12-inch Self-Centering Keel Roller – Fits Boat Trailers (5/8" ID, #80992)
12-inch Self-Centering Keel Roller – Fits Boat Trailers (5/8" ID, #80992) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
12-inch Self-Centering Keel Roller – Fits Boat Trailers (5/8" ...
Product Details
This 12-inch self-centering keel roller simplifies boat loading by automatically guiding your boat's keel into the correct position. The grooved design centers the bow as you roll the boat forward, making solo loading faster and safer. It is designed for universal fitment on boat trailers equipped with a standard 5/8-inch diameter roller shaft.
This component serves as a direct replacement for rollers with the same dimensions, offering a significant upgrade in boat alignment and hull protection.
- Engineered with a grooved channel for automatic self-centering.
- Mounts easily onto a common 5/8" keel roller shaft.
- Constructed from a durable, non-marking polymer that won't scuff or damage your boat's hull.
Trailer Compatibility
Confirm your trailer's roller shaft diameter in the table below.
| Brand | Model | Required Shaft Diameter | Notes |
|---|---|---|---|
| Universal | All Boat Trailers | 5/8" | Fits any standard keel roller bracket designed for a 5/8" shaft. |
Technical Specs
- Product Type
- Self-Centering Keel Roller
- Installation
- Mounts on 5/8" shaft
- Connection
- 5/8" I.D. bore
- Housing Material
- Resilient, non-marking polymer blend/PVC
- Dimensions
- Length: 11-3/8" (289mm), End width: 2-3/4" (70mm)
- Fitting Type
- Center bore
- Other Technical Attributes
- Grooved design for self-centering functionality
What’s in the Box
- 1 x Self-Centering Keel Roller (#80992)
Installation Notes
- Securely block the wheels of the trailer and unhitch it from the tow vehicle. If the boat is on the trailer, ensure it is properly supported to relieve weight from the keel rollers.
- Identify the target keel roller. Remove the cotter pin and washer from one end of the roller shaft.
- Slide the shaft out of the roller bracket, removing the old roller. Clean the shaft and bracket of any dirt or corrosion.
- Slide the new self-centering keel roller into the bracket, aligning its bore with the bracket holes.
- Insert the roller shaft through the bracket and the new roller.
- Secure the shaft in place with the original washer and a new cotter pin. Bend the pin's legs to lock it.
- Ensure the roller spins freely on the shaft without excessive side-to-side movement.
Troubleshooting & FAQ
How does the self-centering feature work?
The roller features a deep central groove. As the boat moves forward onto the trailer, this groove catches the keel and guides it into the center, preventing it from drifting to one side.
Will this roller mark or scratch my boat's hull?
No. It is made from a resilient, non-marking polymer blend (a type of PVC) specifically designed to roll smoothly against gelcoat and painted aluminum hulls without causing scuffs or marks.
How do I confirm this roller will fit my trailer?
The critical measurement is the diameter of your current roller's shaft. This roller is designed for a 5/8-inch shaft, which is a common standard. Also, verify the 11-3/8" length fits your trailer's roller bracket.
What maintenance is required?
Periodically rinse the roller with fresh water to remove salt and debris. Check that it spins freely before each use. If it becomes stiff or worn, check the shaft for corrosion or consider replacement.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
