Attwood Marine Adjusting Hull Roller, 4-1/4 in x 4-3/8 in, Fits 3/4 in Shaft, Smooth Natural Rubber, Steel Insert

Overview

The Attwood Marine 11230-1 is an adjusting bow roller for boat trailers with automatic adjusting roller systems. It has a smooth natural-rubber body with a steel insert, measures 4-1/4 in. long by 4-3/8 in. in diameter, and fits 3/4 in. shaft hardware.

On a trailer, this roller helps the keel move forward toward the bow stop and roll off more cleanly at launch while keeping hull contact on rubber instead of bare hardware. The pre-drilled center hole helps line it up on the shaft during replacement, which is useful when you are matching an existing roller on a keel-roller setup.

Key features

• Made for boat trailers that use automatic adjusting roller systems
• Smooth roller surface helps the boat move more easily during loading and launching
• Natural rubber helps buffer hull contact and reduce scuffing at the roller point
• Steel insert adds support where the roller mounts on the shaft
• 4-1/4 in. length and 4-3/8 in. outside diameter for matching an existing roller size
• Fits 3/4 in. shaft hardware
• Pre-drilled center hole helps with quick, accurate mounting on compatible assemblies

Compatibility and fit

This roller is a good match when you are replacing a worn adjusting roller on a trailer and need the same basic size and shaft fit. Check the roller length, outside diameter, shaft diameter, and the style of your current automatic adjusting assembly before ordering. If your trailer uses a different shaft size or a different roller profile, this part will not be the right match.

It suits keel-roller trailer layouts where the boat is guided on rollers during launch and retrieval. Trailer owners who load and launch often will appreciate keeping the roller size consistent across the setup so the hull tracks the same way each time.

Installation and upkeep

The roller mounts on 3/4 in. shaft hardware through the pre-drilled center hole. Once installed, it should turn freely without binding and sit square in the bracket so the keel meets the full rolling surface.

After launching, inspect the roller for cracks, flat spots, or damage that can stop it from turning smoothly. That matters most on trailers that spend time in sun, road spray, and repeated ramp use, where a worn roller can make loading harder and put rougher contact on the hull.

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.