8" Keel Roller with Bracket & End Caps 300-015500

The EZ Loader 8" keel roller assembly 300-015500 includes a rubber center roller, two rubber end caps, and a galvanized steel mounting bracket. The adjustable mounting arrangement allows the roller position to be matched to a compatible trailer and boat hull.

The roller helps guide and support the boat's keel during loading and unloading. Replace a worn, cracked, or flattened roller assembly after confirming the mounting dimensions and required keel contact position.

Adjustable Keel Support

The rubber center roller provides a rolling contact surface beneath the keel, while the rubber end caps cover the roller ends. The galvanized steel bracket provides corrosion resistance and allows adjustment to suit the trailer's support layout.

Correct positioning helps guide the boat along the trailer centerline. Set roller contact and load distribution according to the boat and trailer manufacturer's requirements.

Fitment Before Ordering

• Compare the 8" center roller size and listed assembly dimensions with your existing setup.
• Confirm the trailer frame or crossmember dimensions and available mounting clearance.
• Match the U-bolt size, spacing, and length to the bracket and trailer mounting location.
• Verify that the available adjustment positions the roller correctly beneath the keel.
• Check hull clearance around the roller, end caps, bracket, and nearby trailer components.

The listed assembly dimensions are separate from shipping package dimensions. Roller size alone does not establish compatibility.

Included Components and Mounting Hardware

This assembly includes the mounting bracket, 8" rubber center roller, and two rubber end caps. U-bolts and other hardware used to attach the bracket to the trailer are not included.

Installation and Adjustment

Support the boat and trailer securely before removing or adjusting the roller assembly. Inspect the mounting area and replace damaged or corroded mounting hardware as needed.

Follow the applicable manufacturer's installation and fastening instructions. After positioning the assembly, confirm that the roller turns freely, contacts the keel correctly, and provides adequate clearance throughout loading and unloading.

Compare EZ Loader Keel Roller Assemblies

Compare our keel roller assemblies by roller size, mounting arrangement, and included components. Matching roller width alone does not establish fitment. Check your trailer's mounting dimensions, required roller position, and hull clearance before ordering.

Products marked “Online listing planned” do not yet have a product page in our store. Call 843-683-5797 or email Parts@411Marine.com for information about these assemblies.

Browse all keel parts and roller assemblies.

Need Help Identifying Your Keel Roller?

Call 843-683-5797 or email Parts@411Marine.com. Photos of your existing roller assembly and mounting location, along with measurements and your trailer model or VIN, can help us identify the correct replacement.

Independent EZ Loader Parts Dealer Notice

EZLoaderParts411.com is an EZ Loader OEM replacement parts supplier owned and operated by 411MarineCom, Inc., part of the 411-Trailers Group and the 411Marine family of businesses, serving customers since 1998 from Hardeeville, South Carolina.

411MarineCom is a high-volume independent EZ Loader trailer dealer and direct-to-factory source for new EZ Loader marine boat trailers, OEM replacement parts, and fitment support.

We are a dealer resource, not the manufacturer. Our team helps previous trailer customers and new customers identify the correct EZ Loader parts using trailer VIN details, photos, measurements, real trailer comparisons, hands-on parts experience, publicly available resources, our websites, and direct customer conversations whenever possible.