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7" X 4" Boat Trailer Roller Assembly with 1/2 Inch Shaft Bow Stop
- $38.99
$46.00- $38.99
- Unit price
- per
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7" X 4" Boat Trailer Roller Assembly with 1/2 Inch Shaft Bow Stop
This versatile bow roller assembly is designed for boat trailers equipped with a 1/2-inch mounting shaft. Made from durable, non-marking polyurethane material, it provides gentle yet firm support for your boat's bow during loading and trailering. The rugged construction ensures long-term resistance to damage from sunlight, chemicals, and water.
This assembly serves as a direct replacement for the following models: GluckMarine 7" X 4", MARKGOO 7" X 4" Boat Trailer Roller, and JFATXTT 4" Bow Roller.
- Installation Type: Bolt-on for 1/2" shafts.
- Material: High-strength, non-marking polyurethane (PU).
- Included Components: Comes with roller, end bells, and mounting bolt with washer.
Compatible Applications
Confirm your trailer specifications in the table below.
| Brand | Application | Notes |
|---|---|---|
| Multiple Brands | Boat trailers with 1/2 inch mounting shafts | Provides resilient support for the boat's keel |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Bow Roller Assembly |
| Installation | Bolt-on (1/2 inch shaft) |
| Material | Polyurethane (PU) |
| Color | Blue (also available in Black) |
| Dimensions | 7" L x 4" W (177.8 mm x 101.6 mm) |
| Center Hole Diameter | 17 mm (0.67 in) |
| Shaft Size | 1/2 inch (12.7 mm) |
| Weight | 0.94 kg (2.07 lb) |
| Other Technical Attributes | Non-marking surface prevents boat hull damage |
Package Contents
- 1 x Bow Roller (7" x 4")
- 2 x End Bells
- 1 x Bolt with Washer
- Note: Package includes all components listed, matching the GluckMarine assembly.
Installation Guide
- Ensure the boat is off the trailer and the trailer is parked on a level surface with wheels chocked for safety.
- Locate the existing bow roller assembly and use appropriate tools to remove the nut and bolt from the mounting shaft.
- Slide the old shaft and roller out of the bracket, taking note of the order of any washers or end caps.
- Clean the mounting bracket area to remove any dirt or corrosion.
- Slide the new bolt through the bracket and one end bell, then place the new bow roller onto the bolt.
- Position the second end bell on the other side of the roller and slide the bolt completely through.
- Secure the assembly by tightening the washer and nut. Do not overtighten; the roller should spin freely with minimal side-to-side movement.
Troubleshooting & FAQ
Q: How do I confirm this roller fits my trailer?
A: This assembly is designed for trailer brackets that use a 1/2-inch diameter mounting shaft. Measure your trailer's existing hardware and bracket width to ensure it matches the product dimensions (7" L x 4" W).
Q: What are the benefits of the polyurethane material?
A: Polyurethane is a durable, non-marking material that won't leave scuffs or scratches on your boat's hull. It is also highly resistant to UV degradation, chemicals, and water, ensuring a longer service life compared to traditional rubber rollers.
Q: When should I replace my bow roller?
A: Inspect your bow roller regularly for signs of wear, such as deep cracks, flat spots, or deformation. Replace it if it no longer spins freely or fails to provide adequate support, as a worn roller can damage your boat's bow during loading and transport.
Q: OEM vs. Aftermarket?
A: 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.
Q: How fast do you ship and how much does it cost?
A: 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.
Q: What is your warranty and return policy?
A: 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.
Мы осуществляем доставку практически по любому адресу в мире, при этом для большинства регионов доступна бесплатная доставка.
Для наших типичных клиентов из США и Канады сроки доставки следующие:
- Amazon FBA : заказы будут доставлены в течение 1–5 рабочих дней после размещения заказа (в определенные особые периоды, такие как крупные акции, Рождество и т. д., время доставки Amazon FBA может быть изменено).
- Доставка со склада в США : заказы будут доставлены в течение 7 дней после размещения заказа.
- Доставка со склада в Китае : заказы будут доставлены примерно через 12 дней после размещения заказа.
Когда вы размещаете заказ, мы оценим даты отправки и доставки для вас на основе доступности ваших товаров и выбранных вами вариантов доставки. В зависимости от выбранного вами поставщика услуг доставки, предполагаемые даты доставки могут отображаться на странице расценок на доставку.
Также обратите внимание, что стоимость доставки многих товаров, которые мы продаем, основана на весе. Вес любого такого товара можно найти на странице с его подробностями. Чтобы отразить политику транспортных компаний, с которыми мы работаем, все веса будут округлены до следующего целого фунта.
Основанная в 2002 году, компания JLM Marine зарекомендовала себя как специализированный производитель высококачественных морских деталей, базирующийся в Китае. Наша приверженность совершенству в производстве заслужила нам доверие ведущих мировых морских брендов.
Как прямой поставщик, мы обходим посредников, что позволяет нам предлагать конкурентоспособные цены без ущерба качеству. Такой подход не только поддерживает экономическую эффективность, но и гарантирует, что наши клиенты получают наилучшую ценность напрямую от источника.
Мы рады расширить свое присутствие через розничные каналы, предлагая наш опыт и приверженность качеству непосредственно владельцам и любителям лодок по всему миру.
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