Bow Stop Roller Assembly – Fits Boat Trailers with 1/2 Inch Shaft (Replaces GlückMarine/SLSRPMT)
Bow Stop Roller Assembly – Fits Boat Trailers with 1/2 Inch Shaft (Replaces GlückMarine/SLSRPMT) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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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.
Tracking information will be provided once your order ships.
Bow Stop Roller Assembly – Fits Boat Trailers with 1/2 Inch Shaft (...
Bow Stop Roller Assembly – Fits Boat Trailers with 1/2 Inch Shaft (Replaces GlückMarine/SLSRPMT) is backordered and will ship as soon as it is back in stock.
Product Details
This Boat Trailer Roller Assembly is engineered to protect and guide your boat during trailer loading and unloading. Designed for boat trailers using a 1/2 inch shaft, it is available in multiple sizes (3" x 5" and 7" x 4"), colors, and shapes (V-Shape or W-Shape) to match your specific setup.
It serves as a direct, high-quality replacement for GlückMarine, SLSRPMT, COLOFULWAY, and Wonwopn bow rollers.
- Easy bolt-on installation onto standard boat trailer bow stop brackets.
- Made from durable, non-marking polyvinyl chloride (PVC) to protect your boat's hull.
- Includes a complete hardware kit with a stainless steel bolt and washers for a secure fit.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| GlückMarine | 5" X 3" & 7" X 4" Bow Stop |
| SLSRPMT | 3" Bow Roller |
| COLOFULWAY | 3" Bow Roller |
| Wonwopn | 3" Bow Roller |
Technical Specs
- Product Type
- Bow Stop Roller Assembly
- Installation
- Bolt-on
- Connection
- 1/2 inch shaft hole
- Housing Material
- Polyvinyl chloride (PVC)
- Housing Color
- Available in Amber, Black, Dark Blue, Light Blue
- Dimensions
- 5" x 3" or 7" x 4" (varies by model)
- Weight
- 0.71 kg (1.57 lb) for 5" model
- Fitting Type
- Boat trailer bow stop bracket
- Thread Size
- 1/2 inch
- Other Technical Attributes
- V-Shape or W-Shape options available
What’s in the Box
- 1 x Bow Roller (inner roller)
- 2 x End Bells/Caps
- 1 x Stainless Steel Bolt with Washers
Installation Notes
- Ensure the trailer is on a level surface and the boat is properly secured to prevent movement.
- Identify and access the existing bow roller assembly on the trailer's bow stop bracket.
- Use an appropriately sized wrench to loosen and remove the nut and bolt holding the old roller in place.
- Remove the worn-out roller and its end caps. Clean any dirt or rust from the bracket surfaces.
- Position the new end bells on each side of the new bow roller.
- Align the new assembly with the bolt holes in the bracket and slide the new stainless steel bolt through.
- Secure the assembly with the provided washers and nut, tightening until it is snug. The roller should still spin with minimal resistance.
- Confirm the roller is correctly aligned to meet the bow of your boat for proper guidance.
Troubleshooting & FAQ
What’s the difference between the V-shape and W-shape rollers?
V-shape rollers are ideal for standard V-hulls, providing a centered point of contact. W-shape (or "v-bow") rollers offer a wider channel, which is better for guiding boats with a more pronounced keel or bow anchor roller.
How do I know if this roller will fit my trailer?
Measure the inside width of your trailer's bow stop bracket and the diameter of the current bolt. This assembly is designed for brackets that accommodate a 5" or 7" roller and use a 1/2 inch shaft/bolt.
Will this PVC roller mark my boat's hull?
These rollers are made from a non-marking PVC compound specifically designed to protect your boat's gelcoat and finish. Always ensure the roller surface is clean and free of embedded abrasive debris like sand to prevent scuffing.
What are the signs that a bow roller needs to be replaced?
Inspect your roller for visible signs of damage such as deep cracks, splits, flat spots, or deterioration from UV exposure. If the roller is seized and does not spin freely, it should be replaced immediately to avoid damaging your boat's bow during loading.
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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