3" Red Polyurethane Bow Roller – Fits Boat Trailers (Replaces Multiple OEM Models)
This 3" red polyurethane roller is designed for boat trailer bow stops and winch post mounts. It features a 1/2" center bore to fit standard roller shafts. The soft, durable polyurethane material protects your boat's hull from scratches and scuffs while providing excellent resistance to marine environments.
This roller serves as a direct replacement for JLM Marine BR76RD17, Stoltz RP-443, and GHmarine 3" Bow Stop Roller.
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Housing Material: Soft, Non-Marking Polyurethane
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Bore Diameter: 1/2" (12.7mm)
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Primary Use: Bow stop protection on winch posts
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
Brand |
Part Number |
JLM Marine |
BR76RD17 |
Stoltz |
RP-443 |
GHmarine |
3" Bow Stop Roller |
Compatible Applications
Use Case |
Application |
Notes |
Boat Trailer |
Bow roller for winch posts |
Most common installation on 3" wide winch stands |
Boat Trailer |
Bow stop roller |
Protects boat hull during loading/retrieval |
Boat Trailer |
Keel roller |
Can be used as a small keel roller on some applications |
Technical Specifications
Product Type |
Boat Trailer Bow Roller |
Installation |
Mounts on winch post or bow bracket with 1/2" shaft |
Housing Material |
Soft Polyurethane |
Housing Color |
Red |
Dimensions |
3" diameter × approximately 3" width (76mm × 76mm) |
Bore Diameter |
1/2" (12.7mm) |
Other Technical Attributes |
Non-marking surface, weather resistant, UV stable |
Package Contents
- 1 × Red Polyurethane Bow Roller
- Note: Mounting hardware is not included. This part requires a 1/2" diameter mounting shaft or bolt and appropriate securing hardware (e.g., pal nuts, cotter pins).
Installation Guide
- Ensure the trailer is parked on a level surface and the wheels are securely chocked.
- Remove the existing hardware (e.g., cotter pin, pal nut) that secures the old roller shaft.
- Slide the shaft out of the bow stop bracket and remove the old, worn roller.
- Clean any dirt or corrosion from the shaft and bracket.
- Slide the new 3" polyurethane roller onto the shaft, ensuring it is centered.
- Re-insert the shaft through the bracket and secure it with the original or new hardware.
- Confirm the roller spins freely and is correctly aligned to meet your boat's bow.
Troubleshooting & FAQ
How do I know if this roller will fit my trailer?
This roller is designed for a 3-inch wide mounting bracket and uses a standard 1/2-inch shaft or bolt. Measure your existing setup to confirm these dimensions for a proper fit.
What is the benefit of polyurethane over a standard rubber roller?
Polyurethane is a non-marking material, so it will not leave scuffs or black marks on your boat's hull. It is also far more resistant to damage from UV rays, saltwater, and weather, making it more durable than traditional rubber.
Does this roller include the shaft or mounting hardware?
No, this package includes the roller only. You will need to reuse your existing 1/2" shaft and securing hardware (like pal nuts or cotter pins) or purchase them separately.
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?
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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.