the piston rocks, the level is adequate, and if it doesn’t, add grease until it moves. This simple check supports ongoing maintenance without tools.

Fit, compatibility, and what's in the box

Designed for wheels with a diameter of 62 mm (2.44 inches) and axles rated between 5,200 and 6,000 pounds, these caps are a practical replacement for many Dexter Alko setups. They are provided as a pack of four caps, giving you multiple hubs covered or spare parts for future needs.

Use cases and vehicle types

Ideal for trucks, pickups, trailers, RVs, fishing boats, sailboats, and other gear that relies on reliable hub protection. Whether you’re heading to a campsite, launching at the marina, or hauling gear along rugged gravel, these caps offer a practical defense against the elements and grime.

• Protects wheel hubs from dust, dirt, grime, and grease, helping maintain cleaner assemblies.
• Relief feature expels excess grease to minimize mess and contamination around the hub.
• Grease level can be checked quickly by pushing the piston edge; add grease until it moves.
• Package includes four caps for multiple hubs or future replacements.

Installation and maintenance tips

To install, align the cap with the hub and press until it seats securely. For routine maintenance, use the piston edge test to confirm grease presence and reapply as needed to keep the hub protected during travel and use.