5" Boat Trailer Rollers with Brackets – Fits Various Trailer Models
These 5-inch diameter boat trailer rollers are designed for compatibility with a wide range of trailer models and brands. They provide essential keel support, ensuring a smoother process when launching and retrieving your boat. Made from durable materials, these rollers protect your boat's hull from damage.
This component serves as a direct replacement for multiple OEM and aftermarket parts, including: GlückMarine 5" X 3", JFATXTT 5in ODX3in W, Venussar 5", SeaSense 5-Inch, Tie Down 86407, and UANOFCN 3" Width x 5" OD.
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Universal Fit: The 5-inch outer diameter is consistent across all models, ensuring a fit for corresponding brackets.
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Variable Materials: Choose from PVC, Polyurethane, or Rubber to best suit your boat's hull and usage needs.
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Installation Ready: Assembly kits include brackets and mounting hardware for a complete installation.
Available Models
Confirm your trailer's requirements with the models listed below.
| Brand |
Model |
Type |
Width |
Shaft |
Material |
Notes |
| SeaSense |
Spool Roller |
Keel |
5-Inch x 1/2-Inch |
1/2" |
Black |
Standard design |
| Tie Down |
86407 |
Guided Keel |
5" |
|
Black PVC |
Hull Sav'r series |
| UANOFCN |
3" Width x 5" OD |
Ribbed Wobble |
3" |
1-1/8" |
Poly |
Mounting hole diameter 1-1/8" |
| JFATXTT |
5in ODX3in W |
Ribbed Wobble |
3" |
7/8-9/8" |
PU |
Includes 8 gaskets and 4 cotter pins |
| Venussar |
5" |
Keel Assembly |
|
|
|
Includes brackets |
| GlückMarine |
5" X 3" |
Roller Assembly |
3" |
1/2" |
|
Includes shaft/bow stop |
| Venussar |
5" |
Keel Roller Assembly Kit |
|
|
|
Complete kit with brackets |
| MARKGOO |
|
Bow Stop |
|
1/2" |
Blue |
For boat trailers |
Technical Specifications
| Specification |
Value |
| Product Type |
Boat Trailer Keel Roller |
| Installation |
Bracket-mounted |
| Material |
PVC, Polyurethane, or Rubber (varies by model) |
| Housing Color |
Black, Blue, or Yellow (varies by model) |
| Dimensions |
5" Diameter x 3" Width (127 mm x 76 mm) |
| Shaft Size |
1/2", 5/8", or 7/8"-9/8" (varies by model) |
| Roller Type |
Ribbed, Smooth, or Wobble (varies by model) |
| Other Technical Attributes |
May include gaskets and cotter pins |
Package Contents
Package contents vary by model. Please verify the contents of your selected model before purchase.
- 1 x Boat Trailer Roller
- 2 x Mounting Brackets (Note: for assembly kits only)
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Quantity Varies x Mounting Hardware (washers, bolts, gaskets, cotter pins)
Installation Guide
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Safety First: Ensure the boat is safely removed from the trailer and the trailer is securely blocked on level ground.
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Access the Roller: Locate the keel roller you intend to replace.
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Remove Old Hardware: Loosen and remove the nuts or bolts securing the roller shaft. You may need to remove cotter pins first.
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Extract Old Roller: Slide the shaft out and remove the old roller and any associated brackets or washers.
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Position New Roller: Place the new roller into the bracket, aligning the shaft holes.
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Install New Shaft: Slide the new shaft through the brackets and roller, adding any included gaskets or washers.
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Secure Hardware: Fasten the nuts and/or cotter pins to secure the shaft in place.
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Final Check: Ensure the roller spins freely and is properly aligned to support the boat's keel.
Troubleshooting & FAQ
How do I choose the right roller for my trailer?
First, measure the diameter, width, and shaft size of your existing roller. Next, check our 'Available Models' and 'Technical Specifications' tables to find a match. Pay close attention to the shaft size, as it varies significantly between models (1/2", 5/8", 1-1/8", etc.).
What's the difference between PVC, Polyurethane, and Rubber rollers?
PVC is a hard, durable material that won't mark your hull but is less forgiving on impact. Polyurethane (PU) is stronger than rubber, resistant to cuts, and won't mark the hull, making it a premium choice. Rubber is the softest, offering excellent cushioning, but it can leave black marks and wears down faster.
When should I replace my trailer rollers?
Inspect your rollers regularly for signs of cracking, splitting, or flat spots. A worn-out roller can damage your boat's keel. We recommend replacing them at the first sign of significant wear to ensure smooth and safe loading.
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.
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Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.