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photo of JLM Marine spiral keel roller for 5/8 inch shaft, red, angled view, showing ribbed texture and flat circular end
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photo of jlm marine 12-inch self-centering keel roller red with spiral grooves and indentations
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photo of 12-inch self-centering keel roller red by 5-8-inch shaft with textured spiral surface and two contoured sections
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photo 12-inch self-centering keel roller red JLM Marine blue PU ABS spiral ribbed tapered 5/8 inch shaft
photo of 12 inch self centering keel roller red by 5/8 inch shaft jlm marine with spiral groove and diameter of mount hole measured approx 0.67 inch
photo of JLM Marine 12-inch self-centering keel roller red with grooved texture and central narrow section, part number 5/8-inch shaft
photo of red 12-inch self-centering keel roller by jlm marine with ribbed pattern for 5/8-inch shaft
photo of jlm marine 12-inch self-centering keel roller, red, cylindrical with spiral texture, white circular insert on left end
photo of 12-inch self-centering keel roller red by 5/8 inch shaft jlm marine with spiral texture and white bushing at bottom
photo of jlm marine 12-inch self-centering keel roller, red, flexible material, flared end with white plastic insert with center hole
photo of JLM Marine spiral keel roller for 5/8 inch shaft, red, angled view, showing ribbed texture and flat circular end
photo of jlm marine 12-inch self-centering keel roller, red plastic, red, hexagonal opening
photo of jlm marine 12-inch self-centering keel roller red with spiral grooves and indentations
photo of 12-inch self-centering keel roller, red, ribbed design, 5/8 inch shaft, white insert
photo of 12-inch self-centering keel roller red by 5-8-inch shaft with textured spiral surface and two contoured sections
photo of JLM Marine 12-inch self-centering keel roller with red helical texture and textured cylindrical shaft for boat trailers
photo 12-inch self-centering keel roller red pu abs construction 12 length pu abs material 2.8 inch diameter 0.67 inch shaft diameter jlm marine
photo 12-inch self-centering keel roller red JLM Marine blue PU ABS spiral ribbed tapered 5/8 inch shaft
photo of 12 inch self centering keel roller red by 5/8 inch shaft jlm marine with spiral groove and diameter of mount hole measured approx 0.67 inch
photo of JLM Marine 12-inch self-centering keel roller red with grooved texture and central narrow section, part number 5/8-inch shaft
photo of red 12-inch self-centering keel roller by jlm marine with ribbed pattern for 5/8-inch shaft
photo of jlm marine 12-inch self-centering keel roller, red, cylindrical with spiral texture, white circular insert on left end

12-inch Self-Centering Keel Roller – Fits Boat Trailers (5/8" ID, #80992)

Vendor: JLM Marine
Availability: Out Of Stock
Product Type: Boat Trailer Roller
$17.99
$17.99
Color: Red
Subtotal: $17.99

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photo of 12-inch self-centering keel roller red by 5/8 inch shaft jlm marine with spiral texture and white bushing at bottom

12-inch Self-Centering Keel Roller – Fits Boat Trailers (5/8" ID, #80992)

$17.99
photo of 12-inch self-centering keel roller red by 5/8 inch shaft jlm marine with spiral texture and white bushing at bottom
photo of jlm marine 12-inch self-centering keel roller, red, flexible material, flared end with white plastic insert with center hole
photo of JLM Marine spiral keel roller for 5/8 inch shaft, red, angled view, showing ribbed texture and flat circular end
photo of jlm marine 12-inch self-centering keel roller, red plastic, red, hexagonal opening
photo of jlm marine 12-inch self-centering keel roller red with spiral grooves and indentations
photo of 12-inch self-centering keel roller, red, ribbed design, 5/8 inch shaft, white insert
photo of 12-inch self-centering keel roller red by 5-8-inch shaft with textured spiral surface and two contoured sections
photo of JLM Marine 12-inch self-centering keel roller with red helical texture and textured cylindrical shaft for boat trailers
photo 12-inch self-centering keel roller red pu abs construction 12 length pu abs material 2.8 inch diameter 0.67 inch shaft diameter jlm marine
photo 12-inch self-centering keel roller red JLM Marine blue PU ABS spiral ribbed tapered 5/8 inch shaft
photo of 12 inch self centering keel roller red by 5/8 inch shaft jlm marine with spiral groove and diameter of mount hole measured approx 0.67 inch
photo of JLM Marine 12-inch self-centering keel roller red with grooved texture and central narrow section, part number 5/8-inch shaft
photo of red 12-inch self-centering keel roller by jlm marine with ribbed pattern for 5/8-inch shaft
photo of jlm marine 12-inch self-centering keel roller, red, cylindrical with spiral texture, white circular insert on left end

12-inch Self-Centering Keel Roller – Fits Boat Trailers (5/8" ID, #80992)

$17.99
Color: Red
Description

12-inch Self-Centering Keel Roller – Fits Boat Trailers (5/8" ID, #80992)

This innovative keel roller takes the guesswork out of centering your boat on the trailer. Its grooved design automatically guides the boat's keel as it rolls forward, ensuring a perfect alignment every time. This aftermarket roller is a reliable replacement for worn or damaged keel rollers on a wide variety of boat trailers.

Made from a resilient, non-marking polymer blend, this roller is built to withstand the harsh marine environment without scuffing or damaging your boat's hull. It is engineered for durability and smooth operation, providing excellent support during launching and retrieval.

  • Material: Resilient, non-marking polymer blend.
  • Fitment: Mounts on a standard 5/8" diameter roller shaft.
  • Design: Grooved for automatic self-centering functionality.

Compatible Applications

This roller is designed for universal fitment on all boat trailers equipped with 5/8" diameter keel roller shafts.

Technical Specifications

Specification Value
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

Package Contents

  • 1 x Self-Centering Keel Roller (#80992)

Installation Guide

  1. Safely secure the boat and trailer on a level surface, ensuring the boat's weight is properly supported off the roller being replaced.
  2. Identify and remove the retaining hardware (e.g., pal nuts, cotter pins) from the ends of the roller shaft.
  3. Slide the old, worn roller and shaft out from the trailer bracket.
  4. Thoroughly clean the trailer bracket and shaft to remove any dirt or corrosion.
  5. Slide the new self-centering keel roller onto the 5/8" shaft.
  6. Re-insert the shaft and new roller assembly into the bracket, aligning the mounting holes.
  7. Secure the shaft in place with the original or new retaining hardware.
  8. Ensure the roller spins freely on the shaft without excessive wobble.

Troubleshooting & FAQ

How do I know if this roller will fit my trailer?

This roller is designed to fit any boat trailer that uses a 5/8-inch diameter roller shaft. The most reliable method is to measure the diameter of your existing roller's shaft to confirm it is 5/8" before ordering.

What is the benefit of a self-centering roller?

The grooved "V" shape automatically guides the boat's keel to the center of the trailer as you drive it forward. This makes loading easier, faster, and more consistent, especially in windy or current-heavy conditions.

What is the roller made of? Will it mark my boat's hull?

It is made from a resilient, non-marking polymer blend (PVC). This material is specifically chosen for its durability and its inability to leave scuffs, streaks, or marks on your boat's gelcoat or hull.

OEM vs. Aftermarket?

This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?

We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?

This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

  • Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
  • This product is an aftermarket replacement part and is not an OEM component.
  • Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

  • Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
  • Fast Global Shipping: Free delivery worldwide in 5–15 days.
  • Direct from Manufacturer: Competitive pricing without compromising quality.
Shipping

We can ship to virtually any address in the world with free shipping available for most regions.

For our typical US and Canadian customers , our shipping timeframes are as follows:

  • Amazon FBA: orders will be delivered within 1-5 business days after placing the order (during certain special periods such as major promotions, Christmas, etc., the delivery time of Amazon FBA may be affected).
  • US warehouse shipment: orders will be delivered within 5 days after placing the order.
  • China warehouse shipment: orders will be delivered about 12 days after placing the order.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

About JLM Marine

Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.

As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.

We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.

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