3" Red Polyurethane Bow Roller – Fits Boat Trailers (Replaces Multiple OEM Models)
3" Red Polyurethane Bow Roller – Fits Boat Trailers (Replaces Multiple OEM Models) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
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3" Red Polyurethane Bow Roller – Fits Boat Trailers (Replaces ...
3" Red Polyurethane Bow Roller – Fits Boat Trailers (Replaces Multiple OEM Models) is backordered and will ship as soon as it is back in stock.
Product Details
This 3" red polyurethane boat trailer roller is engineered for boat trailer bow stops and winch post mounts, featuring a standard 1/2" center bore to fit corresponding roller shafts. The soft, non-marking polyurethane construction provides durable protection against hull damage and is resistant to weather and UV degradation in demanding marine environments.
It serves as a direct replacement for JLM Marine BR76RD17, Stoltz RP-443, and GHmarine 3" Bow Stop Roller.
- Mounts on a winch post or bow bracket using a 1/2" shaft.
- Soft polyurethane material protects the boat hull during loading.
- Package includes one bow roller.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| JLM Marine | BR76RD17 |
| Stoltz | RP-443 |
| GHmarine | 3" Bow Stop Roller |
Universal Applications
Confirm your trailer's requirements in the table below.
| 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 Specs
- 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
What’s in the Box
- 1 × Red Polyurethane Bow Roller with 1/2" Shaft
Installation Notes
- Ensure the trailer is on a level surface and the boat is secured or removed.
- Remove the old roller by detaching the retaining hardware (e.g., pal nuts, cotter pins) from the shaft.
- Slide the old roller off the shaft, noting the position of any spacers or washers.
- Clean the shaft and apply a marine-grade grease to prevent corrosion.
- Slide the new polyurethane roller onto the shaft, reinstalling any original spacers.
- Secure the new roller in place with new, appropriate hardware (not included).
- Confirm the roller spins freely and is correctly aligned with the boat's bow.
Troubleshooting & FAQ
How do I know if this roller will fit my trailer winch post?
This roller is designed for winch posts with a 3-inch wide mounting bracket and uses a 1/2-inch diameter shaft or bolt. Measure your existing bracket and shaft diameter to ensure compatibility before ordering.
What is the benefit of polyurethane over traditional rubber rollers?
Polyurethane is a superior material for boat trailer rollers as it is non-marking, meaning it will not leave scuffs on your boat's hull. It is also more durable, resistant to cuts, and holds up better against UV light and saltwater compared to standard black rubber.
When should I replace my bow roller?
Inspect your bow roller regularly for signs of wear, such as deep grooves, cracks, chunking, or deformation. Replace it if it no longer spins freely or shows significant damage, as a worn roller can damage your boat's hull during loading and unloading.
Is mounting hardware included?
No, this listing is for the roller only. You will need to provide a 1/2" diameter mounting shaft or bolt and the necessary securing hardware like cotter pins or pal nuts, which can be purchased at most marine or hardware stores.
Can this roller be used for purposes other than a bow stop?
Yes, while its primary design is for a bow stop on a winch post, it can also function as a small keel roller on certain trailer setups that utilize a 1/2" shaft for support rollers.
Is the red color purely cosmetic?
The red color helps with visibility during daytime loading, making it easier to center the boat. The polyurethane material is UV stabilized to resist color fading over time.
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
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