SIERRA 18-6749 International Bracket Floor Mount

( Brand: Sierra ), ( Manufacturer Part Number: 18-6749 ), ( Part Type: Bracket Mount ), ( Material: Metal )

Review SIERRA International Metal Trim Bracket Floor Mount Br fits MERCRUISER

The **Sierra 18-6749 International Bracket for Mercruiser Floor Mount** is a meticulously engineered, heavy-duty mounting solution designed to provide a secure and stable foundation for Mercruiser marine engines when installed in a floor-mounted configuration. Crafted from high-quality, corrosion-resistant materials, this bracket is built to withstand the harsh marine environment, ensuring long-lasting performance even under the most demanding conditions. Its robust construction features precision-machined components that guarantee a tight, vibration-dampening fit, reducing engine movement and enhancing overall ride comfort while minimizing wear on critical engine components.

The bracket s design emphasizes both functionality and ease of installation, featuring a universal compatibility with a wide range of Mercruiser engine models, making it an ideal choice for boat owners seeking a reliable, off-the-shelf solution. The floor mount configuration allows for optimal weight distribution, lowering the engine s center of gravity and improving the vessel s stability and handling. Engineered with precision, the bracket includes reinforced mounting points and reinforced steel construction to handle the stresses of frequent use, rough water conditions, and varying loads without compromising structural integrity.

Beyond its mechanical strength, the Sierra 18-6749 is engineered with practicality in mind, offering a streamlined installation process that minimizes downtime. The bracket s design accommodates standard Mercruiser engine mounts, ensuring a seamless fit with minimal modifications required to the boat s existing infrastructure. Whether used in recreational boats, fishing vessels, or workboats, this bracket delivers a dependable performance that aligns with the demands of modern marine applications. With its focus on durability, precision, and ease of use, the Sierra 18-6749 International Bracket for Mercruiser Floor Mount stands as a trusted choice for boat owners and marine professionals seeking a reliable mounting solution.

### Pros and Cons of buying a Sierra 18-6749 International Bracket for Mercruiser Floor Mount

1. **Compatibility and Fit** This bracket is engineered to fit International (Navistar) engines paired with Mercruiser transmissions, reducing the risk of misalignment or installation issues. It ensures a secure and proper connection between the engine and transmission.

2. **Durability and Quality** Sierra Manufacturing is known for producing high-quality, heavy-duty brackets and mounts. The 18-6749 is built to withstand the stresses of marine applications, including vibration, shock, and constant exposure to moisture.

3. **Simplified Installation** Since it is a direct-fit solution for this specific engine-transmission combination, installation should be more straightforward compared to generic or aftermarket brackets that may require additional modifications or adjustments.

4. **Compatibility with Aftermarket Upgrades** If you plan to modify your engine or transmission in the future (e.g., upgrading to a larger prop or adjusting the drive shaft), this bracket provides a solid foundation that can accommodate such changes without requiring a complete replacement.

5. **Reduced Engine Vibration** A properly installed bracket helps dampen engine vibration, improving ride comfort and potentially extending the lifespan of connected components like the transmission and drivetrain.

6. **Warranty and Support** Sierra offers warranties on their products, and their customer support is generally reliable for troubleshooting or replacement needs.

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1. **Cost** Like many high-quality, direct-fit marine brackets, this product is not inexpensive. The price may be a significant investment, especially if you re on a tight budget or have other marine upgrades to prioritize.

2. **Limited Flexibility** Because it is designed specifically for International engines with Mercruiser transmissions, it may not be compatible with other engine brands or transmission models. If you ever switch to a different engine or transmission, this bracket may no longer fit.

3. **Installation Complexity** While the bracket is designed for ease of use, installing it may still require mechanical skill, especially if you re unfamiliar with marine engine mounts. Improper installation could lead to misalignment or premature wear.

4. **Weight** Heavy-duty brackets like this one add weight to your engine bay, which could slightly affect fuel efficiency or handling, though the impact is typically minimal in most applications.

5. **Availability and Lead Times** Depending on the supplier, stock levels for this bracket may vary. Some dealers or online retailers might have limited inventory, leading to longer wait times for delivery.

6. **Potential for Counterfeit Products** As with many popular marine parts, there is a risk of purchasing a counterfeit or low-quality replica. Always buy from reputable dealers to ensure you re getting the genuine Sierra product.

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The Sierra 18-6749 International bracket for Mercruiser floor mounts is a strong choice for boat owners with International engines paired with Mercruiser transmissions. Its primary strengths lie in its compatibility, durability, and ease of installation, making it a reliable investment for those who prioritize quality and longevity. However, the higher cost and limited flexibility for other engine brands may deter some buyers. If you re certain about your engine-transmission setup and want a robust, long-lasting solution, this bracket is well worth considering.

If you re running an International engine with a Mercruiser transmission and need a reliable floor mount bracket, the Sierra 18-6749 is an excellent option. Purchase it from an authorized dealer or a trusted online retailer to avoid counterfeit products. If budget is a concern, compare it with other high-quality alternatives like those from brands like **Marine Bracket Systems** or **Sea-Dog**, though ensure they are compatible with your specific setup. Always follow the manufacturer s installation guidelines to maximize performance and longevity. For most users, the benefits outweigh the drawbacks, making this a recommended purchase for those who value durability and fitment.

Details:

Sierra Rewind Spring Replaces Johnson/Eventide Outboard 312932 18-6511. Sierra warrants its products to be free of defects in workmanship and materials for the useful life product. You can view Sierras full warranty located above in the Technical Specification Section. Sierra Water Pump Impeller Replaces Johnson/Eventide Outboard 377230 18-3083.

Sierra 18-6749 Metal Trim Bracket for Mercruiser Floor Mount. Replaces: Mercury/Mercruiser 42419A1, 862548A1. Material: Metal. This platform is now integrated and seamless.

part #: 186749 prices

• $39.99-$138.60

specifications ignitionstartin:

• for models: Mercruiser
• brand: Sierra
• mpn: 18-6749
• part type: Bracket Mount
• material: Metal

returns ignitionstartin:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

shipping ignitionstartin:

• class: Economy
• transit: 12-19 Days
• type: Fixed
• cost: $0.00
• service: Economy

payments ignitionstartin:

• wallet: Google-pay
• other
• credit card: Mastercard

offer ignitionstartin:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 10
• started: June 8, 2026

general ignitionstartin:

• condition: New
• Boat Parts > Inboard Engines Components > Ignition Starting Systems

seller ignitionstartin:

• # reviews: 113223
• city: Wheeling, Illinois
• rating: 99.0%

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