MERCURY 883479 Bravo Gear Bearing 1/2 30T 0670

( Manufacturer Part Number: 883479 ), ( Part Type: Bearing Gear ), ( Please Note: All Parts Come As Pictured. ), ( Country Of Origin: United States )

Review MERCURY Oem Bravo 1/2 30t Gear Bearing fits MERCRUISER

The **Mercury 883479 Mercruiser Bravo 30T Gear Bearing (Part #0670)** is a precision-engineered, high-performance component designed exclusively for Mercury s Bravo outboard motors, ensuring seamless operation and longevity in demanding marine environments. This bearing is a critical part of the gearcase assembly, responsible for supporting the rotating shaft and reducing friction between the gear drive and the housing, thereby enhancing efficiency and durability. Crafted from high-grade, heat-treated steel, this bearing is engineered to withstand the intense stress and torque generated during high-speed operation, making it ideal for both recreational and performance-driven applications. Its robust construction minimizes wear and tear, extending the lifespan of the gearcase and preventing costly repairs or replacements. The 30T designation indicates its compatibility with the Bravo series 30-inch propeller shaft, ensuring a perfect fit and optimal performance. Whether used in fishing boats, cruisers, or high-performance vessels, this bearing delivers reliable, smooth operation, allowing anglers and boaters to focus on their time on the water without worrying about mechanical failures. Its seamless integration with Mercury s advanced propulsion systems ensures that power is efficiently transferred from the engine to the propeller, maximizing thrust and fuel efficiency. For marine enthusiasts seeking dependable performance and long-term reliability, the **Mercury 883479 Mercruiser Bravo 30T Gear Bearing (0670)** is an essential, high-quality replacement part that upholds the standards of Mercury s reputation for innovation and durability.

The **Mercury 883479 Mercruiser Bravo 30T Gear Bearing (Part #0670)** is a common replacement part for older Mercruiser outboard motors, particularly those with the Bravo series. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of buying a Mercury 883479 Mercruiser Bravo 30T Gear Bearing (0670)**

1. **Direct OEM Replacement** This is an original equipment manufacturer (OEM) part, meaning it is designed to fit and function exactly as the factory-intended bearing. This ensures compatibility with the Bravo 30T gearcase without modifications.

2. **Reliability and Durability** Mercury Marine is a well-known brand with a reputation for producing high-quality marine components. The Bravo series is known for its robustness, and this bearing is built to withstand the stresses of marine environments, including saltwater corrosion and heavy loads.

3. **Widely Available** As a common part for older Mercruiser outboards, this bearing is easy to find in marine supply stores, online retailers (e.g., Mercruiser dealers, Amazon, eBay), and through aftermarket suppliers. This makes it convenient to source, even for those without direct access to a Mercury dealership.

4. **Compatibility with Aftermarket Upgrades** If you plan to upgrade other components (e.g., shafts, propellers, or gearcases), this bearing is likely to be compatible with aftermarket parts designed for the Bravo series. This flexibility can be useful for performance or longevity improvements.

5. **Warranty Coverage** Purchasing directly from an authorized dealer or a reputable supplier may include a warranty, providing peace of mind against defects. Mercury s warranties often cover parts for a limited period, depending on the retailer.

6. **Cost-Effective for Long-Term Use** While the upfront cost may seem high compared to aftermarket alternatives, the longevity and reliability of an OEM bearing can save money in the long run by reducing the need for frequent replacements or repairs.

7. **Ease of Installation** The Bravo 30T gearcase is relatively straightforward to work on, and the bearing is designed to be installed with basic tools (e.g., press, socket set, and sealant). Many boat owners or mechanics can handle the installation without professional assistance.

8. **Support for Classic and Vintage Boats** If you own a classic or older Mercruiser outboard, this part is essential for maintaining the boat s original performance and resale value. Restoring or preserving the original components can be appealing to enthusiasts.

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### **Cons of buying a Mercury 883479 Mercruiser Bravo 30T Gear Bearing (0670)**

1. **Higher Upfront Cost** Compared to aftermarket or generic bearings, this OEM part is more expensive. For example, aftermarket bearings (e.g., from brands like **Seafoam, Gasketed, or Marine Bearing**) may cost 30 50% less while offering similar performance in some cases.

2. **Potential for Counterfeit Parts** When purchasing online (especially from third-party sellers), there is a risk of receiving counterfeit or low-quality parts that may fail prematurely. Always buy from verified sellers or authorized dealers to avoid this issue.

3. **Limited Availability of Tools for Installation** Installing a gear bearing often requires specialized tools (e.g., a gearcase press, bearing puller, or torque wrench). If you don t already own these, you ll need to rent or purchase them, adding to the overall cost.

4. **Risk of Over-Tightening or Damage During Installation** Improper installation (e.g., overtightening bolts, misalignment, or incorrect sealant use) can damage the bearing or gearcase. This risk exists with any bearing replacement but is particularly critical with OEM parts due to their precision engineering.

5. **Depreciation Over Time** If you re restoring a boat for resale, the value of OEM parts may not fully transfer to the buyer. Some buyers prefer aftermarket parts for cost savings or perceived durability, which could affect the boat s marketability.

6. **Lead Times for Replacement Parts** While this bearing is common, there may be occasional delays in shipping, especially if ordering from a distant supplier. This could cause downtime if you re in a hurry to get your boat back in the water.

7. **Environmental and Ethical Concerns** Mercury Marine s manufacturing processes may raise environmental concerns for some buyers, though this is subjective and depends on personal values. Aftermarket brands may have more eco-friendly production methods in some cases.

8. **Potential for Overkill for Light-Duty Use** If your boat is used infrequently or for light recreational purposes, the durability of an OEM bearing may be excessive. In such cases, a high-quality aftermarket bearing could suffice at a lower cost.

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### **Conclusion**

The **Mercury 883479 Mercruiser Bravo 30T Gear Bearing (0670)** is a reliable, high-quality OEM part that offers peace of mind for owners of Bravo series outboards. Its strengths lie in its direct compatibility, durability, and support for long-term performance. However, the higher cost and potential risks of counterfeit parts or improper installation must be carefully considered.

For most serious boat owners, especially those who prioritize longevity and original equipment integrity, this bearing is a worthwhile investment. If budget is a concern or if you re unsure about installation, an aftermarket bearing from a reputable brand (e.g., **Gasketed, Seafoam, or Marine Bearing**) could be a cost-effective alternative without sacrificing too much performance.

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### **Recommendation**

- You own a Bravo 30T outboard and need an exact replacement for restoration or maintenance.

- You prioritize reliability and are willing to pay for an OEM part.

- You have access to proper tools and can install it correctly.

- You re purchasing from an authorized dealer or a trusted online retailer to avoid counterfeit parts.

- You re on a tight budget and can find a high-quality aftermarket bearing (e.g., **Gasketed 30T bearing**) that fits your needs.

- You re unsure about installation and prefer a simpler replacement process.

- Your boat is used lightly, and you don t want to over-invest in parts.

**Final Tip:** Always inspect the bearing for damage before installation, use the correct sealant (e.g., Mercury Marine or marine-grade silicone), and follow the manufacturer s torque specifications. If in doubt, consult a professional mechanic to ensure proper installation.

Details:

Ready To Install. Good Condition. All Parts Come As Pictured.

part #: 883479 prices

• $181.99-$3200.00

specifications ouboaen:

• for models: Mercruiser
• for makes: Mercury
• mpn: 883479
• part type: Bearing Gear
• please note: All Parts Come As Pictured.
• country of origin: United States

seller ouboaen:

• city: Pasadena, California
• # reviews: 36099
• rating: 99.5%

shipping ouboaen:

• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx
• transit: 3-8 Days
• class: Standard
• cost: $0.00
• type: Fixed

offer ouboaen:

• availability: In Stock
• quantity: 1
• sold: 0
• started: March 18, 2026
• options: Ship-to-home

returns ouboaen:

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

payments ouboaen:

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

general ouboaen:

• Boat Parts > Outboard Engines Components > Other
• condition: Used

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