Attwood Marine HubMate Wheel Bearing Protectors, 1.78 in Hub ID, Grease Fitting, PVC Covers

Overview

The Attwood Marine 11108-7 is a HubMate wheel bearing protector for compatible trailer wheel hubs that replaces the standard dust cap and gives you an accessible grease fitting for routine service. It fits hubs with a 1.78 inch inner diameter and keeps positive grease pressure in the hub to help hold water and dirt back.

For boat trailers that are launched often, this matters at the ramp and on the road. You can add grease from the outside without taking the hub apart, which makes regular bearing care simpler between full inspections. The fitted PVC cover adds protection over the exposed end of the protector.

Key features

• Replaces the standard dust cap in compatible trailer wheel hubs
• Grease fitting lets you add grease without hub disassembly
• Positive grease pressure helps keep water and dirt out during launch and retrieval cycles
• Fits wheel hubs with a 1.78 inch inner diameter
• Custom-fitted PVC covers protect the exposed end of the protector

Compatibility and fit

Fit comes down to the hub opening. This model is sized for wheel hubs with a 1.78 inch inner diameter, so that measurement should match the trailer hub before ordering. It is made for hubs that use a dust cap style setup and need an external grease point for easier service.

This product is a better match for boat trailers than for the vessel itself, especially when the trailer sees repeated ramp use. It suits owners who want a cleaner way to maintain bearing lubrication without opening the hub each time grease needs to be added.

Maintenance and use

Routine greasing is simpler with the fitting positioned at the hub end, and that can help keep bearings lubricated between full bearing and seal service. It does not replace periodic inspection of bearings, seals, and grease condition, but it does make normal trailer hub maintenance easier to stay on top of.

Shipping
We ship worldwide from the United States. Rates are calculated at checkout based on destination and package weight. Some items include free shipping, which will show automatically. Not every product is eligible for international shipping; checkout will confirm eligibility. We do not ship to PO Boxes except through USPS, and not all packages qualify.

Processing and dispatch
Most orders are verified, packed, and handed to the carrier within 1 to 2 business days. Some products may need extra handling time or ship directly from the manufacturer. For certain international orders, inventory transfers between warehouses may add time. If any delay is expected, we will let you know the dispatch date.

Delivery and tracking
Deliveries are handled by trusted carriers such as USPS, UPS, FedEx, and DHL. Estimated arrival times appear at checkout and depend on your location and the service you choose. These are estimates and can be affected by customs or carrier disruptions. A shipping confirmation with a tracking link is emailed when your order ships, and tracking may take up to 24 hours to update. You can also view tracking in your account.

Duties, taxes, and support
International customers are responsible for any customs duties, taxes, and fees charged by the destination country. If these charges are refused and a shipment returns to us, the carrier’s return cost and any re-entry customs fees will be deducted from the refund. If your order is late or you need help, contact cs@qualityboatparts.com and we will assist you.

Quality Boat Parts is a reseller. Many items include a manufacturer’s warranty, and all warranty service is handled directly by the manufacturer. We do not manage or administer warranty claims on behalf of customers.

Warranty terms, coverage, and duration are set by each manufacturer. Issues involving defects, repairs, or replacements must be addressed with the manufacturer’s support team. When available, the warranty period is listed on the product page. If it is not shown, contact us or the manufacturer for details before purchasing.

To start a claim, the customer must contact the manufacturer and follow their process. Keep your proof of purchase and original packaging, and register the product if the manufacturer requires it, as these are often needed for warranty service.

We are happy to help you find the right contact or documentation, but we cannot decide outcomes or intervene in claim resolutions. For guidance, email cs@qualityboatparts.com.